Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

[Christoph Hellwig]

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?