>>>>> "Shaohua" == Shaohua Li <shli@xxxxxxxxxx> writes: Shaohua> SCSI layer will add new payload for discard request. If two Shaohua> bios are merged to one, the second bio has bi_vcnt 1 which is Shaohua> set in raid5. This will confuse SCSI and cause oops. A discard bio does not have a payload prior to the SCSI command being prepared so vcnt should indeed be 0. Acked-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
