Date: Sun, 2 May 1999 12:18:48 -0500 From: "Gregory T. Norris" <haphazard@socket.net> To: aic7xxx@freebsd.org Subject: reset loop, 5.1.16 on kernel 2.2.7 Message-ID: <19990502121848.A19529@glitch.snoozer.net>
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Last night, I had the aic7xxx driver go into an apparently neverending
cycle of attempting to reset the SCSI bus, and then timing out. After
giving it about 45 minutes with no progress, I finally had to perform a
forced reboot. At the time I was running version 5.1.16 under Linux
kernel 2.2.7 - all seems well if I revert to the 5.1.15 driver.
The messages I saw are as follows (my apologies if any are incorrect - I
had to write them down as they were scrolling by), repeated MANY times:
----------
wait_on_bh, CPU 0
irq: 0 [0 0]
bh: 1 [0 1]
<[c010ac0d]> <[c0154b36]> <[c0154bb1]> <[c0162f81]> <[c0146573]> <[c01304bb]> <[c013098a]> SCSI host 0 abort (pid 24015) timed out - resetting
SCSI bus is being reset for host 0 channel 0
SCSI host 0 channel 0 (pid 24015) timed out - trying harder
----------
The driver was compiled-in the kernel, with the following options (no
boot-time options were given):
CONFIG_SCSI_AIC7XXX=y
CONFIG_AIC7XXX_TCQ_ON_BY_DEFAULT=y
CONFIG_AIC7XXX_CMDS_PER_DEVICE=24
# CONFIG_AIC7XXX_PROC_STATS is not set
CONFIG_AIC7XXX_RESET_DELAY=5
Now for some hardware details... the system is a dual PII-300 with 256Mb
of RAM. The actual SCSI card is a 2940UW. Below are the contents of
/proc/scsi/aic7xxx/0 and /proc/scsi/scsi (note: I'm pulling this in from
my current 5.1.15 environment).
---------- /proc/scsi/aic7xxx/0 ----------
Adaptec AIC7xxx driver version: 5.1.15/3.2.4
Compile Options:
TCQ Enabled By Default : Enabled
AIC7XXX_PROC_STATS : Disabled
AIC7XXX_RESET_DELAY : 5
Adapter Configuration:
SCSI Adapter: Adaptec AHA-294X Ultra SCSI host adapter
Ultra Wide Controller
PCI MMAPed I/O Base: 0xfebfe000
Adapter SEEPROM Config: SEEPROM found and used.
Adaptec SCSI BIOS: Enabled
IRQ: 19
SCBs: Active 0, Max Active 48,
Allocated 60, HW 16, Page 255
Interrupts: 66071
BIOS Control Word: 0x18a6
Adapter Control Word: 0x005a
Extended Translation: Enabled
Disconnect Enable Flags: 0xffff
Ultra Enable Flags: 0x0003
Tag Queue Enable Flags: 0x0003
Ordered Queue Tag Flags: 0x0003
Default Tag Queue Depth: 24
Tagged Queue By Device array for aic7xxx host instance 0:
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
Actual queue depth per device for aic7xxx host instance 0:
{24,24,1,1,1,1,1,1,1,1,1,1,1,1,1,1}
Statistics:
(scsi0:0:0:0)
Device using Wide/Sync transfers at 40.0 MByte/sec, offset 8
Transinfo settings: current(12/8/1/0), goal(12/8/1/0), user(12/15/1/0)
Total transfers 32899 (19379 reads and 13520 writes)
(scsi0:0:1:0)
Device using Wide/Sync transfers at 40.0 MByte/sec, offset 8
Transinfo settings: current(12/8/1/0), goal(12/8/1/0), user(12/15/1/0)
Total transfers 32204 (7550 reads and 24654 writes)
(scsi0:0:5:0)
Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 15
Transinfo settings: current(25/15/0/0), goal(12/15/0/0), user(12/15/0/0)
Total transfers 0 (0 reads and 0 writes)
(scsi0:0:6:0)
Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 15
Transinfo settings: current(25/15/0/0), goal(12/15/0/0), user(12/15/0/0)
Total transfers 0 (0 reads and 0 writes)
---------- /proc/scsi/scsi ----------
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: SEAGATE Model: ST34501W Rev: 0018
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: SEAGATE Model: ST34501W Rev: 0018
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 00
Vendor: iomega Model: jaz 1GB Rev: J.86
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: PLEXTOR Model: CD-ROM PX-20TS Rev: 1.00
Type: CD-ROM ANSI SCSI revision: 02
----------
I'd be happy to provide any additional information that might be
required. Just let me know what would be helpful.
Thanx!
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