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Date: Wed, 5 Jun 2013 16:26:13 +0800
From: Fam Zheng <famz@redhat.com>
Message-ID: <20130605082613.GA23742@localhost.nay.redhat.com>
References: <1370271492-5259-1-git-send-email-stefanha@redhat.com>
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In-Reply-To: <1370271492-5259-1-git-send-email-stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] blockdev: reset werror/rerror on drive_del
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To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, dron@redhat.com, Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org, Markus Armbruster <armbru@redhat.com>

On Mon, 06/03 16:58, Stefan Hajnoczi wrote:
> Paolo Bonzini <pbonzini@redhat.com> suggested the following test case:
> 
> 1. Launch a guest and wait at the GRUB boot menu:
> 
>   qemu-system-x86_64 -enable-kvm -m 1024 \
>    -drive if=none,cache=none,file=test.img,id=foo,werror=stop,rerror=stop
>    -device virtio-blk-pci,drive=foo,id=virtio0,addr=4
> 
> 2. Hot unplug the device:
> 
>   (qemu) drive_del foo
> 
> 3. Select the first boot menu entry
> 
> Without this patch the guest pauses due to ENOMEDIUM.  But it is not
> possible to resolve this situation - the drive has become anonymous.
> 
> With this patch the guest the guest gets the ENOMEDIUM error.
s/the guest the guest/the guest/

-- 
Fam