[dm-devel] 4.1-rc2 dm-multipath-mq kernel warning

[Bart Van Assche]

On 05/27/15 14:57, Mike Snitzer wrote:
> Looks like Junichi likely fixed this issue you reported, please try this
> patch: https://patchwork.kernel.org/patch/6487321/

Hello Mike,

On a setup on which an I/O verification test passes with 
blk-mq/scsi-mq/dm-mq disabled, this is what fio reports after a few 
minutes with scsi-mq and dm-mq enabled:

test: Laying out IO file(s) (1 file(s) / 10MB)
fio: io_u error on file /mnt/test.0.0: Input/output error: write 
offset=8327168, buflen=4096
fio: io_u error on file /mnt/test.0.0: Input/output error: write 
offset=9007104, buflen=4096
fio: pid=4568, err=5/file:io_u.c:1564, func=io_u error, 
error=Input/output error

Bart.