This bug is awaiting verification that the 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: verification-needed-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/1926564 Title: An recursive locking in igb and igc drivers Status in HWE Next: New Status in linux package in Ubuntu: In Progress Status in linux-oem-5.10 package in Ubuntu: Invalid Status in linux-oem-5.10 source package in Focal: Fix Committed Status in linux source package in Hirsute: In Progress Status in linux source package in Impish: In Progress Bug description: [Impact] The rtnl_lock() has been called in rtnetlink_rcv_msg(), and then in __dev_open() it calls pm_runtime_resume() to resume devices, and in some devices' resume function(igb_resum,igc_resume) they calls rtnl_lock() again. That leads to a recursive lock. This issue is introduced by below commit since v5.9-rc1 bd869245a3dc net: core: try to runtime-resume detached device in __dev_open [Fix] This commit currently is still under discussion fixes the issue. https://lkml.org/lkml/2021/4/20/123 [Test] Verified on Dell Precision workstations. [Where problems could occur] The patch is pretty straightforward, no problems could occur by this change. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1926564/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
