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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: Wenwu Ma <wenwux.ma@intel.com>, chenbo.xia@intel.com, dev@dpdk.org
Cc: jiayu.hu@intel.com, yinan.wang@intel.com, xingguang.he@intel.com,
	stable@dpdk.org
Subject: Re: [PATCH v3] vhost: fix deadlock when message handling failed
Date: Tue, 17 May 2022 15:24:03 +0200
Message-ID: <eb114a63-301a-2c85-7212-b7c3b3490c60@redhat.com> (raw)
In-Reply-To: <20220507132753.11357-1-wenwux.ma@intel.com>



On 5/7/22 15:27, Wenwu Ma wrote:
> In vhost_user_msg_handler(), if vhost message handling
> failed, we should check whether the queue is locked and
> release the lock before returning. Or, it will cause a
> deadlock later.
> 
> Fixes: 7f31d4ea05ca ("vhost: fix lock on device readiness notification")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Wenwu Ma <wenwux.ma@intel.com>
> ---
>   lib/vhost/vhost_user.c | 10 ++++++----
>   1 file changed, 6 insertions(+), 4 deletions(-)
> 

Applied to dpdk-next-virtio/main.

Thanks,
Maxime


      parent reply	other threads:[~2022-05-17 13:24 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220505134008.2865-1-wenwux.ma@intel.com>
2022-05-05 16:17 ` [PATCH v2] vhost: fix deadlock when handling user messages Wenwu Ma
2022-05-06  8:19   ` Xia, Chenbo
2022-05-07 13:27 ` [PATCH v3] vhost: fix deadlock when message handling failed Wenwu Ma
2022-05-07  6:02   ` Xia, Chenbo
2022-05-09  3:13   ` Ling, WeiX
2022-05-17 13:15   ` David Marchand
2022-05-17 13:24   ` Maxime Coquelin [this message]

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