Kernel livepatch ftrace graph fix
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Ubuntu on IBM z Systems |
Fix Released
|
Medium
|
Unassigned | ||
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Medium
|
John Cabaj |
Bug Description
[Impact]
* Additional patch required to support Livepatch for s390x
* Fixes Livepatch transition issues when using ftrace graph tracing
[Test Case]
* Compile test
* Boot test
* Test a Livepatch (patch to /proc/meminfo module)
* Test Livepatch from ftrace graphed function (via https:/
[Where things could go wrong]
* Functionality already exists upstream, once kernel is boot and Livepatch tested - should have no regressions
[Other info]
* Additional required patch was identified (https:/
Changed in linux (Ubuntu): | |
status: | New → In Progress |
Changed in linux (Ubuntu Jammy): | |
status: | New → In Progress |
Changed in ubuntu-z-systems: | |
status: | New → In Progress |
tags: | added: s390x |
Changed in linux (Ubuntu): | |
status: | In Progress → Invalid |
Changed in linux (Ubuntu Jammy): | |
importance: | Undecided → Medium |
Changed in ubuntu-z-systems: | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Jammy): | |
assignee: | nobody → John Cabaj (john-cabaj) |
Changed in linux (Ubuntu Jammy): | |
status: | In Progress → Fix Committed |
Changed in ubuntu-z-systems: | |
status: | In Progress → Fix Released |
This bug is awaiting verification that the linux/5.15.0-72.79 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- jammy' to 'verification- done-jammy' . If the problem still exists, change the tag 'verification- needed- jammy' to 'verification- failed- jammy'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Thank you!