Bug 3361 – SCSI problem on SMP system

• Status: RESOLVED INVALID
• Product: Gentoo Linux

[Description Kim Bratlie 2002-06-03 16:30:49 UTC]

An Input/output error occurs, causing the copy to halt about 15-30 seconds 
after initiating a file copy from any CD I have using my SCSI-CDRW drive.

Another problem I have encountered is complete system freezes when trying 
to copy from IDE HD's to SCSI HD's and vice versa. (Critical)

I have the Adaptec AHA-2940U2W, I'm using aic7xxx compiled into the kernel 
along with SCSI and SCSI-disk support, and the only modules being used are 
sr_mod and sg.

My motherboard is the Abit VP6 with VIA chipset.
Dual P3 866Mhz CPU's.
512MB RAM
Adaptec AHA-2940U2W PCI Controller
2 SCSI HD's
Yamaha SCSI-CDRW
3Com Ethernet PCI adapter
SB Live! PCI adapter
Abit GeForce 3 Siluro Ti200

I have tried everything I could think of with my hardware, freeing up as 
many IRQ's as possible and making sure that the SCSI controller does not 
share any IRQ's.

I had a problem directly related to my previous davicom network adapter, 
when installing gentoo I would get SCSI errors when doing the "ifconfig 
eth0" but that disappeared when I installed the 3Com adapter instead.

In short, SCSI is not working as it should on my SMP computer.

[Comment 1 Michael Cohen (RETIRED) 2002-06-05 08:50:12 UTC]

What kernel version and .config?  Also, try the recent crypto sources.

[Comment 2 Jens Finkhäuser 2002-06-29 17:21:05 UTC]

on an almost identical system (fewer scsi and no ide devices), i get worse
errors: the kernel crashes during boot, after correctly detecting the installed
devices... the error messages are too long to reproduce here by hand (sorry!),
but from what i gather it's a 15+/- line long dump of one byte hex values, which
the kernel produces for each scsi id on the controller. after that, it resumes
it's work and then obviously fails to access the root fs.

with a vanilla kernel everything works fine, it's the 2.4.18 one, as opposed to
the 2.4.19-gentoo-r7 where the crashes occur. i'll attach the .config of the
2.4.19 one.

[Comment 3 Jens Finkhäuser 2002-06-29 17:22:49 UTC]

Created attachment 1874 [details]
.config for 2.4.19-gentoo-r7

[Comment 4 Michael Cohen (RETIRED) 2002-07-16 22:05:46 UTC]

try mjc-sources...

[Comment 5 Mark Berry 2002-07-26 16:42:48 UTC]

Hi, I am having VERY similar problems myself.

I have a dual cpu PIII and a adaptec 29160.  

I have been able to isolate it to the scsi module, I modprobe the aic7xxx driver
and it either hangs or goes into a kernel panic. 

Could it be that the patched kernel has broken the adaptec drivers?  

If I let it go through to the auto-probe it will crash it too.

[Comment 6 Brandon Low (RETIRED) 2002-09-06 17:46:51 UTC]

can you both test with gentoo-sources-2.4.19-r9 and let me know the status so I
know what still needs fixing for the next kernel?

[Comment 7 Brandon Low (RETIRED) 2002-10-01 08:12:14 UTC]

re-open if -r9 or the pending -r10 still break it.

[Comment 8 Pat Grimm 2003-11-07 07:47:55 UTC]

I had scsi problems using smp from the boot cd and installing.

For the boot cd do noscsi option os immediately after booting do

# rmmod aic7xxx
# modprobe aic7xxx_old

For kernel compile on smp enabled build use "Old Adaptec aic7xxx"

Seems to work for me