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SubjectSCSI problem

We have a problem when using a SCSI disk under linux 2.0

Although we have been able to run without interruptions for several days, the
system hangs when specific operations are performed.
For instance, under gzip -t on a large file (500Mb) we always obtain, after
approximately one minute, the error "scsi0: Queue full". The complete error
output is shown below.

We do not know if this could be related with a hardware problem or with
a wrongly set SCSI parameter, any suggestions?

Thanks A. Mu~noz


System:
==============================================================================
Slackware 3.1 + Kernel 2.0.13

Adaptec 2940UW + Mainboard ASUS P/I-P55TP4N with 256K Burst Pipelined L2 Cache
+ Pentium 133MHz + 32MB DRAM + HD Quantum ATLAS XP34300W

Error output:
==============================================================================
scsi0: Queue full.
scsi : aborting command due to timeout : pid 14338, scsi0, channel 0, id 0, lun
0 Read (10) 00 00 35 01 06 00 00 02 00
aic7xxx: (abort) Aborting scb 1, TCL 0/0/0
scsi : aborting command due to timeout : pid 14339, scsi0, channel 0, id 0, lun
0 Read (10) 00 00 35 01 0a 00 00 02 00
aic7xxx: (abort) Aborting scb 0, TCL 0/0/0
scsi : aborting command due to timeout : pid 14338, scsi0, channel 0, id 0, lun
0 Read (10) 00 00 35 01 06 00 00 02 00
aic7xxx: (abort) Aborting scb 1, TCL 0/0/0
SCSI host 0 abort (pid 14338) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
aic7xxx: (reset) target/channel 0/0
aic7xxx: (abort_reset) scb state 0x1, Data-In phase, SCSISIGI = 0x44
aic7xxx: (abort_scb) asserted ATN - bus device reset in message buffer.
scsi : aborting command due to timeout : pid 14339, scsi0, channel 0, id 0, lun
0 Read (10) 00 00 35 01 0a 00 00 02 00
aic7xxx: (abort) Aborting scb 0, TCL 0/0/0
SCSI host 0 abort (pid 14339) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
aic7xxx: (reset) target/channel 0/0
aic7xxx: (abort_reset) scb state 0x1, Data-In phase, SCSISIGI = 0x54
aic7xxx: (abort_scb) asserted ATN - bus device reset in message buffer.
SCSI host 0 channel 0 reset (pid 14338) timed out - trying harder
SCSI bus is being reset for host 0 channel 0.
aic7xxx: (reset) target/channel 0/0
SCSI host 0 channel 0 reset (pid 14339) timed out - trying harder
SCSI bus is being reset for host 0 channel 0.
aic7xxx: (reset) target/channel 0/0
aic7xxx: (abort_reset) scb state 0x1, Data-In phase, SCSISIGI = 0x54
aic7xxx: (abort_scb) asserted ATN - bus device reset in message buffer.
SCSI host 0 reset (pid 14338) timed out again -
probably an unrecoverable SCSI bus or device hang.
SCSI host 0 reset (pid 14339) timed out again -
probably an unrecoverable SCSI bus or device hang.

--

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