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From: Ben Greear <greearb@candelatech.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Tejun Heo <tj@kernel.org>, Rusty Russell <rusty@rustcorp.com.au>,
	Joe Lawrence <joe.lawrence@stratus.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	stable@vger.kernel.org,
	"Luis R. Rodriguez" <mcgrof@qca.qualcomm.com>,
	Jouni Malinen <jouni@qca.qualcomm.com>,
	Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>,
	Senthil Balasubramanian <senthilb@qca.qualcomm.com>,
	linux-wireless@vger.kernel.org, ath9k-devel@venema.h4ckr.net,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>
Subject: Re: stop_machine lockup issue in 3.9.y.
Date: Wed, 05 Jun 2013 20:41:01 -0700	[thread overview]
Message-ID: <51B004CD.6080007@candelatech.com> (raw)
In-Reply-To: <1370489181.24311.318.camel@edumazet-glaptop>

On 06/05/2013 08:26 PM, Eric Dumazet wrote:
> On Wed, 2013-06-05 at 20:14 -0700, Tejun Heo wrote:
>
>>
>> Ah, so, that's why it's showing up now.  We probably have had the same
>> issue all along but it used to be masked by the softirq limiting.  Do
>> you care to revive the 10 iterations limit so that it's limited by
>> both the count and timing?  We do wanna find out why softirq is
>> spinning indefinitely tho.
>
> Yes, no problem, I can do that.

Limiting it to 5000 fixes my problem, so if you wanted it larger than 10, that would
be fine by me.

I can send a version of my patch easily enough if we can agree on the max number of
loops (and if indeed my version of the patch is acceptable).

Thanks,
Ben


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


  reply	other threads:[~2013-06-06  3:41 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20130604100744.7cdf8777@jlaw-desktop.mno.stratus.com>
     [not found] ` <51AE1B81.20900@candelatech.com>
     [not found]   ` <51AE27D5.7050202@candelatech.com>
     [not found]     ` <87sj0xry1k.fsf@rustcorp.com.au>
     [not found]       ` <20130605071539.GA3429@mtj.dyndns.org>
     [not found]         ` <51AF6E54.3050108@candelatech.com>
     [not found]           ` <20130605184807.GD10693@mtj.dyndns.org>
     [not found]             ` <51AF8D4B.4090407@candelatech.com>
     [not found]               ` <51AF91F5.6090801@candelatech.com>
     [not found]                 ` <51AFA677.9010605@candelatech.com>
2013-06-05 21:11                   ` stop_machine lockup issue in 3.9.y Tejun Heo
2013-06-05 21:33                     ` Ben Greear
2013-06-06  1:34                     ` Eric Dumazet
2013-06-06  3:14                       ` Tejun Heo
2013-06-06  3:26                         ` Eric Dumazet
2013-06-06  3:41                           ` Ben Greear [this message]
2013-06-06  3:46                             ` Eric Dumazet
2013-06-06  3:50                               ` Ben Greear
2013-06-06  4:08                                 ` Eric Dumazet
2013-06-06 20:55                             ` Tejun Heo
2013-06-06 21:15                               ` Ben Greear
2013-06-06 21:17                                 ` Tejun Heo

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