SCSI: aborting command due to timeout

SCSI: aborting command due to timeout

Post by Xiaoqin Qi » Thu, 24 May 2001 04:01:14



Hi,

Recently we have a PC installed RedHat 6.2 with 2.2.14-5.0smp kernel
experiencing problems with SCSI. We have two SCSI hard disk in this
machine. The problem is sometimes the kernel falls into continuos loop
of messages like

May 22 07:34:49 asap kernel: scsi : aborting command due to timeout :
pid 14258, scsi0, channel 0, id 1, lun 0 Read (10) 00 00 31 d8 e0 00 00
10 00
May 22 07:34:49 asap kernel: scsi : aborting command due to timeout :
pid 14259, scsi0, channel 0, id 1, lun 0 Read (10) 00 00 31 d8 f8 00 00
70 00
May 22 07:34:49 asap kernel: scsi : aborting command due to timeout :
pid 14260, scsi0, channel 0, id 1, lun 0 Read (10) 00 00 24 41 00 00 00
08 00
May 22 07:34:51 asap kernel: SCSI host 0 abort (pid 14259) timed out -
resetting
May 22 07:34:51 asap kernel: SCSI bus is being reset for host 0 channel
0.
May 22 07:34:54 asap kernel: (scsi0:0:1:0) Synchronous at 20.0
Mbyte/sec, offset 15.
May 22 07:35:25 asap kernel: scsi : aborting command due to timeout :
pid 14430, scsi0, channel 0, id 1, lun 0 Read (10) 00 00 32 25 58 00 00
80 00
May 22 07:35:25 asap kernel: scsi : aborting command due to timeout :
pid 14431, scsi0, channel 0, id 1, lun 0 Read (10) 00 00 32 25 d8 00 00
80 00
May 22 07:35:25 asap kernel: scsi : aborting command due to timeout :
pid 14432, scsi0, channel 0, id 1, lun 0 Read (10) 00 00 28 29 e0 00 00
08 00
May 22 07:35:27 asap kernel: SCSI host 0 abort (pid 14431) timed out -
resetting
May 22 07:35:27 asap kernel: SCSI bus is being reset for host 0 channel
0.
May 22 07:35:30 asap kernel: (scsi0:0:1:0) Synchronous at 20.0
Mbyte/sec, offset 15.

and the machine hangs (it seems it can't do any IO operations anymore).

Is there anyone know the reason for this problem and how to fix it?

Thank you very much!

Xiaoqin

 
 
 

SCSI: aborting command due to timeout

Post by Duane Healin » Thu, 24 May 2001 13:40:19


I would suspect hardware first and check the usual suspects: cabling,
termination, and ID conflicts. If all those look fine then perhaps the
drive itself is actually failing. I'd check cabling first though, given
the symptoms.

You say you recently installed RH 6.2, if you never experienced any
problems with this machine with other OS's or versions then perhaps some
software issue is to blame, but I would consider that less likely. Only If
I could do an A/B comparison with another version and consistantly see it
with one and not the other would I suspect software in a situation like
this.

--
-Duane
-DNAware SoftLabs

In a feverish moment of semi-lucidity, "Xiaoqin Qiu"

Quote:> Hi,
> Recently we have a PC installed RedHat 6.2 with 2.2.14-5.0smp kernel
> experiencing problems with SCSI. We have two SCSI hard disk in this
> machine. The problem is sometimes the kernel falls into continuos loop
> of messages like
> May 22 07:34:49 asap kernel: scsi : aborting command due to timeout :
> pid 14258, scsi0, channel 0, id 1, lun 0 Read (10) 00 00 31 d8 e0 00 00
> 10 00

[snip]

 
 
 

SCSI: aborting command due to timeout

Post by Peter T. Breue » Thu, 24 May 2001 14:51:27



> Recently we have a PC installed RedHat 6.2 with 2.2.14-5.0smp kernel
> experiencing problems with SCSI. We have two SCSI hard disk in this
> May 22 07:34:51 asap kernel: SCSI bus is being reset for host 0 channel
> 0.
> Is there anyone know the reason for this problem and how to fix it?

Bad/nonexistant termination on the cable.

Or unsupported controller.

Peter

 
 
 

SCSI: aborting command due to timeout

Post by Andy Walke » Sat, 26 May 2001 06:09:53




>> Recently we have a PC installed RedHat 6.2 with 2.2.14-5.0smp kernel
>> experiencing problems with SCSI. We have two SCSI hard disk in this
>> May 22 07:34:51 asap kernel: SCSI bus is being reset for host 0 channel
>> 0.

>> Is there anyone know the reason for this problem and how to fix it?

>Bad/nonexistant termination on the cable.

>Or unsupported controller.

>Peter

I had a similar problem with an adaptec card but tried an advansys card
instead and the same thing happened. I put it down to incompatabilities
within the so called SCSI standard, as soon  as I removed my old SCSI 1
drives the problem went away. I'm pretty sure termination wasn't the problem
as these drives were in the middle of the chain and unterminated (I removed
the resistor packs to make sure).
I now use both SCSI controllers, one with my old drives and the other with
my newer CD writer and hard disks. This works flawlessly.
Hope this helps.
 
 
 

1. Help needed ! (scsi : aborting command due to timeout)

Hello there:
        I am trying to install linux with the hareware below:
                     TP4XE55
                     AHA 1542CF
                     Quantum TRB850S
                     32 MB -6 (16X2) RAM
                     PCI CN970EBT NIC
 But when I start to boot from boot disk (scsinet1, ascnet1), I got the
message below:
X-Newsreader: TIN [version 1.2 PL2]

scsi : adaptec 1542
scsi : 1 host
scsi : aborting command due to timeout : pid 0, scsi0, id0, lun 0 0x00 00 00
00 00 00
SCSI host 0 abort() timed out - resetting
Sent BUS DEVICE RESET to target 0
Sending DID_RESET for target 0
Sending DID_RESET for target 0
Sending DID_RESET for target 0
Sending DID_RESET for target 0
Sending DID_RESET for target 0
Sending DID_RESET for target 0

        This message repeats infinity.........

        Could anyone please help me??

        I used Intel MB last month & found that it wasn't as stable as I
wanted, so I am now cswitching it to TP4XE55, strange....

Ken

--







Kent Nyiau Sin Kian from Malaysia. A Junior in MIS, National Central Univ.
*****************************************************************************
Love Hwong Chang Ching. Care of her for the rest of her life.
*****************************************************************************
23 y  168cm 55kg black hair brown eyes spec.
Reading Writting Thinking Singing
*****************************************************************************

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