rshim console truncates dmesg output due to tmfifo issue
Bug #2028197 reported by
Shih-Yi Chen
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-bluefield (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
Unassigned | ||
Jammy |
Fix Committed
|
Undecided
|
Unassigned |
Bug Description
SRU Justification:
[Impact]
mlxbf_tmfifo driver does not always schedule work for VIRTIO CONSOLE nottification. The result is with rshim console, the dmesg output would be cut off or simply cat a big text file to stdout.
[Fix]
* Make sure TM_TX_LWM_IRQ bit is set when there is a notification of virtio console event.
[Test Case]
* Compare the output of dmesg from rshim console and ssh session. Make sure both are the same.
* Issue is reproduced w/o fix and compare the same dmesg output from the same as above.
[Regression Potential]
The changes affect only virtio console event handling only and been tested fully.
[Others]
This issue is the same on focal and Jammy.
CVE References
description: | updated |
Changed in linux-bluefield (Ubuntu): | |
status: | New → Invalid |
Changed in linux-bluefield (Ubuntu Jammy): | |
status: | New → Fix Committed |
tags: |
added: verification-done-jammy removed: verification-needed-jammy |
Changed in linux-bluefield (Ubuntu Focal): | |
status: | New → Fix Committed |
tags: |
added: verification-done-focal-linux-bluefield removed: verification-needed-focal-linux-bluefield |
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This bug is awaiting verification that the linux-bluefield /5.15.0- 1020.22 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!