Jinpu,
[CC:ed the mpt3sas maintainers]
The ratelimit patch is just an attempt to treat the symptom, not the
cause.
> Thanks for asking, we updated mpt3sas driver which enables DIX support
> (prot_mask=0x7f), all disks are SATA SSDs, no DIF support.
> After reboot, kernel reports the IO errors from all the drives behind
> HBA, seems for almost every read IO, which turns the system unusable:
> [ 13.079375] sda: ref tag error at location 0 (rcvd 143196159)
> [ 13.079989] sda: ref tag error at location 937702912 (rcvd 143196159)
> [ 13.080233] sda: ref tag error at location 937703072 (rcvd 143196159)
> [ 13.080407] sda: ref tag error at location 0 (rcvd 143196159)
> [ 13.080594] sda: ref tag error at location 8 (rcvd 143196159)
That sounds like a bug in the mpt3sas driver or firmware. I guess the
HBA could conceivably be operating a SATA device as DIX Type 0 and strip
the PI on the drive side. But that doesn't seem to be a particularly
useful mode of operation.
Jinpu: Which firmware are you running? Also, please send us the output
of:
sg_readcap -l /dev/sda
sg_inq -x /dev/sda
sg_vpd /dev/sda
Broadcom: How is DIX supposed to work for SATA drives behind an mpt3sas
controller?
--
Martin K. Petersen Oracle Linux Engineering
