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Date: Thu, 25 Dec 2014 15:19:40 +0800
From: Fam Zheng <famz@redhat.com>
Message-ID: <20141225071940.GA19375@ad.nay.redhat.com>
References: <549B6EFA.3010603@huawei.com>
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Subject: Re: [Qemu-devel] [question] block: do we have any consideration
 about adding retry support in error handling?
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To: Bin Wu <wu.wubin@huawei.com>
Cc: Kevin Wolf <kwolf@redhat.com>, "pbonzini@redhat.com >> Paolo Bonzini" <pbonzini@redhat.com>, qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>

On Thu, 12/25 11:46, Bin Wu wrote:
> On 2014/12/25 10:42, Fam Zheng wrote:
> > On Thu, 12/25 09:57, Bin Wu wrote:
> >> Hi,
> >>
> >> When IO error happens in physical device, qemu block layer supports error
> >> reporting, error ignoring and error stoping(for example, virtio-blk). Can we
> >> have any way to resend the error IO?
> > 
> > With error stop, the request is retried after resume.
> > 
> > Fam
> > 
> > 
> 
> Thank you very much, Fam, I see. Another question: I think error stop is not the
> default error handling strategy, how can we configure error stop in the VM XML
> file? Can you just show me some example? Thanks again:>

This is a question for libvirt, look for "error_policy":

https://libvirt.org/formatdomain.html

Fam