[2.5.50] odd SCSI messages on shutdown

[2.5.50] odd SCSI messages on shutdown

[Tobias Rittweiler]

Hello List,

on shutdown the following lines are displayed, but _not_ logged to
/var/log/messages:

Going to halt the system ...
Synchronizing SCSI caches: sda FAILED
  status = 1, message = 00, host = 0, driver = 08
  Current sd?: sense = 70  5
ASC=20 ASCQ= 0
Raw sense data:0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x0e 0x00 0x00 0x00
0x00 0x20 0x00 0x00 0xc0 0x00 0x00 0x00 0x00 0x00
Power off.


Information about my SCSIs:

/var/log/messages:
==================
Dec  6 21:00:24 brood kernel: SCSI subsystem driver Revision: 1.00
Dec  6 21:00:24 brood kernel: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.4
Dec  6 21:00:24 brood kernel:         <Adaptec 2940 SCSI adapter>
Dec  6 21:00:24 brood kernel:         aic7870: Single Channel A, SCSI Id=0, 16/253 SCBs
Dec  6 21:00:24 brood kernel: 
Dec  6 21:00:24 brood kernel: (scsi0:A:1): 10.000MB/s transfers (10.000MHz, offset 15)
Dec  6 21:00:24 brood kernel:   Vendor: SEAGATE   Model: ST52160N          Rev: 0285
Dec  6 21:00:24 brood kernel:   Type:   Direct-Access                      ANSI SCSI revision: 02
Dec  6 21:00:24 brood kernel: SCSI device sda: drive cache: write back
Dec  6 21:00:24 brood kernel: SCSI device sda: 4238282 512-byte hdwr sectors (2170 MB)
Dec  6 21:00:24 brood kernel:  /dev/scsi/host0/bus0/target1/lun0: p1 p2
Dec  6 21:00:24 brood kernel: Attached scsi disk sda at scsi0, channel 0, id 1, lun 0

/proc/scsi/scsi:
================
Attached devices:
Host: scsi0 Channel: 00 Id: 01 Lun: 00
  Vendor: SEAGATE  Model: ST52160N         Rev: 0285
  Type:   Direct-Access                    ANSI SCSI revision: 02

/proc/scsi/aic7xxx/0:
=====================
Adaptec AIC7xxx driver version: 6.2.4
aic7870: Single Channel A, SCSI Id=0, 16/253 SCBs
Channel A Target 0 Negotiation Settings
        User: 10.000MB/s transfers (10.000MHz, offset 255)
Channel A Target 1 Negotiation Settings
        User: 10.000MB/s transfers (10.000MHz, offset 255)
        Goal: 10.000MB/s transfers (10.000MHz, offset 15)
        Curr: 10.000MB/s transfers (10.000MHz, offset 15)
        Channel A Target 1 Lun 0 Settings
                Commands Queued 155
                Commands Active 0
                Command Openings 1
                Max Tagged Openings 0
                Device Queue Frozen Count 0
Channel A Target 2 Negotiation Settings
        User: 10.000MB/s transfers (10.000MHz, offset 255)
Channel A Target 3 Negotiation Settings
        User: 10.000MB/s transfers (10.000MHz, offset 255)
Channel A Target 4 Negotiation Settings
        User: 10.000MB/s transfers (10.000MHz, offset 255)
Channel A Target 5 Negotiation Settings
        User: 10.000MB/s transfers (10.000MHz, offset 255)
Channel A Target 6 Negotiation Settings
        User: 10.000MB/s transfers (10.000MHz, offset 255)
Channel A Target 7 Negotiation Settings
        User: 10.000MB/s transfers (10.000MHz, offset 255)

/proc/iomem:
============
...
e4000000-e4000fff : Adaptec AHA-2940/2940W / AIC
  e4000000-e4000fff : aic7xxx
...

/proc/ioports:
==============
...
6000-60ff : Adaptec AHA-2940/2940W / AIC
  6000-60ff : aic7xxx
...

any hints?
-- 
cheers,
 Tobias

Re: [2.5.50] odd SCSI messages on shutdown

[GOTO Masanori]

At Fri, 6 Dec 2002 22:34:44 +0100,
Tobias Rittweiler wrote:
> on shutdown the following lines are displayed, but _not_ logged to
> /var/log/messages:
> 
> Going to halt the system ...
> Synchronizing SCSI caches: sda FAILED
>   status = 1, message = 00, host = 0, driver = 08
>   Current sd?: sense = 70  5
> ASC=20 ASCQ= 0
> Raw sense data:0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x0e 0x00 0x00 0x00
> 0x00 0x20 0x00 0x00 0xc0 0x00 0x00 0x00 0x00 0x00
> Power off.

Your device cannot handle SYNCHRONIZED_CACHE command which flushes
Seagate ST52160N device cache during shutdown introduced in recent 2.5.

I think the below patch for 2.5.50 (and current BK) suppresses such
failure message.


--- drivers/scsi/sd.c	2002-11-23 06:40:54.000000000 +0900
+++ drivers/scsi/sd.c.new	2002-12-08 13:14:13.000000000 +0900
@@ -865,8 +865,10 @@
 		if(status_byte(the_result) == CHECK_CONDITION
 		   && (SRpnt->sr_sense_buffer[0] & 0x70) == 0x70
 		   && (SRpnt->sr_sense_buffer[2] & 0x0f) == ILLEGAL_REQUEST
-		   /* The next are ASC 0x24 ASCQ 0x00: Invalid field in CDB */
-		   && SRpnt->sr_sense_buffer[12] == 0x24
+		   /* The next are ASC 0x24 ASCQ 0x00: Invalid field in CDB,
+		      or ASC 0x20 ASCQ 0x00: Invalid command operation code. */
+		   && (SRpnt->sr_sense_buffer[12] == 0x24 ||
+		       SRpnt->sr_sense_buffer[12] == 0x20)
 		   && SRpnt->sr_sense_buffer[13] == 0x00) {
 			printk(KERN_NOTICE "SCSI device %s: cache data unavailable\n", diskname);
 		} else {


-- gotom