Ubuntu
linux package

  1. Bug #1670634
  2. Comment #42

Comment 42 for bug 1670634

Revision history for this message
Juerg Haefliger (juergh) wrote :

The difference between the Xenial and SUSE kernel is that Xenial has:
  CONFIG_SCSI_MQ_DEFAULT=y
  CONFIG_DM_MQ_DEFAULT=y
but SUSE:
  # CONFIG_SCSI_MQ_DEFAULT is not set
  # CONFIG_DM_MQ_DEFAULT is not set

If I disable blk-mq in the Xenial kernel, the test passes.

The easiest 'fix' would be to simply disable blk-mq. This can be accomplished via the kernel commandline parameters: scsi_mod.use_blk_mq=0 dm_mod.use_blk_mq=0.

I also noticed that s390x is the only architecture where these options are enabled in the Xenial kernel. Is there a specific requirement for this?