[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Andrew Cloke]

** Changed in: ubuntu-power-systems
   Status: Fix Committed => Fix Released

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Launchpad Bug Tracker]

This bug was fixed in the package crash - 7.2.1-1ubuntu2

---
crash (7.2.1-1ubuntu2) bionic; urgency=medium

  * Add patch to fix ipcs command (LP: #1765660).
  * Add test for ipcs command.

 -- Thadeu Lima de Souza Cascardo   Fri, 15 Feb
2019 06:58:17 -0200

** Changed in: crash (Ubuntu Bionic)
   Status: Fix Committed => Fix Released

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[bugproxy]

--- Comment From hbath...@in.ibm.com 2019-02-18 05:38 EDT---
With crash_7.2.1-1ubuntu2_ppc64el.deb from -proposed, ipcs command works fine:

crash> ipcs
SHMID_KERNEL KEY  SHMID  UID   PERMS BYTES  NATTCH STATUS
c001e0474900  0  0 644   80 2
c001e0478d00  32769  0 644   16384  2
c001e0470100  65538  0 644   2802

SEM_ARRAYKEY  SEMID  UID   PERMS NSEMS
c001f9827200 00a7 0  0 600   1

MSG_QUEUEKEY  MSQID  UID   PERMS USED-BYTES   MESSAGES
(none allocated)

crash>

** Tags removed: verification-needed verification-needed-bionic
** Tags added: verification-done verification-done-bionic

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Manoj Iyer]

** Changed in: ubuntu-power-systems
   Status: In Progress => Fix Committed

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Andy Whitcroft]

Hello bugproxy, or anyone else affected,

Accepted crash into bionic-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/crash/7.2.1-1ubuntu2
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: crash (Ubuntu Bionic)
   Status: Confirmed => Fix Committed

** Tags added: verification-needed verification-needed-bionic

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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Re: [Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Terry Rudd]

On 02/15/2019 10:46 AM, Thadeu Lima de Souza Cascardo wrote:
> So, we will get a package into bionic-proposed with only the necessary
> fix for the ipcs command. It's already in the SRU queue and waiting for
> approval, which we already asked for. So, just waiting for a review and
> this should be on -proposed by next week, when we will ask for
> verification.
> 
> Thanks.
> Cascardo.
> 
Perfect!

Thank you and have a good flight to Malta!
See you soon

Terry

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

So, we will get a package into bionic-proposed with only the necessary
fix for the ipcs command. It's already in the SRU queue and waiting for
approval, which we already asked for. So, just waiting for a review and
this should be on -proposed by next week, when we will ask for
verification.

Thanks.
Cascardo.

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

** Description changed:

  [Impact]
- Some analysis won't be possible on new kernels. In this case, ipcs command 
could not be used with the bionic GA kernel on ppc64le.
+ ipcs command could not be used with the bionic GA kernel on ppc64le.
  
  [Test Case]
- The ipcs command has been run after the fix was applied to crash, on a live 
amd64 system, with success.
- More tests will be done with the version of the package from -proposed on 
amd64 and ppc64el, including memory commands, and bt.
+ The ipcs command has been run after the fix was applied to crash, on live 
amd64, ppc64el and s390x system. In fact, the new upload introduces a test to 
verify this bug does not happen again.
  
  [Regression Potential]
- New crash versions may have bugs and some commands not work with older 
kernels. The smoke test helps a little, but more testing is desirable.
- 
- In case of regressions, analysis of kernel dumps will require that the
- crash file be moved to a system where crash doesn't have the regression.
- But live analysis won't be possible in that case.
+ We have only introduced the fix for this specific bug, also adding a test for 
it. It's less likely to be more broken than the current version on the release 
as an entire new upstream version could be.
  
  -
  
  == 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-tools1:1.6.3-1  
  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-tools1:2.0.16-1ubuntu1  
  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.
  Copyright (C) 2004, 2005, 2006, 2010  IBM Corporation
  Copyright (C) 1999-2006  Hewlett-Packard Co
  Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
  Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
  Copyright (C) 2005, 2011  NEC Corporation
  Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
  Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.
  This program is free software, covered by the GNU General Public License,
  and you are welcome to change it and/or distribute copies of it under
  certain conditions.  Enter "help copying" to see the conditions.
  This program has absolutely no warranty.  Enter "help warranty" for details.
  
  GNU gdb (GDB) 7.6
  Copyright (C) 2013 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later 
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  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: c03e56c7c600  [THREAD_INFO: c03e56cb]
   CPU: 41
     STATE: TASK_RUNNING (SYSRQ)
  
  crash> ?
  
  *  files  mach   repeat timer
  alias  foreachmodrunq   tree
  ascii  fuser  mount  search 

Re: [Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Terry Rudd]

On 12/21/2018 10:40 AM, Thadeu Lima de Souza Cascardo wrote:
> So, the SRU team asked for more detail on the tests. I will post it
> after January 15th.
> 

Thank you Thadeu! Have a great holiday break!

Terry

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

So, the SRU team asked for more detail on the tests. I will post it
after January 15th.

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Brian Murray]

** Description changed:

  [Impact]
  Some analysis won't be possible on new kernels. In this case, ipcs command 
could not be used with the bionic GA kernel on ppc64le.
  
  [Test Case]
  The ipcs command has been run after the fix was applied to crash, on a live 
amd64 system, with success.
- More tests have been done on amd64 and ppc64el, including memory commands, bt.
+ More tests will be done with the version of the package from -proposed on 
amd64 and ppc64el, including memory commands, and bt.
  
  [Regression Potential]
- New crash versions may have bugs and some commands not work with older 
kernels. The smoke test helps a little, but more testing may be desirable.
+ New crash versions may have bugs and some commands not work with older 
kernels. The smoke test helps a little, but more testing is desirable.
  
  In case of regressions, analysis of kernel dumps will require that the
  crash file be moved to a system where crash doesn't have the regression.
  But live analysis won't be possible in that case.
  
  -
  
  == 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-tools1:1.6.3-1  
  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-tools1:2.0.16-1ubuntu1  
  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.
  Copyright (C) 2004, 2005, 2006, 2010  IBM Corporation
  Copyright (C) 1999-2006  Hewlett-Packard Co
  Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
  Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
  Copyright (C) 2005, 2011  NEC Corporation
  Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
  Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.
  This program is free software, covered by the GNU General Public License,
  and you are welcome to change it and/or distribute copies of it under
  certain conditions.  Enter "help copying" to see the conditions.
  This program has absolutely no warranty.  Enter "help warranty" for details.
  
  GNU gdb (GDB) 7.6
  Copyright (C) 2013 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later 
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  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: c03e56c7c600  [THREAD_INFO: c03e56cb]
   CPU: 41
     STATE: TASK_RUNNING (SYSRQ)
  
  crash> ?
  
  *  files  mach   repeat timer
  alias  foreachmodrunq   tree
  ascii  fuser  mount  search union
  bt gdbnetsetvm
  btop   help   p  sigvtop
  devipcs   ps struct waitq
  disirqpte   

Re: [Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Terry Rudd]

On 12/18/2018 06:35 AM, Thadeu Lima de Souza Cascardo wrote:
> Can someone from the SRU team approve this package in the queue?
> 
> Cascardo.
> 
Thank you Thadeu!

Terry

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

Can someone from the SRU team approve this package in the queue?

Cascardo.

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Dimitri John Ledkov]

Ok, so we are now awaiting for this to be accepted into the -proposed
from the queue, as I do see crash in bionic unapproved queue at
https://launchpad.net/ubuntu/bionic/+queue?queue_state=1_text=crash

** Changed in: crash (Ubuntu Bionic)
   Status: Incomplete => Confirmed

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

I have done some manual testing on both amd64 and ppc64el, with mem
commands, backtrace, and other ones.

Cascardo.

** Description changed:

  [Impact]
  Some analysis won't be possible on new kernels. In this case, ipcs command 
could not be used with the bionic GA kernel on ppc64le.
  
  [Test Case]
  The ipcs command has been run after the fix was applied to crash, on a live 
amd64 system, with success.
+ More tests have been done on amd64 and ppc64el, including memory commands, bt.
  
  [Regression Potential]
  New crash versions may have bugs and some commands not work with older 
kernels. The smoke test helps a little, but more testing may be desirable.
  
  In case of regressions, analysis of kernel dumps will require that the
  crash file be moved to a system where crash doesn't have the regression.
  But live analysis won't be possible in that case.
- 
  
  -
  
  == 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-tools1:1.6.3-1  
  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-tools1:2.0.16-1ubuntu1  
  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.
  Copyright (C) 2004, 2005, 2006, 2010  IBM Corporation
  Copyright (C) 1999-2006  Hewlett-Packard Co
  Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
  Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
  Copyright (C) 2005, 2011  NEC Corporation
  Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
  Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.
  This program is free software, covered by the GNU General Public License,
  and you are welcome to change it and/or distribute copies of it under
  certain conditions.  Enter "help copying" to see the conditions.
  This program has absolutely no warranty.  Enter "help warranty" for details.
  
  GNU gdb (GDB) 7.6
  Copyright (C) 2013 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later 
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  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: c03e56c7c600  [THREAD_INFO: c03e56cb]
   CPU: 41
     STATE: TASK_RUNNING (SYSRQ)
  
  crash> ?
  
  *  files  mach   repeat timer
  alias  foreachmodrunq   tree
  ascii  fuser  mount  search union
  bt gdbnetsetvm
  btop   help   p  sigvtop
  devipcs   ps struct waitq
  disirqpteswap   whatis
  eval   kmem   ptob   symwr
  exit   list   ptov   sys  

[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Steve Langasek]

The bug description now says "but more testing may be desirable."
Please be explicit and detailed, here.  We need a test plan for what
that testing is going to be, otherwise there's no reason to expect that
it will happen.

** Changed in: crash (Ubuntu Bionic)
   Status: In Progress => Incomplete

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

** Description changed:

  [Impact]
- Some analysis won't be possible on new kernels (hwe-edge on xenial, for 
example; or the standard bionic kernel).
+ Some analysis won't be possible on new kernels. In this case, ipcs command 
could not be used with the bionic GA kernel on ppc64le.
  
  [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.
+ New crash versions may have bugs and some commands not work with older 
kernels. The smoke test helps a little, but more testing may be desirable.
+ 
+ In case of regressions, analysis of kernel dumps will require that the
+ crash file be moved to a system where crash doesn't have the regression.
+ But live analysis won't be possible in that case.
+ 
  
  -
- 
  
  == 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-tools1:1.6.3-1  
  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-tools1:2.0.16-1ubuntu1  
  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.
  Copyright (C) 2004, 2005, 2006, 2010  IBM Corporation
  Copyright (C) 1999-2006  Hewlett-Packard Co
  Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
  Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
  Copyright (C) 2005, 2011  NEC Corporation
  Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
  Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.
  This program is free software, covered by the GNU General Public License,
  and you are welcome to change it and/or distribute copies of it under
  certain conditions.  Enter "help copying" to see the conditions.
  This program has absolutely no warranty.  Enter "help warranty" for details.
  
  GNU gdb (GDB) 7.6
  Copyright (C) 2013 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later 
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  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: c03e56c7c600  [THREAD_INFO: c03e56cb]
   CPU: 41
     STATE: TASK_RUNNING (SYSRQ)
  
  crash> ?
  
  *  files  mach   repeat timer
  alias  foreachmodrunq   tree
  ascii  fuser  mount  search union
  bt gdbnetsetvm
  btop   help   p  sigvtop
  devipcs   ps struct waitq
  disirqpteswap   

[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

Sorry about the lying in the regression potential. It probably referred
to a previous backport attempt, that only applied the respective patch.
As we discussed a few months ago, kexec/kdump/crash would be backported
because of their relationship with the linux package, and its siblings
linux-lts, linux-hwe, etc. That doesn't mean we shouldn't or can't test
the packages more thoroughly. That's why I introduced ADT support to
kdump, and would like to work on more testing for those packages. Right
now, I can do more manual testing for this, and add my results to the
bug.

Thanks for bringing this up.
Cascardo.

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  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Łukasz Zemczak]

Since the performed SRU is a straight backport from what is in cosmic, I
would prefer if the test case included more than just checking the ipcs
command. Maybe some other more general testing scenarios to make sure we
didn't regress? There's tons of changes (4296 insertions(+), 884
deletions(-)) in comparison to what was in bionic before. Also, looks
like the Regression Potential field is lying, quoting: "The patch,
however, should touch only the broken command, and has been tested." -
the SRU here touches far more than just the broken command I guess? Or
does it not?

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Manoj Iyer]

Sorry for all the confusion I might have created. cascardo, thanks for
fixing my errors.

** Changed in: ubuntu-power-systems
   Status: Fix Released => In Progress

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  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

Okay, so Manoj was confused as he looked into a linux commit, while we
are talking about crash here. That explains the confusion. On the IBM
side, it seems to have been closed either because the fix has already
landed on cosmic, or because of the ppa test.

Cascardo.

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  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

Yeah, this doesn't sound right. Bionic has 7.2.1-1, while the fix has
been applied to 7.2.2-1. The verification mentioned on comment #7 was
against a ppa.

We can't ask IBM to properly verify it on bionic until we get this
package on -proposed. Let me move the task back to In Progress.

Thanks.
Cascardo.

** Changed in: crash (Ubuntu Bionic)
   Status: Fix Released => In Progress

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Robie Basak]

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?

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Manoj Iyer]

Looks like the patch mentioned in this bug is already present in bionic

0a835c4f090a Reimplement IDR and IDA using the radix tree

Closing out the bionic track as fix released.

** Changed in: crash (Ubuntu Bionic)
   Status: In Progress => Fix Released

** Changed in: ubuntu-power-systems
   Status: In Progress => Fix Released

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

There is a package on ppa:cascardo/ppa that should fix the problem. Can
you test it and report back?

Cascardo.

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  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

I have been working on the backport for this to bionic and xenial, but
in order to do so, we are taking care of some build failures on the
latest version that we are going to add to cosmic. I'll update when
there is more progress on that.

Regards.
Cascardo.

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  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Manoj Iyer]

** Changed in: crash (Ubuntu Artful)
   Status: New => Won't Fix

** Changed in: crash (Ubuntu Xenial)
   Status: New => Won't Fix

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  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Frank Heimes]

** Changed in: ubuntu-power-systems
   Status: Triaged => In Progress

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  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

** Changed in: crash (Ubuntu Bionic)
   Status: New => In Progress

** Changed in: crash (Ubuntu Bionic)
 Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)

** Changed in: crash (Ubuntu Bionic)
   Importance: Undecided => High

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Launchpad Bug Tracker]

This bug was fixed in the package crash - 7.2.1-1ubuntu1

---
crash (7.2.1-1ubuntu1) cosmic; urgency=medium

  * Add patch to fix ipcs command (LP: #1765660).

 -- Thadeu Lima de Souza Cascardo   Mon, 14 May
2018 16:05:51 -0300

** Changed in: crash (Ubuntu Cosmic)
   Status: New => Fix Released

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Tyler Hicks]

** Also affects: crash (Ubuntu Cosmic)
   Importance: High
 Assignee: Canonical Kernel Team (canonical-kernel-team)
   Status: New

** Also affects: crash (Ubuntu Artful)
   Importance: Undecided
   Status: New

** Also affects: crash (Ubuntu Bionic)
   Importance: Undecided
   Status: New

** Also affects: crash (Ubuntu Xenial)
   Importance: Undecided
   Status: New

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Thadeu Lima de Souza Cascardo]

** Description changed:

+ [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-tools1:1.6.3-1  
  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-tools1:2.0.16-1ubuntu1  
  ppc64el  tools to support fast kexec reboots
- root@ltc-briggs2:~# 
- 
- 
- .0-13-generic dump.201803272257 03272257# crash 
/usr/lib/debug/boot/vmlinux-4.15.
+ 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.
  Copyright (C) 2004, 2005, 2006, 2010  IBM Corporation
  Copyright (C) 1999-2006  Hewlett-Packard Co
  Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
  Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
  Copyright (C) 2005, 2011  NEC Corporation
  Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
  Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.
  This program is free software, covered by the GNU General Public License,
  and you are welcome to change it and/or distribute copies of it under
  certain conditions.  Enter "help copying" to see the conditions.
  This program has absolutely no warranty.  Enter "help warranty" for details.
-  
+ 
  GNU gdb (GDB) 7.6
  Copyright (C) 2013 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later 
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  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
+   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: c03e56c7c600  [THREAD_INFO: c03e56cb]
-  CPU: 41
-STATE: TASK_RUNNING (SYSRQ)
+    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: c03e56c7c600  [THREAD_INFO: c03e56cb]
+  CPU: 41
+    STATE: TASK_RUNNING (SYSRQ)
  
  crash> ?
  
- *  files  mach   repeat timer  
- alias  foreachmodrunq   tree   
- ascii  fuser  mount  search 

[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[bugproxy]

--- Comment From bren...@br.ibm.com 2018-04-24 15:08 EDT---
Created a bug upstream at https://github.com/crash-utility/crash/issues/23

** Bug watch added: github.com/crash-utility/crash/issues #23
   https://github.com/crash-utility/crash/issues/23

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Manoj Iyer]

** Changed in: crash (Ubuntu)
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) => 
Canonical Kernel Team (canonical-kernel-team)

** Changed in: crash (Ubuntu)
   Importance: Undecided => High

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Frank Heimes]

** Changed in: ubuntu-power-systems
   Status: New => Triaged

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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[Bug 1765660] Re: Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid structure member offset" in crash prompt.

[Andrew Cloke]

** Also affects: ubuntu-power-systems
   Importance: Undecided
   Status: New

** Changed in: ubuntu-power-systems
   Importance: Undecided => High

** Changed in: ubuntu-power-systems
 Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)

** Tags added: triage-g

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Title:
  Ubuntu 18.04 [ briggs ]: "ipcs" command fails with error "invalid
  structure member offset" in crash prompt.

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