linux-kernel - Re: [PATCH 2/2] vhost: handle polling failure

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Message-ID: <50DD2025.1050004@redhat.com>
Date:	Fri, 28 Dec 2012 12:29:25 +0800
From:	Jason Wang <jasowang@...hat.com>
To:	gaowanlong@...fujitsu.com
CC:	mst@...hat.com, kvm@...r.kernel.org,
	virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] vhost: handle polling failure

On 12/27/2012 06:01 PM, Wanlong Gao wrote:
> On 12/27/2012 02:39 PM, Jason Wang wrote:
>> > Currently, polling error were ignored in vhost. This may lead some issues (e.g
>> > kenrel crash when passing a tap fd to vhost before calling TUNSETIFF). Fix this
>> > by:
> Can this kernel crash be reproduced by hand?
>
> Thanks,
> Wanlong Gao
>
>> > 
Yes, it could be simply reproduced by: open a tap fd but does not cal
TUNSETIFF, then pass it to qemu and enable vhost.
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