From: Paolo Bonzini <pbonzini@redhat.com>
To: Chris Takemura <ctakemura@axcient.com>,
qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] lsi53c895a lsi_do_dma assertion failure
Date: Mon, 16 Mar 2015 18:21:23 +0100 [thread overview]
Message-ID: <55071113.9010406@redhat.com> (raw)
In-Reply-To: <D12D2D07.2BF80%ctakemura@axcient.com>
On 16/03/2015 16:59, Chris Takemura wrote:
> Hi everyone,
>
> We're using qemu as a device model for xen 4.4. Lately we've been
> having qemu crashes with this output:
>
> lsi_scsi: error: Unhandled writeb 0xff = 0x0
>
> lsi_scsi: error: Unhandled writeb 0x100 = 0x0
>
> lsi_scsi: error: Unhandled writeb 0x101 = 0x0
>
> lsi_scsi: error: Unhandled writeb 0x102 = 0x0
>
> qemu-system-i386: /home/chris/qemu/hw/scsi/lsi53c895a.c:541: lsi_do_dma:
> Assertion `s->current' failed.
>
>
> This is with a clean qemu-2.1.0 tree, built for Xen.
>
> I confirmed that commit d1d74664ea99cdc571afee12e31c8625595765b0 is
> present in our code. (As described in the thread that begins
> with http://qemu-devel.nongnu.narkive.com/LtGj28sZ/win2k8-32-bit-mix-of-ide-and-scsi-assertion ).
What guest is this? The answer is basically "do not use this device
model", it is old and buggy and newer guests do not even ship the driver
anymore.
Paolo
next prev parent reply other threads:[~2015-03-16 17:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-16 15:59 [Qemu-devel] lsi53c895a lsi_do_dma assertion failure Chris Takemura
2015-03-16 17:21 ` Paolo Bonzini [this message]
2015-03-16 23:35 ` Chris Takemura
2015-03-17 7:22 ` Markus Armbruster
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