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Date: Thu, 6 Jan 2011 09:43:45 +0000
Message-ID: <AANLkTimmZH_bfXoSTxAg-cmuV+8O=ZNBJp36_ApJGRPe@mail.gmail.com>
Subject: Re: [Qemu-devel] [Bug 697510] [NEW] Machine shut off after tons of
	lsi_scsi: error: MSG IN data too long
From: Stefan Hajnoczi <stefanha@gmail.com>
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To: Bug 697510 <697510@bugs.launchpad.net>
Cc: qemu-devel@nongnu.org

On Wed, Jan 5, 2011 at 5:05 AM, TiCPU <jeromepoulin@gmail.com> wrote:
> Using Virtio and Red Hat driver I get a STOP screen 0x100000d1 and machine either reboot, stay frozen or shut off.

Here the minidump would be useful and we should get in touch with the
person that maintains the virtio-blk Windows driver.

> Using SCSI the machine shuts off and I get tons of message on stdout;
[...]
> lsi_scsi: error: Unimplemented message 0x00
> (x8)
>
> lsi_scsi: error: MSG IN data too long
> lsi_scsi: error: Unimplemented message 0x00
> (x760)
>
> lsi_scsi: error: MSG IN data too long
> lsi_scsi: error: MSG IN data too long
> kvm: /build/buildd/qemu-kvm-0.12.5+noroms/hw/lsi53c895a.c:512: lsi_do_dma: Assertion `s->current' failed.

Looks like the LSI SCSI device emulation is getting out of sync with
the guest's device driver.

Can you give more details or a test case that reproduces these
problems?  Which backup software are you using and is it known to do
special purpose SCSI commands?

Stefan