This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- cosmic' to 'verification-done-cosmic'. If the problem still exists, change the tag 'verification-needed-cosmic' to 'verification-failed- cosmic'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-cosmic -- 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/1812796 Title: TRACE_syscall.ptrace_syscall_dropped in seccomp from ubuntu_kernel_selftests failed on B/C PowerPC Status in ubuntu-kernel-tests: In Progress Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Bug description: == 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 == 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 for PowerPC. Although the faked (bug 1829363) and errno (bug 1829359) test will fail on PowerPC, it's actually helping us to nail down a real issue in our kernel. == Regression Potential == Low, changes limited to the testing tool in the 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 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 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 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 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 cpu_runmode: Could not retrieve current diagnostics mode, No kernel interface to firmware cpu_smt: SMT=8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1812796/+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
