This is in the SRU queue for Bionic. Does it need rejecting from there if the bug is already fixed in Bionic? If not, then please could you clarify and fix the bug statuses?
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to crash in Ubuntu. https://bugs.launchpad.net/bugs/1765660 Title: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt. Status in The Ubuntu-power-systems project: Fix Released Status in crash package in Ubuntu: Fix Released Status in crash source package in Xenial: Won't Fix Status in crash source package in Artful: Won't Fix Status in crash source package in Bionic: Fix Released Status in crash source package in Cosmic: Fix Released Bug description: [Impact] Some analysis won't be possible on new kernels (hwe-edge on xenial, for example; or the standard bionic kernel). [Test Case] The ipcs command has been run after the fix was applied to crash, on a live amd64 system, with success. [Regression Potential] Analysis of crashed kernels will require that the crash file be moved to a system where crash doesn't have the regression. The patch, however, should touch only the broken command, and has been tested. --------------------------------- == Comment: #0 - PAVITHRA R. PRAKASH <> - 2018-03-29 01:14:47 == ---Problem Description--- Ubuntu 18.04: "ipcs" command fails with error "invalid structure member offset" in crash prompt. ---Environment-- System Name : ltc-briggs2 Model/Type : P8 Platform : BML ---Uname output--- root@ltc-briggs2:~# uname -a Linux ltc-briggs2 4.15.0-13-generic #14-Ubuntu SMP Sat Mar 17 13:43:15 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux ---Steps to reproduce-- 1. Configure kdump. 2. Trigger crash 3. run crash on captured dump ---Logs---- root@ltc-briggs2:~# dpkg -l|grep makedumpfile ii makedumpfile 1:1.6.3-1 ppc64el VMcore extraction tool root@ltc-briggs2:~# dpkg -l|grep crash ii apport 2.20.9-0ubuntu1 all automatically generate crash reports for debugging ii crash 7.2.1-1 ppc64el kernel debugging utility, allowing gdb like syntax ii kdump-tools 1:1.6.3-1 ppc64el scripts and tools for automating kdump (Linux crash dumps) ii python3-apport 2.20.9-0ubuntu1 all Python 3 library for Apport crash report handling root@ltc-briggs2:~# dpkg -l|grep kexec ii kexec-tools 1:2.0.16-1ubuntu1 ppc64el tools to support fast kexec reboots root@ltc-briggs2:~# .0-13-generic dump.201803272257 03272257# crash /usr/lib/debug/boot/vmlinux-4.15. crash 7.2.1 Copyright (C) 2002-2017 Red Hat, Inc. 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This GDB was configured as "powerpc64le-unknown-linux-gnu"... KERNEL: /usr/lib/debug/boot/vmlinux-4.15.0-13-generic DUMPFILE: dump.201803272257 [PARTIAL DUMP] CPUS: 160 DATE: Tue Mar 27 22:56:58 2018 UPTIME: 00:04:07 LOAD AVERAGE: 1.06, 0.53, 0.20 TASKS: 1734 NODENAME: ltc-briggs2 RELEASE: 4.15.0-13-generic VERSION: #14-Ubuntu SMP Sat Mar 17 13:43:15 UTC 2018 MACHINE: ppc64le (2926 Mhz) MEMORY: 512 GB PANIC: "sysrq: SysRq : Trigger a crash" PID: 7420 COMMAND: "bash" TASK: c000003e56c7c600 [THREAD_INFO: c000003e56cb0000] CPU: 41 STATE: TASK_RUNNING (SYSRQ) crash> ? * files mach repeat timer alias foreach mod runq tree ascii fuser mount search union bt gdb net set vm btop help p sig vtop dev ipcs ps struct waitq dis irq pte swap whatis eval kmem ptob sym wr exit list ptov sys q extend log rd task crash version: 7.2.1 gdb version: 7.6 For help on any command above, enter "help <command>". For help on input options, enter "help input". For help on output options, enter "help output". crash> ipcs SHMID_KERNEL KEY SHMID UID PERMS BYTES NATTCH STATUS ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() [/usr/bin/crash] error trace: 70374748930 => 703747482d8 => 703746e8e98 => 703745b1488 ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() crash> q == Comment: #3 - PAVITHRA R. PRAKASH <> - 2018-04-09 00:36:52 == (In reply to comment #1) > Hi Pavithra, > > Have you checked in older kernel versions, whether "ipcs" command > was working ...I think, it is because there were too many changes > to kernel's IPC code over several kernel versions..possibly crash tool > don't have the updated changes w.r.t new kernel IPC code > > also please check if following "options" are not working: > >>> > char *help_ipcs[] = { > "ipcs", > "System V IPC facilities", > "[-smMq] [-n pid|task] [id | addr]", > > " This command provides information on the System V IPC facilities. With > no", > " arguments, the command will display kernel usage of all three > factilities.", > " ", > " -s show semaphore arrays.", > " -m show shared memory segments.", > " -M show shared memory segments with additional details.", > " -q show message queues.", > " id show the data associated with this resource ID.", > " addr show the data associated with this virtual address of a", > " shmid_kernel, sem_array or msq_queue.", > "", > " For kernels supporting namespaces, the -n option may be used to", > " display the IPC facilities with respect to the namespace of a", > " specified task:\n", > " -n pid a process PID.", > " -n task a hexadecimal task_struct pointer.", > >>> > > Thanks!! Issue is observed even with old kernel. KERNEL: /usr/lib/debug/boot/vmlinux-4.15.0-12-generic DUMPFILE: dump.201804090031 [PARTIAL DUMP] CPUS: 160 DATE: Mon Apr 9 00:30:53 2018 UPTIME: 00:04:24 LOAD AVERAGE: 2.75, 1.56, 0.64 TASKS: 1738 NODENAME: ltc-briggs2 RELEASE: 4.15.0-12-generic VERSION: #13-Ubuntu SMP Wed Mar 7 21:37:03 UTC 2018 MACHINE: ppc64le (2926 Mhz) MEMORY: 512 GB PANIC: "sysrq: SysRq : Trigger a crash" PID: 6995 COMMAND: "bash" TASK: c000003f70dcfd00 [THREAD_INFO: c000003f70e78000] CPU: 64 STATE: TASK_RUNNING (SYSRQ) crash> ipcs SHMID_KERNEL KEY SHMID UID PERMS BYTES NATTCH STATUS ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() [/usr/bin/crash] error trace: 198c7e38930 => 198c7e382d8 => 198c7dd8e98 => 198c7ca1488 ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() crash> --------------------------------------------------------------------------------------------------------------------------------- crash> ipcs SHMID_KERNEL KEY SHMID UID PERMS BYTES NATTCH STATUS ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() [/usr/bin/crash] error trace: 69b16c28930 => 69b16c282d8 => 69b16bc8e98 => 69b16a91488 ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() crash> ipcs -s SEM_ARRAY KEY SEMID UID PERMS NSEMS ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() [/usr/bin/crash] error trace: 69b16c2ace0 => 69b16c282d8 => 69b16bc8e98 => 69b16a91488 ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() crash> ipcs -m SHMID_KERNEL KEY SHMID UID PERMS BYTES NATTCH STATUS ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() [/usr/bin/crash] error trace: 69b16c28930 => 69b16c282d8 => 69b16bc8e98 => 69b16a91488 ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() crash> ipcs -M ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() [/usr/bin/crash] error trace: 69b16c28930 => 69b16c282d8 => 69b16bc8e98 => 69b16a91488 ipcs: invalid structure member offset: idr_top FILE: ipcs.c LINE: 628 FUNCTION: idr_find() crash> ipcs -q MSG_QUEUE KEY MSQID UID PERMS USED-BYTES MESSAGES (none allocated) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1765660/+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
