I switched around the cables in my RAID5 with no effect (sdc gets the error).
I switched around the HDs with no effect (sdc gets the error).
Since
for i in a b c d e ; do echo 1 > /sys/block/sd$i/device/queue_depth ; done
in rc.local the error appears rarely. But under stress (reading large files fast) it's reproducible.
Everything works fine with archlinux.
I switched around the cables in my RAID5 with no effect (sdc gets the error).
I switched around the HDs with no effect (sdc gets the error).
Since
for i in a b c d e ; do echo 1 > /sys/block/ sd$i/device/ queue_depth ; done
in rc.local the error appears rarely. But under stress (reading large files fast) it's reproducible.
Everything works fine with archlinux.