** Also affects: linux-bluefield (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-bluefield (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux-bluefield (Ubuntu)
Status: New => Invalid
** Changed in: linux-bluefield (Ubuntu Jammy)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/2028197
Title:
rshim console truncates dmesg output due to tmfifo issue
Status in linux-bluefield package in Ubuntu:
Invalid
Status in linux-bluefield source package in Focal:
New
Status in linux-bluefield source package in Jammy:
Fix Committed
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.
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