** Description changed: - This issue was only spotted on Power9 system "balter", for Power8 - system, it has passed with this test: + == Justification == + The copy_unaligned / paste_unaligned / paste_last_unaligned test in powerpc/alignment will fail on a Power9 node as which implements ISA 3.0B, but the test was designed base on ISA 3.0. - TAP version 13 - selftests: copy_unaligned - ======================================== - test: test_copy_unaligned - tags: git_version:unknown - !! child died by signal 4 - failure: test_copy_unaligned - not ok 1..1 selftests: copy_unaligned [FAIL] - selftests: copy_first_unaligned - ======================================== - test: test_copy_first_unaligned - tags: git_version:unknown - success: test_copy_first_unaligned - ok 1..2 selftests: copy_first_unaligned [PASS] - selftests: paste_unaligned - ======================================== - test: test_paste_unaligned - tags: git_version:unknown - !! child died by signal 4 - failure: test_paste_unaligned - not ok 1..3 selftests: paste_unaligned [FAIL] - selftests: paste_last_unaligned - ======================================== - test: test_paste_last_unaligned - tags: git_version:unknown - !! child died by signal 4 - failure: test_paste_last_unaligned - not ok 1..4 selftests: paste_last_unaligned [FAIL] + From commit message: + This is a test of the ISA 3.0 "copy" instruction. That instruction has + an L field, which if set to 1 specifies that "the instruction + identifies the beginning of a move group" (pp 858). That's also + referred to as "copy first" vs "copy". + + In ISA 3.0B the copy instruction does not have an L field, and the + corresponding bit in the instruction must be set to 1. + + This test is generating a "copy" instruction, not a "copy first", and + so on Power9 (which implements 3.0B), this results in an illegal + instruction. + + So just drop the test entirely. We still have copy_first_unaligned to + test the "copy first" behaviour. + + == Fix == + * 83039f22 (selftests/powerpc: Remove Power9 copy_unaligned test) + + Patch can be cherry-picked into C, for Bionic it needs patches for bug + 1828935 to land first to make it a clean cherry-pick. + + It's already landed in D and onward. + + == Test == + Tested on a Power9 server with Cosmic, the broken tests will be removed correctly. + + == Regression Potential == + Low. + Code change limited to testing tools and just removing broken tests. We still have copy_first_unaligned to test the "copy first" behaviour. + + + == Original Bug Report == + This issue was only spotted on Power9 system "balter", for Power8 system, it has passed (skipped, and marked as passed) with this test: + + TAP version 13 + selftests: copy_unaligned + ======================================== + test: test_copy_unaligned + tags: git_version:unknown + !! child died by signal 4 + failure: test_copy_unaligned + not ok 1..1 selftests: copy_unaligned [FAIL] + selftests: copy_first_unaligned + ======================================== + test: test_copy_first_unaligned + tags: git_version:unknown + success: test_copy_first_unaligned + ok 1..2 selftests: copy_first_unaligned [PASS] + selftests: paste_unaligned + ======================================== + test: test_paste_unaligned + tags: git_version:unknown + !! child died by signal 4 + failure: test_paste_unaligned + not ok 1..3 selftests: paste_unaligned [FAIL] + selftests: paste_last_unaligned + ======================================== + test: test_paste_last_unaligned + tags: git_version:unknown + !! child died by signal 4 + failure: test_paste_last_unaligned + not ok 1..4 selftests: paste_last_unaligned [FAIL] ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-43-generic 4.15.0-43.46 ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18 Uname: Linux 4.15.0-43-generic ppc64le AlsaDevices: - total 0 - crw-rw---- 1 root audio 116, 1 Jan 24 06:50 seq - crw-rw---- 1 root audio 116, 33 Jan 24 06:50 timer + total 0 + crw-rw---- 1 root audio 116, 1 Jan 24 06:50 seq + crw-rw---- 1 root audio 116, 33 Jan 24 06:50 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.5 Architecture: ppc64el ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Thu Jan 24 07:05:20 2019 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' Lsusb: - Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub - Bus 001 Device 003: ID 0451:80ff Texas Instruments, Inc. - Bus 001 Device 004: ID 0557:2419 ATEN International Co., Ltd - Bus 001 Device 002: ID 0557:7000 ATEN International Co., Ltd Hub - Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub + Bus 001 Device 003: ID 0451:80ff Texas Instruments, Inc. + Bus 001 Device 004: ID 0557:2419 ATEN International Co., Ltd + Bus 001 Device 002: ID 0557:7000 ATEN International Co., Ltd Hub + Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub PciMultimedia: - + ProcFB: 0 astdrmfb ProcKernelCmdLine: root=UUID=acd1a0d7-f6fc-4130-928c-c8b11ad6e4be ro console=hvc0 ProcLoadAvg: 1.24 0.89 0.66 3/1412 8319 ProcLocks: - 1: POSIX ADVISORY WRITE 3876 00:17:569 0 EOF - 2: FLOCK ADVISORY WRITE 3556 00:17:497 0 EOF - 3: FLOCK ADVISORY WRITE 4090 00:17:596 0 EOF - 4: POSIX ADVISORY WRITE 3955 00:17:571 0 EOF - 5: POSIX ADVISORY WRITE 1823 00:17:348 0 EOF + 1: POSIX ADVISORY WRITE 3876 00:17:569 0 EOF + 2: FLOCK ADVISORY WRITE 3556 00:17:497 0 EOF + 3: FLOCK ADVISORY WRITE 4090 00:17:596 0 EOF + 4: POSIX ADVISORY WRITE 3955 00:17:571 0 EOF + 5: POSIX ADVISORY WRITE 1823 00:17:348 0 EOF ProcSwaps: - Filename Type Size Used Priority - /swap.img file 8388544 0 -2 + Filename Type Size Used Priority + /swap.img file 8388544 0 -2 ProcVersion: Linux version 4.15.0-43-generic (buildd@bos02-ppc64el-020) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #46-Ubuntu SMP Thu Dec 6 14:43:28 UTC 2018 RelatedPackageVersions: - linux-restricted-modules-4.15.0-43-generic N/A - linux-backports-modules-4.15.0-43-generic N/A - linux-firmware 1.173.3 + linux-restricted-modules-4.15.0-43-generic N/A + linux-backports-modules-4.15.0-43-generic N/A + linux-firmware 1.173.3 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) VarLogDump_list: total 0 cpu_cores: Number of cores present = 40 cpu_coreson: Number of cores online = 40 cpu_dscr: DSCR is 3 cpu_freq: - min: 2.862 GHz (cpu 159) - max: 2.863 GHz (cpu 1) - avg: 2.862 GHz + min: 2.862 GHz (cpu 159) + max: 2.863 GHz (cpu 1) + avg: 2.862 GHz cpu_runmode: - Could not retrieve current diagnostics mode, - No kernel interface to firmware + Could not retrieve current diagnostics mode, + No kernel interface to firmware cpu_smt: SMT=4
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1813118 Title: alignment test in powerpc from ubuntu_kernel_selftests failed on B/C Power9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1813118/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
