From: Ferruh Yigit <ferruh.yigit@intel.com>
To: "Jiang, YuX" <yux.jiang@intel.com>,
Maxime Coquelin <maxime.coquelin@redhat.com>,
"dev@dpdk.org" <dev@dpdk.org>,
"Xia, Chenbo" <chenbo.xia@intel.com>,
"amorenoz@redhat.com" <amorenoz@redhat.com>
Cc: "stable@dpdk.org" <stable@dpdk.org>,
"Wang, Yinan" <yinan.wang@intel.com>
Subject: Re: [dpdk-dev] [PATCH] vhost: fix virtqueue initialization
Date: Mon, 9 Nov 2020 18:38:29 +0000 [thread overview]
Message-ID: <f297168a-f634-88f3-9861-3d3dad1a5eff@intel.com> (raw)
In-Reply-To: <3d29ed679e83421c9c3d637664f84184@intel.com>
On 11/9/2020 5:09 AM, Jiang, YuX wrote:
> Tested-by: JiangYuX <yux.jiang@intel.com>
>
Please don't top post.
Also tag should be: "Tested-by: Yu Jiang <yux.jiang@intel.com>"
>
>> -----Original Message-----
>> From: Maxime Coquelin [mailto:maxime.coquelin@redhat.com]
>> Sent: Friday, November 6, 2020 10:48 PM
>> To: dev@dpdk.org; Xia, Chenbo <chenbo.xia@intel.com>;
>> amorenoz@redhat.com
>> Cc: stable@dpdk.org; Maxime Coquelin <maxime.coquelin@redhat.com>;
>> Jiang, YuX <yux.jiang@intel.com>
>> Subject: [PATCH] vhost: fix virtqueue initialization
>>
>> This patches fixes virtqueue initialization issue causing segfault or file
>> descriptor being closed unexpectedly.
>>
>> The wrong index was passed to init_vring_queue() by
>> alloc_vring_queue() when a hole in the virtqueue array was met.
>>
>> Fixes: 8acd7c213353 ("vhost: fix virtqueues metadata allocation")
>> Cc: stable@dpdk.org
>>
>> Reported-by: Yu Jiang <yux.jiang@intel.com>
>> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
>> ---
>> lib/librte_vhost/vhost.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c index
>> 8a151a9c1d..b83cf639eb 100644
>> --- a/lib/librte_vhost/vhost.c
>> +++ b/lib/librte_vhost/vhost.c
>> @@ -605,7 +605,7 @@ alloc_vring_queue(struct virtio_net *dev, uint32_t
>> vring_idx)
>> }
>>
>> dev->virtqueue[i] = vq;
>> - init_vring_queue(dev, vring_idx);
>> + init_vring_queue(dev, i);
>> rte_spinlock_init(&vq->access_lock);
>> vq->avail_wrap_counter = 1;
>> vq->used_wrap_counter = 1;
>> --
>> 2.26.2
>
next prev parent reply other threads:[~2020-11-09 18:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-06 14:47 Maxime Coquelin
2020-11-06 15:56 ` David Marchand
2020-11-09 5:09 ` Jiang, YuX
2020-11-09 18:38 ` Ferruh Yigit [this message]
2020-11-09 16:31 ` Maxime Coquelin
2020-11-09 18:37 ` Ferruh Yigit
2020-11-09 18:39 ` Maxime Coquelin
2020-11-09 18:40 ` [dpdk-dev] [dpdk-stable] " Ferruh Yigit
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