*** This bug is a duplicate of bug 1429250 ***
https://bugs.launchpad.net/bugs/1429250
Fixed released already in 14.04 per duplicated bug (#1429250)
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https://bugs.launchpad.net/bugs/1463653
Title:
crash subcommand bt -a displays incomplete information
Status in makedumpfile package in Ubuntu:
New
Bug description:
---Steps to Reproduce---
1) Using latest daily ISO install 14.04.02 as a Power VM guest. The LPAR has
vTPM functionality enabled.
2) Upgrade the kernel to 3.19 level (3.19.0-18-generic)
3) Configure kdump. A fix is required to configure kdump. Refer to defect
(https://bugzilla.linux.ibm.com/show_bug.cgi?id=125712)
4) Trigger a dump. Dump is captured successfully.
5) Install dbgsym package for the kernel
6) Use crash to analyze the dump.
Crash tool is able to read the dump. But it fails to list back trace
for CPUS using bt command.
# crash /usr/lib/debug/boot/vmlinux-3.19.0-18-generic
dump.201506040624
crash 7.0.3
Copyright (C) 2002-2013 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 "powerpc64le-unknown-linux-gnu"...
KERNEL: /usr/lib/debug/boot/vmlinux-3.19.0-18-generic
DUMPFILE: dump.201506040624 [PARTIAL DUMP]
CPUS: 16
DATE: Wed Dec 31 19:00:00 1969
UPTIME: 00:02:32
LOAD AVERAGE: 0.01, 0.01, 0.01
TASKS: 245
NODENAME: alp9
RELEASE: 3.19.0-18-generic
VERSION: #18~14.04.1-Ubuntu SMP Wed May 20 09:40:36 UTC 2015
MACHINE: ppc64le (3724 Mhz)
MEMORY: 100 GB
PANIC: "Oops: System Reset, sig: 6 [#1]" (check log for details)
PID: 0
COMMAND: "swapper/0"
TASK: c0000000013cca80 (1 of 16) [THREAD_INFO: c000000001448000]
CPU: 0
STATE: TASK_RUNNING (PANIC)
crash> bt -a
PID: 0 TASK: c0000000013cca80 CPU: 0 COMMAND: "swapper/0"
PID: 0 TASK: c0000003dbf3b3c0 CPU: 1 COMMAND: "swapper/1"
PID: 0 TASK: c0000003dbf39f00 CPU: 2 COMMAND: "swapper/2"
PID: 0 TASK: c0000003dbf38a40 CPU: 3 COMMAND: "swapper/3"
PID: 0 TASK: c0000003dbf37580 CPU: 4 COMMAND: "swapper/4"
PID: 0 TASK: c0000003dbf360c0 CPU: 5 COMMAND: "swapper/5"
PID: 0 TASK: c0000003dbf34c00 CPU: 6 COMMAND: "swapper/6"
PID: 0 TASK: c0000003dbf33740 CPU: 7 COMMAND: "swapper/7"
PID: 0 TASK: c0000003dbf32280 CPU: 8 COMMAND: "swapper/8"
PID: 0 TASK: c0000003dbf30dc0 CPU: 9 COMMAND: "swapper/9"
PID: 0 TASK: c0000003dbf2f900 CPU: 10 COMMAND: "swapper/10"
PID: 0 TASK: c0000003dbf2e440 CPU: 11 COMMAND: "swapper/11"
PID: 0 TASK: c0000003dbf2cf80 CPU: 12 COMMAND: "swapper/12"
PID: 0 TASK: c0000003dbf2bac0 CPU: 13 COMMAND: "swapper/13"
PID: 0 TASK: c0000003dbf2a600 CPU: 14 COMMAND: "swapper/14"
PID: 0 TASK: c0000003dbf29140 CPU: 15 COMMAND: "swapper/15"
crash> bt
PID: 0 TASK: c0000000013cca80 CPU: 0 COMMAND: "swapper/0"
crash>
== Comment: #5 - Hari Krishna Bathini <hbath...@in.ibm.com> - 2015-06-08
00:31:41 ==
The fix patch is upstream in crash git repo
git://github.com/crash-utility/crash.git
commit id: dc4ea682a21567dd9d093862ec54eb8529199c05
It is part of upstream crash version 7.1.0.
Thanks
Hari
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