I assume this happens with iSCSI as well? There is nothing special
we are doing with respect to digest.
I don't see this issue with iscsi-tcp.
May be blk-mq is causing this issue? I assume iscsi-tcp does not have
blk_mq support yet upstream to verify with blk_mq enabled.
I tried on Ubuntu 19.10(which is based on Linux kernel 5.3), note that
RHEL does not support DataDigest.
The reason that I'm seeing this issue only with NVMe(tcp/softiwarp) &
iSER(softiwarp) is becuase of NVMeF&ISER using blk-mq?
Anyhow, I see the content of the page is being updated by upper layers
while the tranport driver is computing CRC on that page content and
this needs a fix.
Krishna, do you happen to run with nvme multipath enabled?
