On 11/23/2017 07:32 PM, Christoph Hellwig wrote: > On Thu, Nov 23, 2017 at 07:28:31PM +0100, Christian Borntraeger wrote: >> zfcp on s390. > > Ok, so it can't be the interrupt code, but probably is the blk-mq-cpumap.c > changes. Can you try to revert just those for a quick test? Hmm, I get further in boot, but the system seems very sluggish and it does not seem to be able to access the scsi disks (get data from them)