** Description changed: - This test failed on a Power8 node with Bionic kernel: + == SRU Justification == + The TRACE_syscall.ptrace_syscall_dropped test in seccomp from ubuntu_kernel_selftests will fail on a Power8 node with B/C kernel. [ RUN ] TRACE_syscall.ptrace_syscall_dropped seccomp_bpf.c:1808:TRACE_syscall.ptrace_syscall_dropped:Expected 1 (1) == syscall(286) (18446744073709551615) TRACE_syscall.ptrace_syscall_dropped: Test failed at step #13 [ FAIL ] TRACE_syscall.ptrace_syscall_dropped - Please find the attachment for the complete test log. + == Fix == + * ed5f1326 (selftests/seccomp: Enhance per-arch ptrace syscall skip tests) + + This patch can be cherry-picked into B/C, and it's already in Disco. + The ptrace_syscall_dropped will be changed into ptrace_syscall_faked, and a new ptrace_syscall_errno test will be added. + + == Test == + Patch tested with different arch (amd64 / power8 / arm64 / i386), the new test will pass on them except Power8. + + + == Regression Potential == + Low, changes limited to the testing tool in the kernel. + Although the faked and errno test will fail on PowerPC, it's actually helping us to find out a real issue in our kernel. + 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 22 04:30 seq - crw-rw---- 1 root audio 116, 33 Jan 22 04:30 timer + total 0 + crw-rw---- 1 root audio 116, 1 Jan 22 04:30 seq + crw-rw---- 1 root audio 116, 33 Jan 22 04:30 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: Tue Jan 22 06:09:34 2019 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' Lsusb: - Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub - Bus 003 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 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub + Bus 003 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 001: ID 1d6b:0002 Linux Foundation 2.0 root hub PciMultimedia: - + ProcFB: - + ProcKernelCmdLine: root=/dev/mapper/mpath0-part2 ro console=hvc0 ProcLoadAvg: 0.13 0.34 0.23 1/1487 35882 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 = 20 cpu_coreson: Number of cores online = 20 cpu_dscr: DSCR is 0 cpu_freq: - min: 3.694 GHz (cpu 152) - max: 3.694 GHz (cpu 1) - avg: 3.694 GHz + min: 3.694 GHz (cpu 152) + max: 3.694 GHz (cpu 1) + avg: 3.694 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=8
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1812796 Title: TRACE_syscall.ptrace_syscall_dropped in seccomp from ubuntu_kernel_selftests failed on B/C PowerPC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1812796/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
