The version in xenial-updates matches the version from the ppa that was
tested. This bug can be closed for xenial.
Thanks.
Cascardo.
** Changed in: crash (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1779187
Title:
Ubuntu 16.04.4: crash can not open dumps: "crash: invalid structure
member offset: task_struct_pids"
Status in Ubuntu on IBM z Systems:
In Progress
Status in crash package in Ubuntu:
Fix Released
Bug description:
Ubuntu 16.04 on IBM z: crash can not open dumps gathered on 4.13.0-39
crash: invalid structure member offset: task_struct_pids
FILE: task.c LINE: 2102 FUNCTION: refresh_hlist_task_table_v3()
---uname output---
Linux fvtc2i 4.13.0-39-generic #44~16.04.1-Ubuntu SMP Thu Apr 5 16:41:28 UTC
2018 s390x s390x s390x GNU/Linux
---Additional Hardware Info---
none
Machine Type = lpar type 3906, model 400 LM2
---Debugger---
A debugger is not configured
---Steps to Reproduce---
crash vmlinux-4.13.0-39-generic dump.201806150854
or
crash vmlinux-4.13.0-39-generic
Userspace tool common name: crash
The userspace tool has the following bit modes: 64
Userspace rpm: crash,crash-dbgsym 7.1.4-1ubuntu4.2 s390x
Userspace tool obtained from project website: na
We came across this issue while trying to extract traces from a vmcore
gathered on one of our Ubuntu 16.04 nodes running HWE kernel (4.13)
It seems crash cannot open this dump
# crash vmlinux-4.13.0-39-generic dump.201806150854
crash 7.1.4
Copyright (C) 2002-2015 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 <http://gnu.org/licenses/gpl.html>
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 "s390x-ibm-linux-gnu"...
WARNING: cannot determine MAX_PHYSMEM_BITS
please wait... (gathering task table data)
crash: invalid structure member offset: task_struct_pids
FILE: task.c LINE: 2102 FUNCTION: refresh_hlist_task_table_v3()
[/usr/bin/crash] error trace: 116ed1ed8 => 116ec4b14 => 116f25eec =>
116f25e48
this issue is 100% reproducible. An attempt to analyze the live system
is failing with exact the same error.
# crash vmlinux-4.13.0-39-generic
crash 7.1.4
...
WARNING: cannot determine MAX_PHYSMEM_BITS
crash: invalid structure member offset: task_struct_pids
FILE: task.c LINE: 2102 FUNCTION: refresh_hlist_task_table_v3()
[/usr/bin/crash] error trace: 1260d1ed8 => 1260c4b14 => 126125eec =>
126125e48
it seems that crash version 7.2.1 shipped with Ubuntu 18.04 can handle dumps
taken on kernel 4.13, so we have at least a workaround.
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