netdev - Re: [PATCH net 0/3] rds: tcp: fix various rds-tcp issues during netns create/delete sequences

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Message-ID: <c758fee8-c854-4bbd-ce83-8b3fe12ace9c@oracle.com>
Date:   Tue, 7 Mar 2017 08:29:21 -0800
From:   Santosh Shilimkar <santosh.shilimkar@...cle.com>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     Sowmini Varadhan <sowmini.varadhan@...cle.com>,
        David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        syzkaller <syzkaller@...glegroups.com>, rds-devel@....oracle.com
Subject: Re: [PATCH net 0/3] rds: tcp: fix various rds-tcp issues during netns
 create/delete sequences

On 3/7/2017 12:28 AM, Dmitry Vyukov wrote:
> On Tue, Mar 7, 2017 at 2:04 AM, santosh.shilimkar@...cle.com
> <santosh.shilimkar@...cle.com> wrote:
>> On 3/4/17 8:57 AM, Sowmini Varadhan wrote:
>>>
>>> Dmitry Vyukov reported some syszkaller panics during netns deletion.
>>>
>>> While I have not been able to reproduce those exact panics, my attempts
>>> to do so uncovered a few other problems, which are fixed patch 2 and
>>> patch 3 of this patch series. In addition, as mentioned in,
>>>  https://www.spinics.net/lists/netdev/msg422997.html
>>> code-inspection points that the rds_connection needs to take an explicit
>>> refcnt on the struct net so that it is held down until all cleanup is
>>> completed for netns removal, and this is fixed by patch1.
>>>
>> Hopefully Dmitry can try the series and see if it fixes the issue(s).
>> The fixes looks good to me.
>>
>> FWIW, Acked-by: Santosh Shilimkar <santosh.shilimkar@...cle.com>
>
>
> I've applied the patches for testing. I've seen the reported crashes
> only few times, so it won't provide a good testing. But at least it
> can detect any regressions.
>
Thanks Dmitry !!