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

[Christian Borntraeger]

On 11/23/2017 07:59 PM, Christian Borntraeger wrote:
> 
> 
> 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)
> 

FWIW, just having the changes in irq_affinity.c is indeed fine.