freebsd stable - Dec 2003 - FreeBSD 4.8 and instabilities with Buslogic SCSI drivers in VMWare

We've been doing more work with VMware and FreeBSD lately. Overall it's 
been going well, but we have a machine that's giving me grief, and I'm a
bit concerned.

It's running 4.8-Release, with a single virtual SCSI drive.  It's been 
running fine for months, but as of recently, it's started locking up.  When 
it locks up, this is what's in the messages:
/kernel: (da0:bt0:0:0:0): CCB 0xca993340 - timed out
/kernel: bt0: btdone - Attempt to free non-active BCCB 0xca9933c0

This is the scsi card it sees (from vmware)
/kernel: bt0: <Buslogic Multi-Master SCSI Host Adapter> port 0x1060-0x107f
mem 0xfd000000-0xfd00001f irq 9

The host machine is running Windows 2003 Server, on an SMP Xeon host.  The 
virtual machine's I/O is pretty minor, and it doesn't hit the cpu/etc
much
either. Pretty lightweight install.

Any thoughts on the situation would be appreciated.

-d

On Sun, 7 Dec 2003, denon wrote:
> We've been doing more work with VMware and FreeBSD lately. Overall
it's
> been going well, but we have a machine that's giving me grief, and
I'm a
> bit concerned.
>
> It's running 4.8-Release, with a single virtual SCSI drive.  It's
been
> running fine for months, but as of recently, it's started locking up. 
When
> it locks up, this is what's in the messages:
> /kernel: (da0:bt0:0:0:0): CCB 0xca993340 - timed out
> /kernel: bt0: btdone - Attempt to free non-active BCCB 0xca9933c0
I wonder if the vmware environment is bug-for-bug compatible with the old
buslogic hardware :-)

I suspect this is a bug in vmware, where the emulated driver is suffering
from long-term corruption. 43-day bug, perhaps?

Does stopping and starting VMware clear this up?

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite@gumbysoft.com          |  www.FreeBSD.org