Win2K3 SCSI errors

[Anssi Kolehmainen <anssi@aketzu.net>]

Hi,

Just to recap my problems with Win2K3 and SCSI...

Host: 2.6.28 x86_64 Intel Core2Duo E8500 (3.16GHz), 6gb ram
Guest: Win2003 server, 32-bit, SP2
KVM: 82 (both userspace and kernel modules)

qemu-system-x86_64 -name $name -smp 1 -m 1024 -vnc :$id -k fi -serial
mon:telnet::1000$id,server,nowait -localtime -vga std -usb -usbdevice
tablet -net nic,macaddr=00:16:3e:00:00:$id,model=e1000 -net
tap,ifname=tap-$name -pidfile /var/run/kvm/$name.pid -boot c -drive
index=0,media=disk,if=scsi,boot=on,file=/dev/mapper/vg0-$name

- Copying file from network drive (100mbps network) to local drive seems
  to cause 'lsi_scsi: error: Bad Status move' 100% in one system,
  usually somewhere after 300mb transferred.
- Also sometimes installing Oracle DB, Bea Weblogic and/or MS SQL Server
  seems to cause it.
- Under normal loads it happens about once a week.
- When running without kvm modules no errors occur.

- Writing null to local drive works just fine. Unbuffered and
  write-trough write is about 50mb/s (whereas host can do about 95mb/s).
- Once after such write I got 'Bad status move' error but only after
  guest had been idling for about 30s. Resulted in Windows
  KERNEL_INPAGE_ERROR (ntfs.sys) BSOD. Hasn't occured since.

- Not all 'Bad status moves' cause BSOD but if they do it is
  KERNEL_INPAGE_ERROR... Feels like memory corruption to me.

- Windows event log contains few dozen of "The driver detected a
  controller error on \Device\Scsi\sym_hu1." These come mostly in boot.
- Another event log error 'The device did not respond within the timeout
  period.' occurs at somewhat same time as 'Bad Status move' error.

- Bad Status move looks like it comes when scsi (write) command is
  completed after adapter is reset. Executed SCRIPTS doesn't know
  adapter has been reset and does bad things.

Ryan, have you been able to duplicate this? I can provide you access to
my test system where you could try to debug this.

-- 
Anssi Kolehmainen
anssi.kolehmainen@iki.fi
040-5085390