[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
** Changed in: hwe-next Status: In Progress => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux-lowlatency- hwe-5.19/5.19.0-1017.18~22.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-jammy-linux-lowlatency-hwe-5.19 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux- aws-5.19/5.19.0-1019.20~22.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-jammy-linux-aws-5.19 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux- aws-5.15/5.15.0-1030.34~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-focal-linux-aws-5.15 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux- bluefield/5.15.0-1012.14 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification- done-jammy'. If the problem still exists, change the tag 'verification- needed-jammy' to 'verification-failed-jammy'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-jammy-linux-bluefield -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux- azure-5.15/5.15.0-1033.40~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-focal-linux-azure-5.15 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux-aws/5.15.0-1029.33 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-jammy-linux-aws -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux-azure/5.15.0-1032.39 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags removed: verification-done-jammy ** Tags added: kernel-spammed-jammy-linux-azure verification-needed-jammy -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux-azure/5.19.0-1017.18 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-kinetic' to 'verification-done-kinetic'. If the problem still exists, change the tag 'verification-needed-kinetic' to 'verification-failed-kinetic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags removed: verification-done-kinetic ** Tags added: kernel-spammed-kinetic-linux-azure verification-needed-kinetic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux- gke-5.15/5.15.0-1025.30~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-focal-linux-gke-5.15 verification-needed-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
** Tags removed: verification-needed-kinetic ** Tags added: verification-done-kinetic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux-aws/5.19.0-1018.19 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-kinetic' to 'verification-done-kinetic'. If the problem still exists, change the tag 'verification-needed-kinetic' to 'verification-failed-kinetic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags removed: verification-done-kinetic ** Tags added: kernel-spammed-kinetic-linux-aws verification-needed-kinetic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
** Tags removed: verification-needed-kinetic ** Tags added: verification-done-kinetic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux-ibm/5.19.0-1015.16 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-kinetic' to 'verification-done-kinetic'. If the problem still exists, change the tag 'verification-needed-kinetic' to 'verification-failed-kinetic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags removed: verification-done-kinetic ** Tags added: kernel-spammed-kinetic-linux-ibm verification-needed-kinetic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug was fixed in the package linux - 5.19.0-28.29 --- linux (5.19.0-28.29) kinetic; urgency=medium * kinetic/linux: 5.19.0-28.29 -proposed tracker (LP: #1999746) * mm:vma05 in ubuntu_ltp fails with '[vdso] bug not patched' on kinetic/linux 5.19.0-27.28 (LP: #1999094) - fix coredump breakage linux (5.19.0-27.28) kinetic; urgency=medium * kinetic/linux: 5.19.0-27.28 -proposed tracker (LP: #1997794) * Packaging resync (LP: #1786013) - debian/dkms-versions -- update from kernel-versions (main/2022.11.14) * selftests/.../nat6to4 breaks the selftests build (LP: #1996536) - [Config] Disable selftests/net/bpf/nat6to4 * Expose built-in trusted and revoked certificates (LP: #1996892) - [Packaging] Expose built-in trusted and revoked certificates * support for same series backports versioning numbers (LP: #1993563) - [Packaging] sameport -- add support for sameport versioning * Add cs35l41 firmware loading support (LP: #1995957) - ASoC: cs35l41: Move cs35l41 exit hibernate function into shared code - ASoC: cs35l41: Add common cs35l41 enter hibernate function - ASoC: cs35l41: Do not print error when waking from hibernation - ALSA: hda: cs35l41: Don't dereference fwnode handle - ALSA: hda: cs35l41: Allow compilation test on non-ACPI configurations - ALSA: hda: cs35l41: Drop wrong use of ACPI_PTR() - ALSA: hda: cs35l41: Consolidate selections under SND_HDA_SCODEC_CS35L41 - ALSA: hda: hda_cs_dsp_ctl: Add Library to support CS_DSP ALSA controls - ALSA: hda: hda_cs_dsp_ctl: Add apis to write the controls directly - ALSA: hda: cs35l41: Save codec object inside component struct - ALSA: hda: cs35l41: Add initial DSP support and firmware loading - ALSA: hda: cs35l41: Save Subsystem ID inside CS35L41 Driver - ALSA: hda: cs35l41: Support reading subsystem id from ACPI - ALSA: hda: cs35l41: Support multiple load paths for firmware - ALSA: hda: cs35l41: Support Speaker ID for laptops - ALSA: hda: cs35l41: Support Hibernation during Suspend - ALSA: hda: cs35l41: Read Speaker Calibration data from UEFI variables - ALSA: hda: hda_cs_dsp_ctl: Add fw id strings - ALSA: hda: cs35l41: Add defaulted values into dsp bypass config sequence - ALSA: hda: cs35l41: Support Firmware switching and reloading - ALSA: hda: cs35l41: Add module parameter to control firmware load - Revert "ALSA: hda: cs35l41: Allow compilation test on non-ACPI configurations" - ALSA: hda/realtek: More robust component matching for CS35L41 - [Config] updateconfigs for SND_HDA_CS_DSP_CONTROLS * Fibocom WWAN FM350-GL suspend error (notebook not suspend) (LP: #1990700) - net: wwan: t7xx: Add AP CLDMA * Screen cannot turn on after screen off with Matrox G200eW3 [102b:0536] (LP: #1995573) - drm/mgag200: Optimize damage clips - drm/mgag200: Add FB_DAMAGE_CLIPS support - drm/mgag200: Enable atomic gamma lut update * TEE Support for CCP driver (LP: #1991608) - crypto: ccp: Add support for TEE for PCI ID 0x14CA * AMD Cezanne takes 5 minutes to wake up from suspend (LP: #1993715) - platform/x86/amd: pmc: Read SMU version during suspend on Cezanne systems * Fix ath11k deadlock on WCN6855 (LP: #1995041) - wifi: ath11k: avoid deadlock during regulatory update in ath11k_regd_update() * intel_pmc_core not load on Raptor Lake (LP: #1988461) - x86/cpu: Add new Raptor Lake CPU model number - platform/x86/intel: pmc/core: Add Raptor Lake support to pmc core driver * [UBUNTU 20.04] boot: Add s390x secure boot trailer (LP: #1996071) - s390/boot: add secure boot trailer * Fix rfkill causing soft blocked wifi (LP: #1996198) - platform/x86: hp_wmi: Fix rfkill causing soft blocked wifi * Support Icicle Kit reference design v2022.10 (LP: #1993148) - riscv: dts: microchip: icicle: re-jig fabric peripheral addresses - riscv: dts: microchip: reduce the fic3 clock rate - riscv: dts: microchip: update memory configuration for v2022.10 - riscv: dts: microchip: fix fabric i2c reg size - SAUCE: riscv: dts: microchip: Disable PCIe on the Icicle Kit * Fix Turbostat is not working for fam: 6 model: 191: stepping: 2 CPU (LP: #1991365) - tools/power turbostat: Add support for RPL-S * armhf kernel compiled with gcc-12 fails to boot on pi 3/2 (LP: #1993120) - [Packaging] Support arch-specific compilers in updateconfigs * Kinetic update: v5.19.17 upstream stable release (LP: #1994179) - Revert "fs: check FMODE_LSEEK to control internal pipe splicing" - ALSA: oss: Fix potential deadlock at unregistration - ALSA: rawmidi: Drop register_mutex in snd_rawmidi_free() - ALSA: usb-audio: Fix potential memory leaks - ALSA: usb-audio: Fix NULL dererence at error path - ALSA: hda/realtek: remove ALC289_FIXUP_DUAL_SPK for Dell 5530 - ALSA: hda/realtek: Correct pin configs for ASUS G533Z - ALSA:
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug was fixed in the package linux - 5.15.0-57.63
---
linux (5.15.0-57.63) jammy; urgency=medium
* jammy/linux: 5.15.0-57.63 -proposed tracker (LP: #1997737)
* Packaging resync (LP: #1786013)
- [Packaging] update variants
- debian/dkms-versions -- update from kernel-versions (main/2022.11.14)
* Expose built-in trusted and revoked certificates (LP: #1996892)
- [Packaging] Expose built-in trusted and revoked certificates
* TEE Support for CCP driver (LP: #1991608)
- crypto: ccp: Add support for TEE for PCI ID 0x14CA
* alsa: soc: the kernel print UBSAN calltrace on the machine with cs35l41
codec (LP: #1996121)
- ASoC: cs35l41: Add one more variable in the debug log
- ASoC: cs35l41: Fix an out-of-bounds access in otp_packed_element_t
* Fix ath11k deadlock on WCN6855 (LP: #1995041)
- wifi: ath11k: avoid deadlock during regulatory update in
ath11k_regd_update()
* [UBUNTU 20.04] boot: Add s390x secure boot trailer (LP: #1996071)
- s390/boot: add secure boot trailer
* Fix rfkill causing soft blocked wifi (LP: #1996198)
- platform/x86: hp_wmi: Fix rfkill causing soft blocked wifi
* Fix Thunderbolt device hotplug fail when connect via thunderbolt dock
(LP: #1991366)
- PCI: Fix used_buses calculation in pci_scan_child_bus_extend()
- PCI: Pass available buses even if the bridge is already configured
- PCI: Move pci_assign_unassigned_root_bus_resources()
- PCI: Distribute available resources for root buses, too
- PCI: Fix whitespace and indentation
- PCI: Fix typo in pci_scan_child_bus_extend()
* md: Replace snprintf with scnprintf (LP: #1993315)
- md: Replace snprintf with scnprintf
* input/keyboard: the keyboard on some Asus laptops can't work (LP: #1992266)
- ACPI: resource: Skip IRQ override on Asus Vivobook K3402ZA/K3502ZA
- ACPI: resource: Add ASUS model S5402ZA to quirks
* Fix Turbostat is not working for fam: 6 model: 191: stepping: 2 CPU
(LP: #1991365)
- tools/power turbostat: Add support for RPL-S
* pcieport :00:1b.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal),
type=Transaction Layer, (Requester ID) (LP: #1988797)
- PCI/PTM: Cache PTM Capability offset
- PCI/PTM: Add pci_upstream_ptm() helper
- PCI/PTM: Separate configuration and enable
- PCI/PTM: Add pci_suspend_ptm() and pci_resume_ptm()
- PCI/PTM: Move pci_ptm_info() body into its only caller
- PCI/PTM: Preserve RsvdP bits in PTM Control register
- PCI/PTM: Reorder functions in logical order
- PCI/PTM: Consolidate PTM interface declarations
- PCI/PM: Always disable PTM for all devices during suspend
- PCI/PM: Simplify pci_pm_suspend_noirq()
* Fix RPL-S support on powercap/intel_rapl (LP: #1990161)
- x86/cpu: Drop spurious underscore from RAPTOR_LAKE #define
- x86/cpu: Add new Alderlake and Raptorlake CPU model numbers
- x86/cpu: Add new Raptor Lake CPU model number
- powercap: intel_rapl: add support for RaptorLake
- powercap: intel_rapl: Add support for RAPTORLAKE_P
- powercap: intel_rapl: Add support for RAPTORLAKE_S
* AMD Yellow Carp system hang on HDMI plug in/out over HP hook2 docking
(LP: #1991974)
- drm/amd/display: Fix for link encoder access for MST.
- drm/amd/display: Fix MST link encoder availability check.
- drm/amd/display: FEC configuration for dpia links
- drm/amd/display: FEC configuration for dpia links in MST mode
- drm/amd/display: Add work around for tunneled MST.
* Jammy update: v5.15.74 upstream stable release (LP: #1995638)
- nilfs2: fix use-after-free bug of struct nilfs_root
- nilfs2: fix leak of nilfs_root in case of writer thread creation failure
- nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure
- ceph: don't truncate file in atomic_open
- random: restore O_NONBLOCK support
- random: clamp credited irq bits to maximum mixed
- ALSA: hda: Fix position reporting on Poulsbo
- efi: Correct Macmini DMI match in uefi cert quirk
- USB: serial: qcserial: add new usb-id for Dell branded EM7455
- Revert "powerpc/rtas: Implement reentrant rtas call"
- Revert "crypto: qat - reduce size of mapped region"
- random: avoid reading two cache lines on irq randomness
- random: use expired timer rather than wq for mixing fast pool
- Input: xpad - add supported devices as contributed on github
- Input: xpad - fix wireless 360 controller breaking after suspend
- misc: pci_endpoint_test: Aggregate params checking for xfer
- misc: pci_endpoint_test: Fix pci_endpoint_test_{copy,write,read}() panic
- Linux 5.15.74
* Jammy update: v5.15.73 upstream stable release (LP: #1995637)
- Makefile.extrawarn: Move -Wcast-function-type-strict to W=1
- docs: update mediator information in CoC docs
- xsk: Inherit need_wakeup flag for shared sockets
- mm: gup: fix the fast GUP race against THP
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug was fixed in the package linux-oem-5.17 - 5.17.0-1025.26 --- linux-oem-5.17 (5.17.0-1025.26) jammy; urgency=medium * jammy/linux-oem-5.17: 5.17.0-1025.26 -proposed tracker (LP: #1997739) * Packaging resync (LP: #1786013) - debian/dkms-versions -- update from kernel-versions (main/2022.11.14) * Rear Audio port sometimes has no audio output after reboot(Cirrus Logic) (LP: #1998905) - SAUCE: ALSA: hda/cirrus: Add extra 10 ms delay to allow PLL settle and lock. * Micron NVME storage failure [1344,5407] (LP: #1998883) - nvme: add a bogus subsystem NQN quirk for Micron MTFDKBA2T0TFH * CVE-2022-42896 - Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm * Fix AMD-PState driver for Genoa CPU (LP: #1998106) - Documentation: amd-pstate: add tracer tool introduction - Documentation: amd-pstate: grammar and sentence structure updates - Documentation: amd-pstate: Add unit test introduction - cpufreq: amd-pstate: cpufreq: amd-pstate: reset MSR_AMD_PERF_CTL register at init - cpufreq: amd-pstate: change amd-pstate driver to be built-in type - cpufreq: amd-pstate: add amd-pstate driver parameter for mode selection - Documentation: amd-pstate: add driver working mode introduction - Documentation: add amd-pstate kernel command line options * Mediatek WLAN RZ616(MT7922) SAR table control (LP: #1997200) - mt76: add 6 GHz band support in mt76_sar_freq_ranges - mt76: mt7921: introduce ACPI SAR support - mt76: mt7921: introduce ACPI SAR config in tx power - wifi: mt76: mt7921: fix use after free in mt7921_acpi_read() * Add cs35l41 firmware loading support (LP: #1995957) - ASoC: cs35l41: Remove unnecessary param - ALSA: cs35l41: Unify hardware configuration - ALSA: cs35l41: Check hw_config before using it - ALSA: cs35l41: Move cs35l41_gpio_config to shared lib - ALSA: hda: cs35l41: Fix I2S params comments - ALSA: hda: cs35l41: Always configure the DAI - ALSA: hda: cs35l41: Add Boost type flag - ALSA: hda: cs35l41: Put the device into safe mode for external boost - ALSA: hda: cs35l41: Mute the device before shutdown - ALSA: cs35l41: Enable Internal Boost in shared lib - ALSA: hda: cs35l41: Move boost config to initialization code - ALSA: hda: cs35l41: Remove cs35l41_hda_reg_sequence struct - ALSA: hda: cs35l41: Reorganize log for playback actions - ALSA: hda: cs35l41: Handle all external boost setups the same way - ALSA: hda: cs35l41: Move external boost handling to lib for ASoC use - ASoC: cs35l41: Document CS35l41 External Boost - ASoC: cs35l41: Support external boost - ALSA: hda: cs35l41: Fix error in spi cs35l41 hda driver name - ALSA: hda: cs35l41: Set Speaker Position for CLSA0100 Laptop - ALSA: hda: cs35l41: Remove Set Channel Map api from binding - ALSA: hda: cs35l41: Add Support for Interrupts - ALSA: hda: cs35l41: Enable GPIO2 Interrupt for CLSA0100 laptops - ASoC: cs35l41: Move cs35l41_set_cspl_mbox_cmd to shared code - ASoC: cs35l41: Move cs35l41 fs errata into shared code - ASoC: cs35l41: Move cs_dsp config struct into shared code - ALSA: hda: cs35l41: Add Amp Name based on channel and index - ASoC: cs35l41: Move cs35l41 exit hibernate function into shared code - ASoC: cs35l41: Add common cs35l41 enter hibernate function - ASoC: cs35l41: Do not print error when waking from hibernation - ALSA: hda: cs35l41: Don't dereference fwnode handle - ALSA: hda: cs35l41: Allow compilation test on non-ACPI configurations - ALSA: hda: cs35l41: Drop wrong use of ACPI_PTR() - ALSA: hda: cs35l41: Consolidate selections under SND_HDA_SCODEC_CS35L41 - ALSA: hda: hda_cs_dsp_ctl: Add Library to support CS_DSP ALSA controls - ALSA: hda: hda_cs_dsp_ctl: Add apis to write the controls directly - ALSA: hda: cs35l41: Save codec object inside component struct - ALSA: hda: cs35l41: Add initial DSP support and firmware loading - ALSA: hda: cs35l41: Save Subsystem ID inside CS35L41 Driver - ALSA: hda: cs35l41: Support reading subsystem id from ACPI - ALSA: hda: cs35l41: Support multiple load paths for firmware - ALSA: hda: cs35l41: Support Speaker ID for laptops - ALSA: hda: cs35l41: Support Hibernation during Suspend - ALSA: hda: cs35l41: Read Speaker Calibration data from UEFI variables - ALSA: hda: hda_cs_dsp_ctl: Add fw id strings - ALSA: hda: cs35l41: Add defaulted values into dsp bypass config sequence - ALSA: hda: cs35l41: Support Firmware switching and reloading - ALSA: hda: cs35l41: Add module parameter to control firmware load - Revert "ALSA: hda: cs35l41: Allow compilation test on non-ACPI configurations" - [Config] updateconfigs for SND_HDA_CS_DSP_CONTROLS * Screen freeze after resuming from suspend (nvme0: I/O timeout) (LP: #1996048) - SAUCE: PCI: vmd: Disable MSI remapping after suspend * Screen cannot
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
this is in 6.0-1008 ** Changed in: linux-oem-6.0 (Ubuntu Jammy) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
** Tags removed: verification-needed-jammy ** Tags added: verification-done-jammy -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Committed Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux-nvidia/5.15.0-1011.11 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags removed: verification-done-jammy ** Tags added: kernel-spammed-jammy-linux-nvidia verification-needed-jammy -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Committed Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
I see it was marked Fix released for linux (Ubuntu), however it's not actually fixed in lunar, not even the update from kinetic-proposed has been copied up to lunar-proposed. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Committed Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
Verified on 5.17.0-1025 5.19.0-27 ** Tags removed: verification-needed-jammy verification-needed-kinetic ** Tags added: verification-done-jammy verification-done-kinetic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Committed Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux-oem-5.17/5.17.0-1025.26 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-jammy-linux-oem-5.17 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Committed Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux/5.15.0-57.63 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-jammy-linux verification-needed-jammy -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Committed Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
This bug is awaiting verification that the linux/5.19.0-27.28 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-kinetic' to 'verification-done-kinetic'. If the problem still exists, change the tag 'verification-needed-kinetic' to 'verification-failed-kinetic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-kinetic-linux verification-needed-kinetic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Committed Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
Verification-done-jammy-5.15 Verification-done-jammy-5.17-oem Verification-done-oem-6.0 Verification-done-kinetic Verification-done- unstable-6.1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Committed Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
** Changed in: linux (Ubuntu Kinetic) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Kinetic) Status: In Progress => Fix Committed ** Changed in: linux (Ubuntu Jammy) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Jammy) Status: In Progress => Fix Committed ** Changed in: linux (Ubuntu) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: Fix Released Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Committed Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
** Changed in: linux-oem-6.0 (Ubuntu Jammy) Status: In Progress => Fix Committed ** Changed in: linux-oem-5.17 (Ubuntu Jammy) Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: In Progress Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: In Progress Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Committed Status in linux source package in Kinetic: In Progress Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
** Changed in: linux-oem-5.17 (Ubuntu) Status: In Progress => Invalid ** Changed in: linux-oem-5.17 (Ubuntu Kinetic) Status: In Progress => Invalid ** Changed in: linux-oem-6.0 (Ubuntu) Status: In Progress => Invalid ** Changed in: linux-oem-6.0 (Ubuntu Kinetic) Status: In Progress => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: In Progress Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux source package in Jammy: In Progress Status in linux-oem-5.17 source package in Jammy: In Progress Status in linux-oem-6.0 source package in Jammy: In Progress Status in linux source package in Kinetic: In Progress Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1995041] Re: Fix ath11k deadlock on WCN6855
As an FYI, Kalle is also sending this fix to 6.1-rc with a CC to stable. So this will eventually drop off the Ubuntu kernels as SAUCE. https://patchwork.kernel.org/project/linux- wireless/patch/20221102114803.13485-1-kv...@kernel.org/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.17 in Ubuntu. https://bugs.launchpad.net/bugs/1995041 Title: Fix ath11k deadlock on WCN6855 Status in HWE Next: In Progress Status in linux package in Ubuntu: In Progress Status in linux-oem-5.17 package in Ubuntu: In Progress Status in linux-oem-6.0 package in Ubuntu: In Progress Status in linux source package in Jammy: In Progress Status in linux-oem-5.17 source package in Jammy: In Progress Status in linux-oem-6.0 source package in Jammy: In Progress Status in linux source package in Kinetic: In Progress Status in linux-oem-5.17 source package in Kinetic: In Progress Status in linux-oem-6.0 source package in Kinetic: In Progress Bug description: [Impact] ath11k is in deadlock when stress reboot or suspend on WCN6855. sometimes kernel hang. Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20 Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k] Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211] [Fix] Fix this by switching from using regulatory_set_wiphy_regd_sync() to regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue which handles the locking on it's own. So the ath11k workqueue can simply exit without taking any locks, avoiding the deadlock. [Test] Verified on hardware, stress reboot and suspend 30 times OK. [Where problems could occur] It may break ath11k wifi driver. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1995041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
