error messages with AHA-2940UW

[Sheldon E. Newhouse]

Hi,
 I have recently started getting brief lockups of the system. The screen
freezes for 3 or 4 seconds, and then is OK.  This happens with some
regularity.   I am running RH-5.1, kernel 2.0.34.  I recently added a
Hauppauge TV-tuner, and don't know if that is related to the cause.  

Here are my scsi devices:

Attached devices: 
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: SEAGATE  Model: ST19171W         Rev: 0023
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
  Vendor: QUANTUM  Model: XP39100W         Rev: LXY4
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 00
  Vendor: PLEXTOR  Model: CD-ROM PX-12TS   Rev: 1.02
  Type:   CD-ROM                           ANSI SCSI revision: 02

Below are scsi error messages.  

As you can see the error messages are related to the Quantum disk. 

Any ideas?

TIA,
 -sen


scsi : aborting command due to timeout : pid 7513, scsi0, channel 0, id
1, lun 0 Read (6) 05 96 bd 10 00 
scsi : aborting command due to timeout : pid 9539, scsi0, channel 0, id
1, lun 0 Write (6) 08 c0 87 02 00 
scsi : aborting command due to timeout : pid 9540, scsi0, channel 0, id
1, lun 0 Write (6) 08 c0 8d 04 00 
scsi : aborting command due to timeout : pid 9538, scsi0, channel 0, id
1, lun 0 Write (6) 08 c0 79 02 00 
lp1 at 0x0378, (polling)
scsi : aborting command due to timeout : pid 11440, scsi0, channel 0, id
1, lun 0 Read (6) 08 40 6d 02 00 
scsi : aborting command due to timeout : pid 11570, scsi0, channel 0, id
1, lun 0 Read (10) 00 00 3e 24 53 00 00 02 00 
scsi : aborting command due to timeout : pid 11657, scsi0, channel 0, id
1, lun 0 Read (10) 00 00 67 36 ed 00 00 02 00 
lp1 at 0x0378, (polling)
scsi : aborting command due to timeout : pid 11761, scsi0, channel 0, id
1, lun 0 Write (6) 09 80 d5 02 00 
scsi : aborting command due to timeout : pid 11762, scsi0, channel 0, id
1, lun 0 Write (6) 09 80 dd 02 00 
scsi : aborting command due to timeout : pid 11760, scsi0, channel 0, id
1, lun 0 Write (6) 09 40 5b 02 00 
scsi : aborting command due to timeout : pid 11824, scsi0, channel 0, id
1, lun



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