ISST-LTE:pVM:roselp4:ubuntu 16.04: cp: error reading '/proc/vmcore': Bad address when trying to dump vmcore
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
The Ubuntu-power-systems project |
Fix Released
|
High
|
Canonical Kernel Team | ||
makedumpfile (Ubuntu) |
Fix Released
|
High
|
Unassigned | ||
Xenial |
Fix Released
|
High
|
Unassigned | ||
Bionic |
Fix Released
|
High
|
Unassigned | ||
Cosmic |
Fix Released
|
High
|
Unassigned | ||
Disco |
Fix Released
|
High
|
Unassigned |
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 <email address hidden> - 2017-01-09 02:51:00 ==
---Problem Description---
Vmcore cannot be saved when triggering bug 150353 on roselp4:
Copying data : [ 2.0 %] \/usr/sbin/
[ 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/
[ 573.765417] kdump-tools[5450]: * running makedumpfile --dump-dmesg /proc/vmcore /var/crash/
[ 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/
[ 574.305422] kdump-tools[5450]: makedumpfile Completed.
[ 574.315363] kdump-tools[5450]: * kdump-tools: saved dmesg content in /var/crash/
[ 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 <email address hidden> Carrie <email address hidden>
---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 <email address hidden> Carrie <email address hidden>:
-Post a private note with access information to the machine that the bug is occuring on.
== Comment: #3 - Brahadambal Srinivasan <email address hidden> - 2017-01-10 02:42:25 ==
root@roselp4:~# cat /proc/cmdline
BOOT_IMAGE=
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.
Changed in linux (Ubuntu): | |
assignee: | Steve Langasek (vorlon) → Canonical Kernel Team (canonical-kernel-team) |
tags: | added: ubuntu-16.04 |
Changed in linux (Ubuntu): | |
importance: | High → Medium |
importance: | Medium → High |
Changed in ubuntu-power-systems: | |
importance: | Undecided → High |
tags: | added: triage-r |
Changed in ubuntu-power-systems: | |
status: | New → Triaged |
tags: | added: kernel-da-key |
Changed in ubuntu-power-systems: | |
assignee: | nobody → Canonical Kernel Team (canonical-kernel-team) |
status: | Triaged → In Progress |
tags: |
added: triage-g removed: triage-r |
tags: |
added: triage-r removed: triage-g |
tags: |
added: triage-a removed: triage-r |
tags: | added: ppc64el-kdump |
summary: |
- ISST-LTE:pVM:roselp4:ubuntu 16.04.2: cp: error reading '/proc/vmcore': - Bad address when trying to dump vmcore + ISST-LTE:pVM:roselp4:ubuntu 16.04: cp: error reading '/proc/vmcore': Bad + address when trying to dump vmcore |
Changed in ubuntu-power-systems: | |
status: | In Progress → Incomplete |
tags: |
added: triage-g removed: triage-a |
tags: | removed: kernel-da-key |
Changed in ubuntu-power-systems: | |
status: | Incomplete → Triaged |
Changed in ubuntu-power-systems: | |
status: | Triaged → In Progress |
tags: |
added: triage-r removed: triage-g |
Changed in ubuntu-power-systems: | |
status: | In Progress → Incomplete |
Changed in ubuntu-power-systems: | |
status: | Incomplete → In Progress |
Changed in linux (Ubuntu): | |
status: | In Progress → Invalid |
Changed in makedumpfile (Ubuntu): | |
status: | New → In Progress |
importance: | Undecided → High |
description: | updated |
Changed in ubuntu-power-systems: | |
status: | In Progress → Fix Committed |
tags: | added: cscc |
Changed in makedumpfile (Ubuntu Xenial): | |
status: | New → In Progress |
Changed in ubuntu-power-systems: | |
status: | Incomplete → Fix Committed |
no longer affects: | linux (Ubuntu) |
no longer affects: | linux (Ubuntu Xenial) |
no longer affects: | linux (Ubuntu Bionic) |
no longer affects: | linux (Ubuntu Cosmic) |
no longer affects: | linux (Ubuntu Disco) |
Changed in ubuntu-power-systems: | |
status: | Fix Committed → Fix Released |
Changed in makedumpfile (Ubuntu Xenial): | |
importance: | Undecided → High |
Changed in makedumpfile (Ubuntu Bionic): | |
importance: | Undecided → High |
Default Comment by Bridge