linux-kernel - Re: Soft lockup issue in Linux 4.1.9

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Message-ID: <560E2994.5020400@tomt.net>
Date:	Fri, 2 Oct 2015 08:52:04 +0200
From:	Andre Tomt <andre@...t.net>
To:	Eric Dumazet <edumazet@...gle.com>,
	Holger Hoffstätte 
	<holger.hoffstaette@...glemail.com>
Cc:	"David S. Miller" <davem@...emloft.net>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Stephen Hemminger <stephen@...workplumber.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	LKML <linux-kernel@...r.kernel.org>, stable@...r.kernel.org,
	netdev <netdev@...r.kernel.org>
Subject: Re: Soft lockup issue in Linux 4.1.9

On 01. okt. 2015 13:52, Eric Dumazet wrote:
> On Thu, Oct 1, 2015 at 4:43 AM, Holger Hoffstätte
> <holger.hoffstaette@...glemail.com> wrote:
>> On 10/01/15 13:29, Eric Dumazet wrote:
>
>>> commit 83fccfc3940c4a2db90fd7e7079f5b465cd8c6af
>>> Author: Eric Dumazet <edumazet@...gle.com>
>>> Date:   Thu Aug 13 15:44:51 2015 -0700
>>>
>>>      inet: fix potential deadlock in reqsk_queue_unlink()
<snip>
>> Whohoo! It applies/builds cleanly to 4.1.10-rc1 and is running as
>> we speak. Let's hope that this fixes the lockups.
>>
>
> It definitely should help !
>
> David, since patch is not yet seen on
> http://patchwork.ozlabs.org/bundle/davem/stable/?state=*
> could you please add it to your queue ?

Seems to fix it for me as well. 3 systems have been running varying 
types of production-like loads with it for 14+ hours without hanging.
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