I was curious why this wasn't a problem with focal/5.4. I took a look at the last cert run that used focal/5.4[*], and I see these errors in the logs as well. I then went back to the cert run that was used to award focal certification[**] and those errors do *not* appear there.
So either this is an intermittent failure, or likely one of 3 things happened in the interim: - The test changed (or was introduced) - The kernel changed - The firmware changed The test does not appear to be new - I have not checked if it has changed. The kernel version between these runs changed from 5.4.0-37.41-generic to 5.4.0-121.137-generic. A change to this kernel code was introduced in between, in 5.4.0-100.113-generic: commit 7dcfa07b500834c75a4f5043a43f409a3f02bd5e Author: Feng Tang <[email protected]> Date: Wed Nov 17 10:37:50 2021 +0800 x86/tsc: Add a timer to make sure TSC_adjust is always checked BugLink: https://bugs.launchpad.net/bugs/1956381 commit c7719e79347803b8e3b6b50da8c6db410a3012b5 upstream. That causes the code that *might* print this warning to run every 10 minutes, instead of when the CPU enters idle. But the log shows these messages appearing every 28-29 seconds, so this being the cause seems unlikely. As for the firmware, the dmidecode output is identical between these runs, which suggests the firmware has not changed. [*] https://certification.canonical.com/hardware/201711-25989/submission/269263/ [**] https://certification.canonical.com/hardware/201711-25989/submission/172650/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-nvidia in Ubuntu. https://bugs.launchpad.net/bugs/2025616 Title: kernel Firmware Bug: TSC ADJUST differs failures during suspend Status in linux-nvidia package in Ubuntu: New Bug description: [Summary] Discoverd kernel error message during suspend stress test test case id: power-management/suspend_30_cycles_with_reboots collected log ~~~ High failures: s3: 180 failures ======================================== HIGH Kernel message: [38779.612837] [Firmware Bug]: TSC ADJUST differs: CPU0 0 --> -5266754042. Restoring (x 3) HIGH Kernel message: [38839.622411] [Firmware Bug]: TSC ADJUST differs: CPU0 0 --> -5295340520. Restoring (x 3) HIGH Kernel message: [38868.467564] [Firmware Bug]: TSC ADJUST differs: CPU0 0 --> -5270514862. Restoring (x 3) HIGH Kernel message: [38897.419897] [Firmware Bug]: TSC ADJUST differs: CPU0 0 --> -5275834616. Restoring (x 3) HIGH Kernel message: [38926.135900] [Firmware Bug]: TSC ADJUST differs: CPU0 0 --> -5249511520. Restoring (x 3) HIGH Kernel message: [38955.114760] [Firmware Bug]: TSC ADJUST differs: CPU0 0 --> -5252454094. Restoring (x 3) HIGH Kernel message: [38983.860142] [Firmware Bug]: TSC ADJUST differs: CPU0 0 --> -5270474360. Restoring (x 3) HIGH Kernel message: [39012.819868] [Firmware Bug]: TSC ADJUST differs: CPU0 0 --> -5264045578. Restoring (x 3) ~~~ [Failure rate] 1/1 [Additional information] CID: 201711-25989 SKU: DGX-1 Station system-manufacturer: NVIDIA system-product-name: DGX Station bios-version: 0406 CPU: Intel(R) Xeon(R) CPU E5-2698 v4 @ 2.20GHz (40x) GPU: 07:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:1db2] (rev a1) 08:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:1db2] (rev a1) 0e:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:1db2] (rev a1) 0f:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:1db2] (rev a1) nvidia-driver-version: 525.105.17 kernel-version: 5.15.0-1028-nvidia [Stage] Issue reported and logs collected at a later stage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-nvidia/+bug/2025616/+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
