Date: Wed, 10 Sep 1997 08:33:05 +0200 From: "Ulrich Windl" <ulrich.windl@rz.uni-regensburg.de> To: linux-kernel@vger.rutgers.edu Cc: aic7xxx@freebsd.org Subject: 2.0.31-pre9: AIC7xxx stops the show Message-ID: <7A967FC5D64@rkdvmks1.ngate.uni-regensburg.de>
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(Even though the kernel died rather cleanly:)
The kernel died while I was making a backup of two complete kernel
trees from SCSI disk to SCSI tape. It worked for a while, then
suddenly it stopped.
scsi: aborting due to timeout
Kernel panic: aic7xxx: Waiting List inconsistency; SCB index=255, numscbs=9
In swapper task - not syncing
I have a AHA2940 with a 1GB Conner disk and a HP C1536 DDS drive.
Tagged queueing is enabled with a qsize of 8 for the disk. I also
had enabled SCB paging. (I had this setup for a long time without trouble)
Also there's a bug with the /proc stats that some August-patch from Doug Lefford
removed. I was surprised to see it (With scanning for multiple LUNs enabled
things are even worse):
The aic7xxx driver in 2.0.31-pre9 writes statistic entries for non-existing
IDs and LUNs. I think there was a fix for that already.
Adaptec AIC7xxx driver version: 4.1/3.2
Compile Options:
AIC7XXX_RESET_DELAY : 5
AIC7XXX_TAGGED_QUEUEING: Enabled
AIC7XXX_PAGE_ENABLE : Enabled
AIC7XXX_PROC_STATS : Enabled
Adapter Configuration:
SCSI Adapter: Adaptec AHA-294X SCSI host adapter
(AIC-787x chipset)
Host Bus: Single
Base IO: 0xe000
Base IO Memory: 0xf9800000
IRQ: 11
SCBs: Used 4, HW 16, Page 255
Interrupts: 6381
Serial EEPROM: True
Extended Translation: Enabled
SCSI Bus Reset: Enabled
Ultra SCSI: Disabled
Target Disconnect: Enabled
Statistics:
CHAN#A (TGT 0 LUN 0):
nxfers 6362 (6155 read;207 written)
blks(512) rd=83477; blks(512) wr=1056
< 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K >128K
Reads: 3 5 4 4757 496 246 152 492 0 0
Writes: 0 0 0 160 45 2 0 0 0 0
CHAN#A (TGT 1 LUN 0):
nxfers 2 (2 read;0 written)
blks(512) rd=0; blks(512) wr=0
< 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K >128K
Reads: 2 0 0 0 0 0 0 0 0 0
Writes: 0 0 0 0 0 0 0 0 0 0
CHAN#A (TGT 2 LUN 0):
nxfers 2 (2 read;0 written)
blks(512) rd=0; blks(512) wr=0
< 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K >128K
Reads: 2 0 0 0 0 0 0 0 0 0
Writes: 0 0 0 0 0 0 0 0 0 0
CHAN#A (TGT 3 LUN 0):
nxfers 2 (2 read;0 written)
blks(512) rd=0; blks(512) wr=0
< 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K >128K
Reads: 2 0 0 0 0 0 0 0 0 0
Writes: 0 0 0 0 0 0 0 0 0 0
CHAN#A (TGT 4 LUN 0):
nxfers 2 (2 read;0 written)
blks(512) rd=0; blks(512) wr=0
< 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K >128K
Reads: 2 0 0 0 0 0 0 0 0 0
Writes: 0 0 0 0 0 0 0 0 0 0
CHAN#A (TGT 5 LUN 0):
nxfers 2 (2 read;0 written)
blks(512) rd=0; blks(512) wr=0
< 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K >128K
Reads: 2 0 0 0 0 0 0 0 0 0
Writes: 0 0 0 0 0 0 0 0 0 0
CHAN#A (TGT 6 LUN 0):
nxfers 2 (2 read;0 written)
blks(512) rd=0; blks(512) wr=0
< 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K >128K
Reads: 2 0 0 0 0 0 0 0 0 0
Writes: 0 0 0 0 0 0 0 0 0 0
Ulrich Windl
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