This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 2007908 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- 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/2007908 Title: [Possible Regression] powerpc/tm:tm-resched-dscr in ubuntu_kernel_selftests failed on P8 Status in ubuntu-kernel-tests: New Status in linux package in Ubuntu: Incomplete Bug description: Issue found with J-hwe-5.15.0-66.73~20.04.1 on Power8 node "gulpin". Test failed with: test: tm_resched_dscr tags: git_version:bfd31f0-dirty Binding to cpu 8 main test running as pid 2542 Check DSCR TM context switch: !! killing tm_resched_dscr !! child died by signal 15 failure: tm_resched_dscr Nothing interesting in dmesg / syslog: $ dmesg | tail [ 20.556968] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f0: link becomes ready [ 20.572182] tg3 0022:01:00.2 enP34p1s0f2: Link is up at 1000 Mbps, full duplex [ 20.572187] tg3 0022:01:00.2 enP34p1s0f2: Flow control is off for TX and off for RX [ 20.572191] tg3 0022:01:00.2 enP34p1s0f2: EEE is disabled [ 20.572201] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f2: link becomes ready [ 24.598633] kauditd_printk_skb: 19 callbacks suppressed [ 24.598640] audit: type=1400 audit(1676957767.768:31): apparmor="DENIED" operation="open" profile="/usr/sbin/ntpd" name="/snap/bin/" pid=2171 comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 [ 27.682671] loop3: detected capacity change from 0 to 8 [ 28.618195] fbcon: Taking over console [ 28.747706] Console: switching to colour frame buffer device 128x48 This issue does not exist with 5.15.0-60.66~20.04.1 test: tm_resched_dscr tags: git_version:bfd31f0-dirty Binding to cpu 8 main test running as pid 28806 Check DSCR TM context switch: OK success: tm_resched_dscr We didn't see this issue in Jammy 5.15 as Power8 was not supported there, and this test was skipped on the Power9 node (looks like because of the lack of PPC_FEATURE2_HTM) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2007908/+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