[Kernel-packages] [Bug 2056227] Re: KVM: arm64: softlockups in stage2_apply_range
I've tested linux/5.15.0-104.114 and it passes my tests. Marking verification-done-jammy-linux. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2056227 Title: KVM: arm64: softlockups in stage2_apply_range Status in linux package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Bug description: [Impact] Tearing down kvm VMs on arm64 can cause softlockups to appear on console. When terminating VMs with > 100Gb of memory and 4k pages, the memory unmap times often exceed 20 seconds, which can trigger the softlockup detector. Portions of the unmap path also have interrupts disabled while tlb invalidation instructions run, which can further contribute to latency problems. My team has observed networking latency problems if the cpu where the teardown is occurring is also mapped to handle a NIC interrupt. Fortunately, a solution has been in place since Linux 6.1. A small pair of patches modify stage2_apply_range to operate on smaller memory ranges before performing a cond_resched. With these patches applied, softlockups are no longer observed when tearing down VMs with large amounts of memory. Although I also submitted the patches to 5.15 LTS (link to LTS submission in "Backport" section), I'd appreciate it if Ubuntu were willing to take this submission in parallel since the impact has left us unable to utilize arm64 for kvm until we can either migrate our hypervisors to hugepages, pick up this fix, or some combination of the two. [Backport] Backport the following fixes from linux 6.1: 3b5c082bbf KVM: arm64: Work out supported block level at compile time 5994bc9e05 KVM: arm64: Limit stage2_apply_range() batch size to largest block The fix is in 5994bc9e05 and 3b5c082bbf is a dependency that was submitted as part of the series. The original submission is here: https://lore.kernel.org/all/20221007234151.461779-1-oliver.up...@linux.dev/ I've also submitted the patches to 5.15 LTS here: https://lore.kernel.org/stable/cover.1709665227.git.k...@templeofstupid.com/ Both fixes cherry picked cleanly and there were no conflicts. [Test] Executed the test from 5994bc9e05 as well as my own run of kvm_page_table_test on a VM with 4k pages and a memory size > 100Gb. Without the patches, softlockups were observed in both tests. With the patches applied, the tests ran without incident. This was tested against both LTS 5.15.150 and linux-aws-5.15.0-1055. [Potential Regression] Regression potential is low. These patches have been present in Linux since 6.1 and appear to have needed no further maintenance. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2056227/+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 2056227] Re: KVM: arm64: softlockups in stage2_apply_range
For posterity, LTS 5.15 picked up this fix in 5.15.154 ** Tags removed: verification-needed-jammy-linux ** Tags added: verification-done-jammy-linux -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2056227 Title: KVM: arm64: softlockups in stage2_apply_range Status in linux package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Bug description: [Impact] Tearing down kvm VMs on arm64 can cause softlockups to appear on console. When terminating VMs with > 100Gb of memory and 4k pages, the memory unmap times often exceed 20 seconds, which can trigger the softlockup detector. Portions of the unmap path also have interrupts disabled while tlb invalidation instructions run, which can further contribute to latency problems. My team has observed networking latency problems if the cpu where the teardown is occurring is also mapped to handle a NIC interrupt. Fortunately, a solution has been in place since Linux 6.1. A small pair of patches modify stage2_apply_range to operate on smaller memory ranges before performing a cond_resched. With these patches applied, softlockups are no longer observed when tearing down VMs with large amounts of memory. Although I also submitted the patches to 5.15 LTS (link to LTS submission in "Backport" section), I'd appreciate it if Ubuntu were willing to take this submission in parallel since the impact has left us unable to utilize arm64 for kvm until we can either migrate our hypervisors to hugepages, pick up this fix, or some combination of the two. [Backport] Backport the following fixes from linux 6.1: 3b5c082bbf KVM: arm64: Work out supported block level at compile time 5994bc9e05 KVM: arm64: Limit stage2_apply_range() batch size to largest block The fix is in 5994bc9e05 and 3b5c082bbf is a dependency that was submitted as part of the series. The original submission is here: https://lore.kernel.org/all/20221007234151.461779-1-oliver.up...@linux.dev/ I've also submitted the patches to 5.15 LTS here: https://lore.kernel.org/stable/cover.1709665227.git.k...@templeofstupid.com/ Both fixes cherry picked cleanly and there were no conflicts. [Test] Executed the test from 5994bc9e05 as well as my own run of kvm_page_table_test on a VM with 4k pages and a memory size > 100Gb. Without the patches, softlockups were observed in both tests. With the patches applied, the tests ran without incident. This was tested against both LTS 5.15.150 and linux-aws-5.15.0-1055. [Potential Regression] Regression potential is low. These patches have been present in Linux since 6.1 and appear to have needed no further maintenance. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2056227/+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 2056227] Re: KVM: arm64: softlockups in stage2_apply_range
Patches to mailing list here: https://lists.ubuntu.com/archives/kernel-team/2024-March/149383.html -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2056227 Title: KVM: arm64: softlockups in stage2_apply_range Status in linux package in Ubuntu: New Bug description: [Impact] Tearing down kvm VMs on arm64 can cause softlockups to appear on console. When terminating VMs with > 100Gb of memory and 4k pages, the memory unmap times often exceed 20 seconds, which can trigger the softlockup detector. Portions of the unmap path also have interrupts disabled while tlb invalidation instructions run, which can further contribute to latency problems. My team has observed networking latency problems if the cpu where the teardown is occurring is also mapped to handle a NIC interrupt. Fortunately, a solution has been in place since Linux 6.1. A small pair of patches modify stage2_apply_range to operate on smaller memory ranges before performing a cond_resched. With these patches applied, softlockups are no longer observed when tearing down VMs with large amounts of memory. Although I also submitted the patches to 5.15 LTS (link to LTS submission in "Backport" section), I'd appreciate it if Ubuntu were willing to take this submission in parallel since the impact has left us unable to utilize arm64 for kvm until we can either migrate our hypervisors to hugepages, pick up this fix, or some combination of the two. [Backport] Backport the following fixes from linux 6.1: 3b5c082bbf KVM: arm64: Work out supported block level at compile time 5994bc9e05 KVM: arm64: Limit stage2_apply_range() batch size to largest block The fix is in 5994bc9e05 and 3b5c082bbf is a dependency that was submitted as part of the series. The original submission is here: https://lore.kernel.org/all/20221007234151.461779-1-oliver.up...@linux.dev/ I've also submitted the patches to 5.15 LTS here: https://lore.kernel.org/stable/cover.1709665227.git.k...@templeofstupid.com/ Both fixes cherry picked cleanly and there were no conflicts. [Test] Executed the test from 5994bc9e05 as well as my own run of kvm_page_table_test on a VM with 4k pages and a memory size > 100Gb. Without the patches, softlockups were observed in both tests. With the patches applied, the tests ran without incident. This was tested against both LTS 5.15.150 and linux-aws-5.15.0-1055. [Potential Regression] Regression potential is low. These patches have been present in Linux since 6.1 and appear to have needed no further maintenance. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2056227/+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 2056227] Re: KVM: arm64: softlockups in stage2_apply_range
This specifically affects Jammy and the 5.15 series. I have the necessary patches prepared and will e-mail those to the kernel team's mailing list. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2056227 Title: KVM: arm64: softlockups in stage2_apply_range Status in linux package in Ubuntu: New Bug description: [Impact] Tearing down kvm VMs on arm64 can cause softlockups to appear on console. When terminating VMs with > 100Gb of memory and 4k pages, the memory unmap times often exceed 20 seconds, which can trigger the softlockup detector. Portions of the unmap path also have interrupts disabled while tlb invalidation instructions run, which can further contribute to latency problems. My team has observed networking latency problems if the cpu where the teardown is occurring is also mapped to handle a NIC interrupt. Fortunately, a solution has been in place since Linux 6.1. A small pair of patches modify stage2_apply_range to operate on smaller memory ranges before performing a cond_resched. With these patches applied, softlockups are no longer observed when tearing down VMs with large amounts of memory. Although I also submitted the patches to 5.15 LTS (link to LTS submission in "Backport" section), I'd appreciate it if Ubuntu were willing to take this submission in parallel since the impact has left us unable to utilize arm64 for kvm until we can either migrate our hypervisors to hugepages, pick up this fix, or some combination of the two. [Backport] Backport the following fixes from linux 6.1: 3b5c082bbf KVM: arm64: Work out supported block level at compile time 5994bc9e05 KVM: arm64: Limit stage2_apply_range() batch size to largest block The fix is in 5994bc9e05 and 3b5c082bbf is a dependency that was submitted as part of the series. The original submission is here: https://lore.kernel.org/all/20221007234151.461779-1-oliver.up...@linux.dev/ I've also submitted the patches to 5.15 LTS here: https://lore.kernel.org/stable/cover.1709665227.git.k...@templeofstupid.com/ Both fixes cherry picked cleanly and there were no conflicts. [Test] Executed the test from 5994bc9e05 as well as my own run of kvm_page_table_test on a VM with 4k pages and a memory size > 100Gb. Without the patches, softlockups were observed in both tests. With the patches applied, the tests ran without incident. This was tested against both LTS 5.15.150 and linux-aws-5.15.0-1055. [Potential Regression] Regression potential is low. These patches have been present in Linux since 6.1 and appear to have needed no further maintenance. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2056227/+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 2056227] [NEW] KVM: arm64: softlockups in stage2_apply_range
Public bug reported: [Impact] Tearing down kvm VMs on arm64 can cause softlockups to appear on console. When terminating VMs with > 100Gb of memory and 4k pages, the memory unmap times often exceed 20 seconds, which can trigger the softlockup detector. Portions of the unmap path also have interrupts disabled while tlb invalidation instructions run, which can further contribute to latency problems. My team has observed networking latency problems if the cpu where the teardown is occurring is also mapped to handle a NIC interrupt. Fortunately, a solution has been in place since Linux 6.1. A small pair of patches modify stage2_apply_range to operate on smaller memory ranges before performing a cond_resched. With these patches applied, softlockups are no longer observed when tearing down VMs with large amounts of memory. Although I also submitted the patches to 5.15 LTS (link to LTS submission in "Backport" section), I'd appreciate it if Ubuntu were willing to take this submission in parallel since the impact has left us unable to utilize arm64 for kvm until we can either migrate our hypervisors to hugepages, pick up this fix, or some combination of the two. [Backport] Backport the following fixes from linux 6.1: 3b5c082bbf KVM: arm64: Work out supported block level at compile time 5994bc9e05 KVM: arm64: Limit stage2_apply_range() batch size to largest block The fix is in 5994bc9e05 and 3b5c082bbf is a dependency that was submitted as part of the series. The original submission is here: https://lore.kernel.org/all/20221007234151.461779-1-oliver.up...@linux.dev/ I've also submitted the patches to 5.15 LTS here: https://lore.kernel.org/stable/cover.1709665227.git.k...@templeofstupid.com/ Both fixes cherry picked cleanly and there were no conflicts. [Test] Executed the test from 5994bc9e05 as well as my own run of kvm_page_table_test on a VM with 4k pages and a memory size > 100Gb. Without the patches, softlockups were observed in both tests. With the patches applied, the tests ran without incident. This was tested against both LTS 5.15.150 and linux-aws-5.15.0-1055. [Potential Regression] Regression potential is low. These patches have been present in Linux since 6.1 and appear to have needed no further maintenance. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2056227 Title: KVM: arm64: softlockups in stage2_apply_range Status in linux package in Ubuntu: New Bug description: [Impact] Tearing down kvm VMs on arm64 can cause softlockups to appear on console. When terminating VMs with > 100Gb of memory and 4k pages, the memory unmap times often exceed 20 seconds, which can trigger the softlockup detector. Portions of the unmap path also have interrupts disabled while tlb invalidation instructions run, which can further contribute to latency problems. My team has observed networking latency problems if the cpu where the teardown is occurring is also mapped to handle a NIC interrupt. Fortunately, a solution has been in place since Linux 6.1. A small pair of patches modify stage2_apply_range to operate on smaller memory ranges before performing a cond_resched. With these patches applied, softlockups are no longer observed when tearing down VMs with large amounts of memory. Although I also submitted the patches to 5.15 LTS (link to LTS submission in "Backport" section), I'd appreciate it if Ubuntu were willing to take this submission in parallel since the impact has left us unable to utilize arm64 for kvm until we can either migrate our hypervisors to hugepages, pick up this fix, or some combination of the two. [Backport] Backport the following fixes from linux 6.1: 3b5c082bbf KVM: arm64: Work out supported block level at compile time 5994bc9e05 KVM: arm64: Limit stage2_apply_range() batch size to largest block The fix is in 5994bc9e05 and 3b5c082bbf is a dependency that was submitted as part of the series. The original submission is here: https://lore.kernel.org/all/20221007234151.461779-1-oliver.up...@linux.dev/ I've also submitted the patches to 5.15 LTS here: https://lore.kernel.org/stable/cover.1709665227.git.k...@templeofstupid.com/ Both fixes cherry picked cleanly and there were no conflicts. [Test] Executed the test from 5994bc9e05 as well as my own run of kvm_page_table_test on a VM with 4k pages and a memory size > 100Gb. Without the patches, softlockups were observed in both tests. With the patches applied, the tests ran without incident. This was tested against both LTS 5.15.150 and linux-aws-5.15.0-1055. [Potential Regression] Regression potential is low. These patches have been present in Linux since
[Kernel-packages] [Bug 2033122] Re: Request backport of xen timekeeping performance improvements
** Tags removed: verification-needed-jammy-linux-aws ** Tags added: verification-done-jammy-linux-aws -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2033122 Title: Request backport of xen timekeeping performance improvements Status in linux package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Released Status in linux source package in Lunar: Fix Released Bug description: Users, especially those on EC2, are encouraged to select tsc as their default clocksource. However, this requires manual tuning of the operating system. Kvm can determine if it safe to use the tsc, and will default to that instead of its pvclock when appropriate. This requests a backport of patch does the same for Xen instances. If appropriate, it's fine if this is applied to only the linux-aws branches. Not all Xen EC2 instances advertise explicit nomigrate support, however, on those that do we'll select tsc by default. On the subset of hosts where this is advertised, users will safely default to the more performant clocksource. [Impact] Xen instances default to the xen clocksource which has been documented to be slower. This is required for instances where the tsc is not safe to use, or the guest is subject to migration. On some platforms the performance impact can be high, and users are encouraged to select the tsc when appropriate. Instead of leaving up to users to figure this out by reading a variety of different documents, pick the fast clocksource when it can be determined to be safe to do so. [Backport] Clean cherry pick. No conflicts applying to 5.15 or 6.2. [Test] Booted EC2 xen instances with and without this patch and validated that on those that properly advertised the required criteria via cpuid, that the clocksource defaulted to tsc instead of xen. [Potential Regression] Potential is low, since only absurd configurations could lead to a problem. If this is considered risky, it can be applied to only linux-aws where the documented guidance is for users to enable tsc as the clocksource on Xen. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2033122/+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 2033122] Re: Request backport of xen timekeeping performance improvements
Thanks, booted both kernels on i3 instances that reported support for invariant tsc and had nomigrate set and was able to validate that both selected the tsc instead of xen as the clocksource. ** Tags removed: verification-needed-jammy-linux verification-needed-lunar-linux ** Tags added: verification-done-jammy-linux verification-done-lunar-linux -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2033122 Title: Request backport of xen timekeeping performance improvements Status in linux package in Ubuntu: Invalid Status in linux source package in Jammy: Fix Committed Status in linux source package in Lunar: Fix Committed Bug description: Users, especially those on EC2, are encouraged to select tsc as their default clocksource. However, this requires manual tuning of the operating system. Kvm can determine if it safe to use the tsc, and will default to that instead of its pvclock when appropriate. This requests a backport of patch does the same for Xen instances. If appropriate, it's fine if this is applied to only the linux-aws branches. Not all Xen EC2 instances advertise explicit nomigrate support, however, on those that do we'll select tsc by default. On the subset of hosts where this is advertised, users will safely default to the more performant clocksource. [Impact] Xen instances default to the xen clocksource which has been documented to be slower. This is required for instances where the tsc is not safe to use, or the guest is subject to migration. On some platforms the performance impact can be high, and users are encouraged to select the tsc when appropriate. Instead of leaving up to users to figure this out by reading a variety of different documents, pick the fast clocksource when it can be determined to be safe to do so. [Backport] Clean cherry pick. No conflicts applying to 5.15 or 6.2. [Test] Booted EC2 xen instances with and without this patch and validated that on those that properly advertised the required criteria via cpuid, that the clocksource defaulted to tsc instead of xen. [Potential Regression] Potential is low, since only absurd configurations could lead to a problem. If this is considered risky, it can be applied to only linux-aws where the documented guidance is for users to enable tsc as the clocksource on Xen. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2033122/+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 1987232] Re: WARN in trace_event_dyn_put_ref
I ran the original reproducer on a VM that was running linux/5.15.0-50.56 and linux/linux/5.15.0-46.49. On the former the problem did not reproduce, but on the latter it did. Marking this as verified via testing and setting 'verification-done-jammy'. ** Tags added: verification-done-jammy -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Status in linux source package in Jammy: Fix Committed Status in linux source package in Kinetic: Confirmed Bug description: [SRU Justification] Impact: Some imbalanced ref-counting produces kernel warnings regularly. Since it is a warning level, this triggers system monitoring on servers which in turn causes unnecessary work for inspecting the logs. Fix: There is a fix upstream and also backported to the upstream stable branch. However we are still a bit behind catching up with the latest versions. Since this is having quite an impact and the fix is rather straight forward, we pull this in from upstream stable ahead of time. Test case: tbd Regression potential: Regressions would manifest as different errors related to ref-counting. --- I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages
[Kernel-packages] [Bug 1987232] Re: WARN in trace_event_dyn_put_ref
@Stefan thanks for explaining how the process works. I appreciate your willingness to take this patch ahead of its arrival in the stable pull for the Jammy train. One of your updates mentioned TBD on a test. I have a reproducer in the original cover letter to Steven here, if it helps: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Status in linux source package in Jammy: Fix Committed Status in linux source package in Kinetic: Confirmed Bug description: [SRU Justification] Impact: Some imbalanced ref-counting produces kernel warnings regularly. Since it is a warning level, this triggers system monitoring on servers which in turn causes unnecessary work for inspecting the logs. Fix: There is a fix upstream and also backported to the upstream stable branch. However we are still a bit behind catching up with the latest versions. Since this is having quite an impact and the fix is rather straight forward, we pull this in from upstream stable ahead of time. Test case: tbd Regression potential: Regressions would manifest as different errors related to ref-counting. --- I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to :
[Kernel-packages] [Bug 1987232] Re: WARN in trace_event_dyn_put_ref
Should this also get nominated as affecting Focal? I hit this on the 5.15 kernel that was attached to linux-aws for Focal. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Status in linux source package in Jammy: In Progress Status in linux source package in Kinetic: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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 1987232] UdevDb.txt
apport information ** Attachment added: "UdevDb.txt" https://bugs.launchpad.net/bugs/1987232/+attachment/5610813/+files/UdevDb.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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 1987232] Re: WARN in trace_event_dyn_put_ref
The fix has also been added to the Stable queue for 5.15 and 5.19 as of this morning: https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable- queue.git/tree/queue-5.19/tracing-perf-fix-double-put-of-trace-event- when-init-fails.patch https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable- queue.git/tree/queue-5.15/tracing-perf-fix-double-put-of-trace-event- when-init-fails.patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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 1987232] WifiSyslog.txt
apport information ** Attachment added: "WifiSyslog.txt" https://bugs.launchpad.net/bugs/1987232/+attachment/5610814/+files/WifiSyslog.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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 1987232] acpidump.txt
apport information ** Attachment added: "acpidump.txt" https://bugs.launchpad.net/bugs/1987232/+attachment/5610815/+files/acpidump.txt ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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 1987232] ProcModules.txt
apport information ** Attachment added: "ProcModules.txt" https://bugs.launchpad.net/bugs/1987232/+attachment/5610812/+files/ProcModules.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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 1987232] ProcInterrupts.txt
apport information ** Attachment added: "ProcInterrupts.txt" https://bugs.launchpad.net/bugs/1987232/+attachment/5610811/+files/ProcInterrupts.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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 1987232] Lspci.txt
apport information ** Attachment added: "Lspci.txt" https://bugs.launchpad.net/bugs/1987232/+attachment/5610808/+files/Lspci.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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 1987232] ProcCpuinfoMinimal.txt
apport information ** Attachment added: "ProcCpuinfoMinimal.txt" https://bugs.launchpad.net/bugs/1987232/+attachment/5610810/+files/ProcCpuinfoMinimal.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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 1987232] Lspci-vt.txt
apport information ** Attachment added: "Lspci-vt.txt" https://bugs.launchpad.net/bugs/1987232/+attachment/5610809/+files/Lspci-vt.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. --- ProblemType: Bug AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Aug 22 17:32 seq crw-rw 1 root audio 116, 33 Aug 22 17:32 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: Lsusb-t: Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: MachineType: Amazon EC2 c5d.12xlarge Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 RelatedPackageVersions: linux-restricted-modules-5.15.0-1015-aws N/A linux-backports-modules-5.15.0-1015-aws N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.15.0-1015-aws x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: False dmi.bios.date: 10/16/2017 dmi.bios.release: 1.0 dmi.bios.vendor: Amazon EC2 dmi.bios.version: 1.0 dmi.board.asset.tag: i-03f5d8581c7ad94aa dmi.board.vendor: Amazon EC2 dmi.chassis.asset.tag: Amazon EC2 dmi.chassis.type: 1 dmi.chassis.vendor: Amazon EC2 dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: dmi.product.name: c5d.12xlarge dmi.sys.vendor: Amazon EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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 1987232] Re: WARN in trace_event_dyn_put_ref
apport information ** Tags added: apport-collected focal uec-images ** Description changed: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d - The problem started appearing as soon as our systems picked up the - linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory - serves). Could you please cherry pick this fix and pull it back to the - the linux and linux-aws kernels for Focal? There's test here: - https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ - that reproduces the problem very reliably for me. With the patch - applied, I no longer get the WARNs. + The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. + --- + ProblemType: Bug + AlsaDevices: + total 0 + crw-rw 1 root audio 116, 1 Aug 22 17:32 seq + crw-rw 1 root audio 116, 33 Aug 22 17:32 timer + AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' + ApportVersion: 2.20.11-0ubuntu27.24 + Architecture: amd64 + ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' + AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: + CRDA: N/A + CasperMD5CheckResult: skip + DistroRelease: Ubuntu 20.04 + IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' + Lsusb: Error: command ['lsusb'] failed with exit code 1: + Lsusb-t: + + Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1: + MachineType: Amazon EC2 c5d.12xlarge + Package: linux (not installed) + PciMultimedia: + + ProcEnviron: + TERM=xterm-256color + PATH=(custom, no user) + LANG=C.UTF-8 + SHELL=/bin/bash + ProcFB: + + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-1015-aws root=PARTUUID=4986e35b-1bd5-45d3-b528-fa2edb861a38 ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1 + ProcVersionSignature: Ubuntu 5.15.0-1015.19~20.04.1-aws 5.15.39 + RelatedPackageVersions: + linux-restricted-modules-5.15.0-1015-aws N/A + linux-backports-modules-5.15.0-1015-aws N/A + linux-firmware N/A + RfKill: Error: [Errno 2] No such file or directory: 'rfkill' + Tags: focal uec-images + Uname: Linux 5.15.0-1015-aws x86_64 + UnreportableReason: This report is about a package that is not installed. + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: N/A + _MarkForUpload: False + dmi.bios.date: 10/16/2017 + dmi.bios.release: 1.0 + dmi.bios.vendor: Amazon EC2 + dmi.bios.version: 1.0 + dmi.board.asset.tag: i-03f5d8581c7ad94aa + dmi.board.vendor: Amazon EC2 + dmi.chassis.asset.tag: Amazon EC2 + dmi.chassis.type: 1 + dmi.chassis.vendor: Amazon EC2 + dmi.modalias: dmi:bvnAmazonEC2:bvr1.0:bd10/16/2017:br1.0:svnAmazonEC2:pnc5d.12xlarge:pvr:rvnAmazonEC2:rn:rvr:cvnAmazonEC2:ct1:cvr:sku: + dmi.product.name: c5d.12xlarge + dmi.sys.vendor: Amazon EC2 ** Attachment added: "CurrentDmesg.txt" https://bugs.launchpad.net/bugs/1987232/+attachment/5610807/+files/CurrentDmesg.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: Confirmed Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See
[Kernel-packages] [Bug 1987232] [NEW] WARN in trace_event_dyn_put_ref
Public bug reported: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1987232 Title: WARN in trace_event_dyn_put_ref Status in linux package in Ubuntu: New Bug description: I have systems that are regularly hitting a WARN in trace_event_dyn_put_ref. The exact message is: WARNING: CPU: 1 PID: 30309 at kernel/trace/trace_dynevent.c:46 +trace_event_dyn_put_ref+0x15/0x20 With the following stacktrace: perf_trace_init+0x8f/0xd0 perf_tp_event_init+0x1f/0x40 perf_try_init_event+0x4a/0x130 perf_event_alloc+0x497/0xf40 __do_sys_perf_event_open+0x1d4/0xf70 __x64_sys_perf_event_open+0x20/0x30 do_syscall_64+0x5c/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae I've debugged this and worked with upstream to get a fix into Linux. It was recently merged in 6.0-rc2. See here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc2=7249921d94ff64f67b733eca0b68853a62032b3d The problem started appearing as soon as our systems picked up the linux-aws-5.15 branch for Focal. (That was 5.15.0-1015-aws, if memory serves). Could you please cherry pick this fix and pull it back to the the linux and linux-aws kernels for Focal? There's test here: https://lore.kernel.org/all/cover.1660347763.git.k...@templeofstupid.com/ that reproduces the problem very reliably for me. With the patch applied, I no longer get the WARNs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987232/+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
