From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753254AbbKPRaJ (ORCPT ); Mon, 16 Nov 2015 12:30:09 -0500 Received: from mail-pa0-f42.google.com ([209.85.220.42]:35825 "EHLO mail-pa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752541AbbKPRaH (ORCPT ); Mon, 16 Nov 2015 12:30:07 -0500 Subject: Re: Kernel 4.1 hang, apparently in __inet_lookup_established To: Eric Dumazet References: <5726932.6r4XOZ2Km2@rofl> <1443025879.29850.116.camel@edumazet-glaptop2.roam.corp.google.com> <56492A39.2060307@fastly.com> <1447686469.22599.67.camel@edumazet-glaptop2.roam.corp.google.com> Cc: Patrick Schaaf , NETDEV , linux-kernel From: Grant Zhang Message-ID: <564A129F.5060705@fastly.com> Date: Mon, 16 Nov 2015 09:30:07 -0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <1447686469.22599.67.camel@edumazet-glaptop2.roam.corp.google.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 16/11/2015 07:07, Eric Dumazet wrote: > On Sun, 2015-11-15 at 16:58 -0800, Grant Zhang wrote: >> Hi Patrick, >> >> Have you tried the two patches Eric mentioned? One of my 4.1.11 server >> just hanged with very similar stack trace and I am wondering whether the >> aforementioned patches would help. >> >> Thanks, > > linux-4.1.12 definitely contains the fixes. > > 8ae3dfacdd82 inet: fix race in reqsk_queue_unlink() > 31b8abd140ad inet: fix races in reqsk_queue_hash_req() > > Please upgrade to 4.1.13 and you should be fine. > > Thanks. > > Thank you Eric and Patrick. I will upgrade to 4.1.13. Grant