On Thu, 2021-01-21 at 13:05 +0000, John Garry wrote:

quoted

quoted

Confirmed my suspicions - it looks like the host is sent more
commands 
than it can handle. We would need many disks to see this issue
though, 
which you have.

So for stable kernels, 6eb045e092ef is not in 5.4 . Next is 5.10, and
I 
suppose it could be simply fixed by setting .host_tagset in scsi host
template there.

If it's really just that, it should be easy enough to verify.

@Donald, you'd need to test with a 5.10 kernel, and after reproducing
the issue, add 

        .host_tagset            = 1,

to the definition of pqi_driver_template in
drivers/scsi/smartpqi/smartpqi_init.c. 

You don't need a patch to test that, I believe. Would you able to do
this test?

Regards,
Martin