linux-kernel - Re: deadlock between cpu_stopper & native_flush_tlb_others()->smp_call_function

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Message-ID: <20140305174942.3efc053f@nial.usersys.redhat.com>
Date:	Wed, 5 Mar 2014 17:49:42 +0100
From:	Igor Mammedov <imammedo@...hat.com>
To:	Rik van Riel <riel@...hat.com>
Cc:	linux-kernel@...r.kernel.org, prarit@...hat.com, mgorman@...e.de,
	peterz@...radead.org, alex.shi@...el.com, hpa@...or.com
Subject: Re: deadlock between cpu_stopper &
 native_flush_tlb_others()->smp_call_function_many()

On Mon, 03 Mar 2014 11:45:04 -0500
Rik van Riel <riel@...hat.com> wrote:

> On 03/03/2014 11:43 AM, Igor Mammedov wrote:
> > It looks like I hit a deadlock between smp_call_function_many() and
> > cpu_stopper threads.
> 
> > Are there any suggestions on how to fix this nicely?
> 
> This patch should fix it:
> 
> https://lkml.org/lkml/2014/2/28/194

I've just tried it and it doesn't fix issue.
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