>>>>> "Mike" == Mike Snitzer <snitzer@xxxxxxxxxx> writes: Mike> The REQ_WRITE_SAME request, that SCSI is processing on behalf of Mike> the dm_kcopyd_zero() generated bio, has multiple bios (as if Mike> merging occurred). Did you add a fix for the issue Vivek pointed out wrt. merging? PS. I pushed an updated 'writesame2' branch to kernel.org. -- Martin K. Petersen Oracle Linux Engineering -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel