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Re: [PATCH]net:sched:release lock before tcf_dump_walker() normal return to avoid deadlock

Started byJamal Hadi Salim <jhs@mojatatu.com>
First post2016-12-06 15:00 +0100
Last post2016-12-07 01:20 +0100
Articles 2 — 2 participants

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  Re: [PATCH]net:sched:release lock before tcf_dump_walker() normal  return to avoid deadlock Jamal Hadi Salim <jhs@mojatatu.com> - 2016-12-06 15:00 +0100
    Re: [PATCH]net:sched:release lock before tcf_dump_walker() normal  return to avoid deadlock Cong Wang <xiyou.wangcong@gmail.com> - 2016-12-07 01:20 +0100

#1536988 — Re: [PATCH]net:sched:release lock before tcf_dump_walker() normal return to avoid deadlock

FromJamal Hadi Salim <jhs@mojatatu.com>
Date2016-12-06 15:00 +0100
SubjectRe: [PATCH]net:sched:release lock before tcf_dump_walker() normal return to avoid deadlock
Message-ID<sLorL-2IR-19@gated-at.bofh.it>
On 16-12-06 12:36 AM, Feng Deng wrote:
> From: Feng Deng<cxdx2006@gmail.com>
>
> release lock before tcf_dump_walker() normal return to avoid deadlock
>

/Scratching my head.

I am probably missing something obvious.
What are the condition under which this deadlock will happen?
Do you have a testcase we can try?

cheers,
jamal

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#1537361

FromCong Wang <xiyou.wangcong@gmail.com>
Date2016-12-07 01:20 +0100
Message-ID<sLy7L-GS-5@gated-at.bofh.it>
In reply to#1536988
On Tue, Dec 6, 2016 at 5:50 AM, Jamal Hadi Salim <jhs@mojatatu.com> wrote:
> On 16-12-06 12:36 AM, Feng Deng wrote:
>>
>> From: Feng Deng<cxdx2006@gmail.com>
>>
>> release lock before tcf_dump_walker() normal return to avoid deadlock
>>
>
> /Scratching my head.
>
> I am probably missing something obvious.
> What are the condition under which this deadlock will happen?
> Do you have a testcase we can try?

I don't even see a patch (tried Google too).

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