makekdump should re-exec with cio_ignore on s390x
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Ubuntu on IBM z Systems |
Fix Released
|
Medium
|
Unassigned | ||
makedumpfile (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Xenial |
Fix Released
|
Medium
|
Louis Bouchard |
Bug Description
[SRU justification]
kernel crash dump fails to work without the modification.
[Impact]
Broken functionality.
[Fix]
Add cio_ignore -k -y output to the kexec command.
[Test Case]
Follow indication in comment #2 to reproduce. With the fix, kdump will function as expected.
[Regression]
A regression situation is outlined in comment #16. Newer channel devices may not be visible because of the added cio_ignore output. This may be worked around with a single command.
The resolution outweights this limitation that can be easily worked around.
[Original description of the problem]
As per https:/
We should re-exec with cio_ignore lines. As per report there, it should result in lowered required crashdump setting.
Hypothetically, one should be able to test this imperially by lowering crashdump memory settings until kdump does not succeed anymore. And then generated and append `cio_ignore -k -u` to the KDUMP_CMDLINE_
Once this is developed / verified / tested, we should probably SRU this back to xenial.
tags: | added: s390x |
Changed in makedumpfile (Ubuntu): | |
status: | New → Confirmed |
importance: | Undecided → Medium |
assignee: | nobody → Louis Bouchard (louis-bouchard) |
tags: |
added: targetmilestone-inin16041 removed: targetmilestone-inin1610 |
no longer affects: | ubuntu-release-notes |
Changed in ubuntu-z-systems: | |
importance: | Undecided → Medium |
status: | New → Confirmed |
Changed in ubuntu-z-systems: | |
status: | Confirmed → Fix Released |
Changed in makedumpfile (Ubuntu Xenial): | |
status: | New → In Progress |
assignee: | nobody → Louis Bouchard (louis-bouchard) |
Changed in makedumpfile (Ubuntu): | |
assignee: | Louis Bouchard (louis-bouchard) → nobody |
Changed in makedumpfile (Ubuntu Xenial): | |
importance: | Undecided → Medium |
description: | updated |
tags: |
added: verification-done removed: verification-needed |
------- Comment From <email address hidden> 2016-04-15 07:33 EDT------- /bugs.launchpad .net/ubuntu/ +source/ makedumpfile/ +bug/1570775
Reverse Mirror Request for following LP bugzilla:
https:/