I built Artful and Xenial test kernels with the back port. The test kernels can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1762928/xenial http://kernel.ubuntu.com/~jsalisbury/lp1762928/artful Can you test this kernel and see if it resolves this bug? Note, to test this kernel, you need to install both the linux-image and linux-image-extra .deb packages. Thanks in advance! -- 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/1762928 Title: [LTC Test] Ubuntu 18.04: tm_trap_test failed on P8 compat mode guest Status in The Ubuntu-power-systems project: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: In Progress Status in linux source package in Artful: In Progress Status in linux source package in Bionic: Fix Released Bug description: ---Problem Description--- tm_trap_test failed on P8 compat mode [16.04.04 daily build as well bionic ] guests on a P9 host running bionic final beta version. Contact Information = srikanth/bssrika...@in.ibm.com ---uname output--- 16.04.04 Guest running in P8compat mode: Linux guest 4.15.0-15-generic #16~16.04.1-Ubuntu SMP Thu Apr 5 12:18:22 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux 18.04 guest running in P8compat mode: Linux ubuntu 4.15.0-15-generic #16-Ubuntu SMP Wed Apr 4 13:57:51 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux Machine Type = boston-LC ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Log into P9 Ubuntu 18.04 host, take console of guest `srikanth_ubuntu160404` 2. Run TM selftests git clone --depth 1 https://github.com/torvalds/linux.git;cd linux/tools/testing/selftests/powerpc/;git log --oneline -1;make;make -C tm run_tests We will observe one of the tm tests failing, mentioned below: selftests: tm-trap ======================================== test: tm_trap_test tags: git_version:c18bb39 Little-Endian machine detected. Checking if endianness flips inadvertently on trap in TM... yes! failure: tm_trap_test not ok 1..11 selftests: tm-trap [FAIL] Expected result: All tm selftests should have been pass on the P8 compat guest.. giventhat we had TM workaround patches in latest Ubuntu BIONIC host kernel Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for srikanth/bssrika...@in.ibm.com: -Attach sysctl -a output output to the bug. == Comment: #2 - SRIKANTH AITHAL <bssrika...@in.ibm.com> - 2018-04-10 01:32:00 == == Comment: #3 - SRIKANTH AITHAL <bssrika...@in.ibm.com> - 2018-04-10 01:33:41 == == Comment: #4 - SRIKANTH AITHAL <bssrika...@in.ibm.com> - 2018-04-10 01:34:02 == Please pick `1c200e63d055 ("powerpc/tm: Fix endianness flip on trap")` ie. the commit that the test was written for To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1762928/+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
