This bug was fixed in the package makedumpfile -
1:1.6.5-1ubuntu1~18.04.1
---------------
makedumpfile (1:1.6.5-1ubuntu1~18.04.1) bionic; urgency=low
* Backport back to bionic. (LP: #1655280) (LP: #1790788)
makedumpfile (1:1.6.5-1ubuntu1) disco; urgency=low
[ Ubuntu Merge-o-Matic ]
* Merge from Debian unstable. Remaining changes:
- Bump amd64 crashkernel from 384M-:128M to 512M-:192M.
[ Thadeu Lima de Souza Cascardo ]
* Use a different service for vmcore dump. (LP: #1811692)
makedumpfile (1:1.6.5-1) unstable; urgency=medium
* Update to new upstream version 1.6.5.
* debian: remove debian/source/local-options
* [i18n] Move PT debconf translation (Closes: #910465)
makedumpfile (1:1.6.4-3) unstable; urgency=medium
* Reload kdump after memory/CPU hotplug. (LP: #1655280)
* Fix adding crashkernel to zipl.conf when no quotation mark is used.
(LP: #1790788)
-- Thadeu Lima de Souza Cascardo <casca...@canonical.com> Thu, 07 Feb
2019 09:22:23 -0200
** Changed in: makedumpfile (Ubuntu Bionic)
Status: Fix Committed => Fix Released
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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1655280
Title:
ISST-LTE:pVM:roselp4:ubuntu 16.04: cp: error reading '/proc/vmcore':
Bad address when trying to dump vmcore
Status in The Ubuntu-power-systems project:
In Progress
Status in linux package in Ubuntu:
Invalid
Status in makedumpfile package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Invalid
Status in makedumpfile source package in Xenial:
New
Status in linux source package in Bionic:
Invalid
Status in makedumpfile source package in Bionic:
Fix Released
Status in linux source package in Cosmic:
Invalid
Status in makedumpfile source package in Cosmic:
Fix Released
Status in linux source package in Disco:
Invalid
Status in makedumpfile source package in Disco:
Fix Released
Bug description:
[Impact]
After a DLPAR memory/CPU add/remove operation, kdump tools need to be
restarted or else kdump tools will fail to capture the crash.
[Test]
== Comment: #0 - Ping Tian Han <pt...@cn.ibm.com> - 2017-01-09 02:51:00 ==
---Problem Description---
Vmcore cannot be saved when triggering bug 150353 on roselp4:
Copying data : [ 2.0 %] \/usr/sbin/kdump-config: line
591: 5502 Bus error makedumpfile $MAKEDUMP_ARGS $vmcore_file
$KDUMP_CORETEMP
[ 512.833872] kdump-tools[5450]: * kdump-tools: makedumpfile failed,
falling back to 'cp'
[ 573.595449] kdump-tools[5450]: cp: error reading '/proc/vmcore': Bad
address
[ 573.605717] kdump-tools[5450]: * kdump-tools: failed to save vmcore in
/var/crash/201701090223
[ 573.765417] kdump-tools[5450]: * running makedumpfile --dump-dmesg
/proc/vmcore /var/crash/201701090223/dmesg.201701090223
[ 574.285506] kdump-tools[5450]: The kernel version is not supported.
[ 574.285672] kdump-tools[5450]: The makedumpfile operation may be
incomplete.
[ 574.285767] kdump-tools[5450]: The dmesg log is saved to
/var/crash/201701090223/dmesg.201701090223.
[ 574.305422] kdump-tools[5450]: makedumpfile Completed.
[ 574.315363] kdump-tools[5450]: * kdump-tools: saved dmesg content in
/var/crash/201701090223
[ 574.615688] kdump-tools[5450]: Mon, 09 Jan 2017 02:24:26 -0600
[ 574.705384] kdump-tools[5450]: Rebooting.
Stopping ifup for ib0...
[ OK ] Stopped ifup for ib0.
[ 1008.579897] reboot: Restarting system
Contact Information = Ping Tian Han/pt...@cn.ibm.com Carrie
Mitsuyoshi/carri...@us.ibm.com
---uname output---
Linux roselp4 4.8.0-34-generic #36~16.04.1-Ubuntu SMP Wed Dec 21 18:53:20 UTC
2016 ppc64le ppc64le ppc64le GNU/Linux
Machine Type = lpar
---Debugger---
A debugger is not configured
---Steps to Reproduce---
1. config kdump on roselp4
2. try to trigger bug 150353
*Additional Instructions for Ping Tian Han/pt...@cn.ibm.com Carrie
Mitsuyoshi/carri...@us.ibm.com:
-Post a private note with access information to the machine that the bug is
occuring on.
== Comment: #3 - Brahadambal Srinivasan <brsri...@in.ibm.com> -
2017-01-10 02:42:25 ==
root@roselp4:~# cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinux-4.8.0-34-generic
root=UUID=0bcf3431-df8b-499c-9a13-33070f242e0c ro splash quiet
crashkernel=384M-:512M
root@roselp4:~# dmesg | grep Reser
[ 0.000000] Reserving 512MB of memory at 128MB for crashkernel (System
RAM: 21760MB)
[Regression Potential]
The fix applies to makedumpfile, and could impact dump capture.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-power-systems/+bug/1655280/+subscriptions
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