scsi errors

Thu May 16 10:22:47 PDT 2002

Bartho has gone home already, but here is some info (dmesg has dropped 
the info already):

[caepdc:/home/users/bgmilne]# uname -a
Linux caepdc.cae.sun.ac.za 2.4.18-6mdk #1 Fri Mar 15 02:59:08 CET 2002 
i686 unknown
[caepdc:/home/users/bgmilne]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
   Vendor: IBM      Model: DDYS-T36950M     Rev: S96H
   Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 01 Lun: 00
   Vendor: IBM      Model: DDYS-T36950M     Rev: S96H
   Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 02 Lun: 00
   Vendor: IBM      Model: DDYS-T36950M     Rev: S96H
   Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 03 Lun: 00
   Vendor: IBM      Model: DDYS-T36950M     Rev: S96H
   Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 04 Lun: 00
   Vendor: IBM      Model: DDYS-T36950M     Rev: S96H
   Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 05 Lun: 00
   Vendor: HP       Model: C5713A           Rev: H910
   Type:   Sequential-Access                ANSI SCSI revision: 02
[bgmilne at caepdc bgmilne]$ cat /proc/scsi/aic7xxx/0
Adaptec AIC7xxx driver version: 6.2.4
aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
Channel A Target 0 Negotiation Settings
	User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
	Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
	Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
	Channel A Target 0 Lun 0 Settings
		Commands Queued 482683
		Commands Active 0
		Command Openings 253
		Max Tagged Openings 253
		Device Queue Frozen Count 0
Channel A Target 1 Negotiation Settings
	User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
	Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
	Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
	Channel A Target 1 Lun 0 Settings
		Commands Queued 486171
		Commands Active 0
		Command Openings 253
		Max Tagged Openings 253
		Device Queue Frozen Count 0
Channel A Target 2 Negotiation Settings
	User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
	Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
	Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
	Channel A Target 2 Lun 0 Settings
		Commands Queued 463487
		Commands Active 0
		Command Openings 253
		Max Tagged Openings 253
		Device Queue Frozen Count 0
Channel A Target 3 Negotiation Settings
	User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
	Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
	Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
	Channel A Target 3 Lun 0 Settings
		Commands Queued 20015
		Commands Active 0
		Command Openings 253
		Max Tagged Openings 253
		Device Queue Frozen Count 0
Channel A Target 4 Negotiation Settings
	User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
	Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
	Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
	Channel A Target 4 Lun 0 Settings
		Commands Queued 488647
		Commands Active 0
		Command Openings 253
		Max Tagged Openings 253
		Device Queue Frozen Count 0
Channel A Target 5 Negotiation Settings
	User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit)
	Goal: 40.000MB/s transfers (20.000MHz, offset 32, 16bit)
	Curr: 40.000MB/s transfers (20.000MHz, offset 32, 16bit)
	Channel A Target 5 Lun 0 Settings
		Commands Queued 16
		Commands Active 0
		Command Openings 1
		Max Tagged Openings 0
		Device Queue Frozen Count 0

We are also getting a number of "underflow" messsages, leading up to an 
abort:
May 15 16:24:08 caepdc kernel: Saw underflow (3072 of 8192 bytes). 
Treated as error
May 15 16:38:46 caepdc kernel: Saw underflow (1024 of 32768 bytes). 
Treated as error
May 15 16:40:56 caepdc kernel: Saw underflow (4096 of 8704 bytes). 
Treated as error
May 15 16:40:56 caepdc kernel: Saw underflow (4096 of 8704 bytes). 
Treated as error
May 15 16:42:21 caepdc kernel: Saw underflow (12800 of 13824 bytes). 
Treated as error
May 15 16:49:57 caepdc kernel: Saw underflow (6656 of 26112 bytes). 
Treated as error
May 15 17:06:29 caepdc kernel: Saw underflow (8192 of 32768 bytes). 
Treated as error
May 15 17:08:03 caepdc kernel: scsi0:0:0:0: Attempting to queue an ABORT 
messageMay 15 17:08:03 caepdc kernel: scsi0: Dumping Card State in 
Data-in phase, at SEQADDR 0x90
May 15 17:08:03 caepdc kernel: ACCUM = 0x0, SINDEX = 0x18, DINDEX = 
0x52, ARG_2 = 0xff
May 15 17:08:03 caepdc kernel: HCNT = 0x0
May 15 17:08:03 caepdc kernel: SCSISEQ = 0x12, SBLKCTL = 0xa

Justin T. Gibbs wrote:
>>I get the following errors on a Mandrake 8.2 box with an aic7xxx scsi 
>>controlle. There is a SCA module with 5 scsi disk and a hp tape 
>>connected to this. The errors doesn't seem to stop and this is also 
>>making the box extremely unstable. Anyone knows what this is and how to 
>>fix it.
> 
> 
> Please post a dmesg showing the full configuration.  Since ATN is
> asserted, you may be getting intermittent parity errors.  Knowing
> the chip type will allow me to know exactly where the firmware is
> executing and I may be able to figure out more.
> 
> --
> Justin
> 
> To Unsubscribe: send mail to majordomo at FreeBSD.org
> with "unsubscribe aic7xxx" in the body of the message

-- 
|----------------Registered Linux User #182071-----------------|
Buchan Milne                Mechanical Engineer, Network Manager
Cellphone * Work            +27 82 472 2231 * +27 21 8828820x202
Stellenbosch Automotive Engineering         http://www.cae.co.za
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