>>>>> "Mike" == Mike Snitzer <snitzer@xxxxxxxxxx> writes: Mike, Mike> Alasdair and I just chatted about this patch: it will always pass Mike> the the -EILSEQ up _without_ performing any mpath path failure. Correct. Mike> The newfound concern is: is there ever a benefit to failing the Mike> path before returning -EILSEQ? No, never. Mike> Or will -EILSEQ always imply there is nothing wrong with the path? Mike> E.g. a transport error cannot cause a CRC error -- the transport Mike> error is always trapped by SCSI and cannot result in continued Mike> processing of an IO (that goes on to have CRC error)? -EILSEQ is only returned if a discrepancy is detected between data and protection information. In both cases the block in question was successfully received by either initiator or target. I.e. the path is working fine. -- Martin K. Petersen Oracle Linux Engineering -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
