Author: mav
Date: Sat May 11 08:15:56 2013
New Revision: 250502
URL: http://svnweb.freebsd.org/changeset/base/250502
Log:
MFC r249352:
Do not sent 120 TEST UNIT READY requests on generic NOT READY statuses.
Some failing disks tend to return vendor-specific ASC/ASCQ codes with
NOT READY sense key. It caused extremely long recovery attempts, repeating
these 120 TURs (it takes at least 1 minute) for every I/O request.
Instead of that use default error handling, doing just few retries.
Modified:
stable/8/sys/cam/scsi/scsi_all.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/cam/ (props changed)
Modified: stable/8/sys/cam/scsi/scsi_all.c
==============================================================================
--- stable/8/sys/cam/scsi/scsi_all.c Sat May 11 08:14:33 2013
(r250501)
+++ stable/8/sys/cam/scsi/scsi_all.c Sat May 11 08:15:56 2013
(r250502)
@@ -683,10 +683,7 @@ const struct sense_key_table_entry sense
{
{ SSD_KEY_NO_SENSE, SS_NOP, "NO SENSE" },
{ SSD_KEY_RECOVERED_ERROR, SS_NOP|SSQ_PRINT_SENSE, "RECOVERED ERROR" },
- {
- SSD_KEY_NOT_READY, SS_TUR|SSQ_MANY|SSQ_DECREMENT_COUNT|EBUSY,
- "NOT READY"
- },
+ { SSD_KEY_NOT_READY, SS_RDEF, "NOT READY" },
{ SSD_KEY_MEDIUM_ERROR, SS_RDEF, "MEDIUM ERROR" },
{ SSD_KEY_HARDWARE_ERROR, SS_RDEF, "HARDWARE FAILURE" },
{ SSD_KEY_ILLEGAL_REQUEST, SS_FATAL|EINVAL, "ILLEGAL REQUEST" },
@@ -861,7 +858,7 @@ static struct asc_table_entry asc_table[
{ SST(0x03, 0x02, SS_RDEF,
"Excessive write errors") },
/* DTLPWROMAEBKVF */
- { SST(0x04, 0x00, SS_TUR | SSQ_MANY | SSQ_DECREMENT_COUNT | EIO,
+ { SST(0x04, 0x00, SS_RDEF,
"Logical unit not ready, cause not reportable") },
/* DTLPWROMAEBKVF */
{ SST(0x04, 0x01, SS_TUR | SSQ_MANY | SSQ_DECREMENT_COUNT | EBUSY,
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