Ubuntu
linux-bluefield package

  1. Focal (20.04)
  2. Bug #2028197
  3. Comment #0

Comment 0 for bug 2028197

Revision history for this message
Shih-Yi Chen (shihyic) wrote :

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.