On Thu, Dec 04, 2008 at 09:26:35AM -0600, Ryan Harper wrote:
> * Anssi Kolehmainen <[EMAIL PROTECTED]> [2008-12-04 08:51]:
> > Hi,
> > 
> > I have kvm environment with linux-2.6.28-rc7 x86_64 (Xeon), kvm-79 host
> > and bunch of Win2K3 guests. Sometimes I get 'lsi_scsi: error: Bad Status
> > move' from kvm (qemu) and in Windows event log "The device,
> > \Device\Scsi\sym_hi1, did not respond within the timeout period." These
> > errors come somewhat at random, usually with 10-30 second intervals when
> > there is enough disk usage in the guest (seems that installing Bea
> > Weblogic or Oracle database is pretty nice for causing these errors).
> > 
> > Usually windows is able to recover from these but sometimes (=too often)
> > I get random delays and hangups. Also I have gotten BSOD 0x77 (0x02,
> > 0x00, 0x00, 0x5f4000) about once a day.
> > 
> > Any ideas how to debug / fix this problem?
> 
> Current KVM userspace has a bogus line in the scsi code relating to the
> DBC register which looks like is what is tripping up the Bad Status, or
> could be anyhow.  Try out with this patch applied to your qemu dir:
> 
> http://lists.gnu.org/archive/html/qemu-devel/2008-12/msg00043.html

That line is not in kvm-79... And with that line added Windows doesn't
even seem to start.

> You can also enable debugging in qemu/hw/lsi53c895a.c and in
> qemu/hw/scsi-disk.c   Sending that output here would be helpful if we're
> still tracking it.

Nice 160mb log from just starting windows and running the installer
until BSOD. Only 1.7mb with bzip2 compression:
http://kelvin.aketzu.net/kvm-qemu.log.bz2

(The "error:" line isn't there since it went to stderr. This time
Windows crashed so the error should be somewhere in the end.)

> If you can recreate with the patch applied or on an older KVM that
> doesn't have that line in there, I'll try to reproduce. 

kvm-79 doesn't seem to have it.

> Are there free/downloadable copies of Bae or Oracle that I can use to
> recreate?

Yeah, they are both available for free. You can get the Bea (now Oracle)
Weblogic (application server) from:
http://www.oracle.com/technology/software/products/ias/htdocs/wls_main.html
The version we used is "Oracle WebLogic Server 10.0 MP1"

(I guess any big application which uncompresses to HD / installs lots of
files might work.)

-- 
Anssi Kolehmainen
[EMAIL PROTECTED]
040-5085390
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