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From: "Roger B. Melton" <rmelton@cisco.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: Qi Zhang <qi.z.zhang@intel.com>,
	konstantin.ananyev@intel.com, jingjing.wu@intel.com,
	beilei.xing@intel.com, dev@dpdk.org, stable@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] net/i40e: fix unexpected mbuf free in vPMD
Date: Tue, 10 Oct 2017 07:47:38 -0400	[thread overview]
Message-ID: <6c3a1cbd-e28a-a9cc-ed46-e08dc03644ce@cisco.com> (raw)
In-Reply-To: <20171010113959.GA40296@bricha3-MOBL3.ger.corp.intel.com>

On 10/10/17 7:39 AM, Bruce Richardson wrote:
> On Tue, Oct 10, 2017 at 07:05:33AM -0400, Roger B. Melton wrote:
>> Hi Bruce,
>>
>> I can.  It will take a day or 2 to get the results.
>>
>> Regards,
>> Roger
>>
> Thanks. Keep us posted. We want to ensure we have the best fix possible
> for the issue in this release.

Thanks for finding a better solution ;-).  I'll let you know the results 
when I have them, just wanted you to know it may take a couple of days 
to turn around.

-Roger

>
> /Bruce
>
>> On 10/10/17 4:48 AM, Bruce Richardson wrote:
>>> +Roger Melton
>>>
>>> On Tue, Oct 10, 2017 at 09:22:05AM -0400, Qi Zhang wrote:
>>>> vPMD tx does not set sw_ring's mbuf to NULL after free it.
>>>> So to prevent same mbuf be free again, we need more carefully
>>>> check in i40e_tx_queue_release_mbufs.
>>>>
>>>> Fixes: b4669bb95038 ("i40e: add vector Tx")
>>>> Cc: stable@dpdk.org
>>>>
>>>> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
>>>> ---
>>>> v2:
>>>> - fix at i40e_tx_queue_release_mbufs so no performance impact.
>>>>
>>> This patch also supercedes this one, http://dpdk.org/dev/patchwork/patch/29814/
>>> right?
>>> Roger, can you please confirm that this alternative fix works in your
>>> testing and that your patch is no longer necessary too.
>>>
>>> Thanks,
>>> /Bruce
>>>
>>> .
>>>
> .
>

  reply	other threads:[~2017-10-10 11:47 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-10 13:22 Qi Zhang
2017-10-10  8:48 ` Bruce Richardson
2017-10-10 11:05   ` Roger B. Melton
2017-10-10 11:39     ` Bruce Richardson
2017-10-10 11:47       ` Roger B. Melton [this message]
2017-10-12 11:15         ` [dpdk-dev] [dpdk-stable] " Roger B. Melton
2017-10-12 11:30           ` Richardson, Bruce
2017-10-12 17:28 ` Ferruh Yigit
  -- strict thread matches above, loose matches on Subject: below --
2017-10-09  8:53 [dpdk-dev] " Qi Zhang
2017-10-09  1:47 ` Wu, Jingjing
2017-10-09 12:44 ` Ananyev, Konstantin
2017-10-09 13:20   ` Bruce Richardson
2017-10-10  1:10   ` Zhang, Qi Z

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