From: Jan Kiszka <jan.kiszka@siemens.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] scsi: lsi problems since "unit attention on reset"
Date: Mon, 26 Sep 2011 18:12:09 +0200 [thread overview]
Message-ID: <4E80A459.3030607@siemens.com> (raw)
In-Reply-To: <4E8098BB.4060103@redhat.com>
On 2011-09-26 17:22, Paolo Bonzini wrote:
> On 09/26/2011 05:10 PM, Jan Kiszka wrote:
>> And you were right: it turned out to be a driver issue. The bug sneaked
>> in while adapting the original driver to some specific differences
>> between QEMU and real HW (here: lacking compat bit support).
>
> Cool, then we can leave in the patch I think. I originally did it in
> hope of detecting possible bugs with (upcoming) migration support, which
> will use unit attention to make the guest requeue all requests on the
> destination. It looks like my goal has been attained.
At least for this user.
>
> Out of curiosity, have you ever looked into (or are you interested into)
> using multiple LUNs per target with the LSI driver? It crashes
> miserably for me with a page fault in the Linux ISR, and that's when I
> started using another device. :)
"Unfortunately", I haven't been confronted with such a requirement so
far. :)
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
prev parent reply other threads:[~2011-09-26 16:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-26 7:27 [Qemu-devel] scsi: lsi problems since "unit attention on reset" Jan Kiszka
2011-09-26 7:50 ` Paolo Bonzini
2011-09-26 9:23 ` Jan Kiszka
2011-09-26 9:49 ` Paolo Bonzini
2011-09-26 10:26 ` Jan Kiszka
2011-09-26 11:00 ` Paolo Bonzini
2011-09-26 15:10 ` Jan Kiszka
2011-09-26 15:22 ` Paolo Bonzini
2011-09-26 16:12 ` Jan Kiszka [this message]
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