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? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1670634 Title: blk-mq: possible deadlock on CPU hot(un)plug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1670634/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
