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 1855100 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/1855100 Title: bpf self tests break 5.4.0-7-generic on power8 system Status in linux package in Ubuntu: Incomplete Bug description: Running ADT tests on POWER8 5.4.0-7-generic (gulpin) causes reboot of the bare metal system. Last output seen while ssh'd into the box: 11:52:34 DEBUG| [stdout] ok 6 selftests: net: tls 11:52:34 DEBUG| [stdout] # selftests: net: run_netsocktests 11:52:34 DEBUG| [stdout] # -------------------- 11:52:34 DEBUG| [stdout] # running socket test 11:52:34 DEBUG| [stdout] # -------------------- 11:52:34 DEBUG| [stdout] # [PASS] 11:52:34 DEBUG| [stdout] ok 7 selftests: net: run_netsocktests 11:52:34 DEBUG| [stdout] # selftests: net: run_afpackettests 11:52:34 DEBUG| [stdout] # -------------------- 11:52:34 DEBUG| [stdout] # running psock_fanout test 11:52:34 DEBUG| [stdout] # -------------------- client_loop: send disconnect: Broken pipe last output in (truncated) nohup output: f -emit-llvm -c progs/pyperf180.c -o - || \ 11:52:15 DEBUG| [stdout] echo "clang failed") | \ 11:52:15 DEBUG| [stdout] llc -march=bpf -mattr=+alu32 -mcpu=probe \ 11:52:15 DEBUG| [stdout] -filetype=obj -o /home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/bpf/alu32/pyperf180.o this suggests the bpf selftests are causing the breakage. last output logged in /var/log/dmesg.log : Dec 4 11:50:17 gulpin kernel: [ 5031.966277] Injecting error (-12) to MEM_GOING_OFFLINE Dec 4 11:50:17 gulpin kernel: [ 5031.975298] Injecting error (-12) to MEM_GOING_OFFLINE Dec 4 11:50:17 gulpin kernel: [ 5031.984300] Injecting error (-12) to MEM_GOING_OFFLINE Dec 4 11:50:17 gulpin kernel: [ 5031.993389] Injecting error (-12) to MEM_GOING_OFFLINE Dec 4 11:50:17 gulpin kernel: [ 5032.002407] Injecting error (-12) to MEM_GOING_OFFLINE next entries on dmesg.log show machine had rebooted. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1855100/+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