Re: [PATCH v14 10/19] scsi: core: Retry unaligned zoned writes

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On 10/23/23 17:13, Damien Le Moal wrote:
On 10/24/23 06:54, Bart Van Assche wrote:
  	case ILLEGAL_REQUEST:
+		/*
+		 * Unaligned write command. This may indicate that zoned writes
+		 * have been received by the device in the wrong order. If zone
+		 * write locking is disabled, retry after all pending commands
+		 * have completed.
+		 */
+		if (sshdr.asc == 0x21 && sshdr.ascq == 0x04 &&
+		    !req->q->limits.use_zone_write_lock &&
+		    blk_rq_is_seq_zoned_write(req) &&
+		    scmd->retries <= scmd->allowed) {
+			sdev_printk(KERN_INFO, scmd->device,
+				    "Retrying unaligned write at LBA %#llx.\n",
+				    scsi_get_lba(scmd));

KERN_INFO ? Did you perhaps mean KERN_DEBUG ? An info message for this will be
way too noisy.

Hi Damien,

Are you sure that KERN_INFO will be too noisy? On our test setups we see
this message less than once a day. Anyway, I will change the severity level.

Bart.




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