From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <toke@toke.dk>
Received: from mail.toke.dk (mail.toke.dk [52.28.52.200])
 (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))
 (No client certificate requested)
 by lists.bufferbloat.net (Postfix) with ESMTPS id 795283CB38
 for <bloat@lists.bufferbloat.net>; Sun,  1 Apr 2018 11:45:25 -0400 (EDT)
From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= <toke@toke.dk>
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=toke.dk; s=20161023;
 t=1522597524; bh=c/IRrkXMO9MvBVAmnrbopzZsTkywruWkGBCW1Bre5Qw=;
 h=From:To:Subject:In-Reply-To:References:Date:From;
 b=gCrWH0YXOJe2RgzkhvWCtJauQ8S8J7U1f9lBh8NdaygaBzX75Jr70KjrMKRrcYDtI
 IIKHwZTcHj47zl3KQRSy2QIIn4pJSSz/2IKiz3TiUDDUGPBWfsnbLezbSZcy4uwB5B
 Izop3qpPtAGRRh2iH6zJbgANic0DxoaCNs6m8fvsVzctybA4UWAA6nMsGReV4vQXwK
 Vxbj/nEj0s+K16cRBtByP734PRw5ea+TBbsLMnX+kzmwhlBVzgfeSRm2yElZTJ+na4
 2j8TzHP03RdMabeAeeHwOtgXh2d3P95EiEAVbKNJQMLtW/czwB6eD7VEqSVNwFcByA
 YekTFemAhxnSg==
To: Eric Dumazet <eric.dumazet@gmail.com>, bloat@lists.bufferbloat.net
In-Reply-To: <efdbeb6f-3c1e-5c95-954c-5f81e2d1bb5f@gmail.com>
References: <AECEEEAA-0F4A-43D4-B46F-65DE9E593853@gmail.com>
 <87y3i8hvmy.fsf@toke.dk> <3DCC1B31-2A54-4306-A355-7DBD15184C5F@gmail.com>
 <efdbeb6f-3c1e-5c95-954c-5f81e2d1bb5f@gmail.com>
Date: Sun, 01 Apr 2018 17:45:21 +0200
X-Clacks-Overhead: GNU Terry Pratchett
Message-ID: <87vadbhqwe.fsf@toke.dk>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Subject: Re: [Bloat] bufferbloat.net server having troubles?
X-BeenThere: bloat@lists.bufferbloat.net
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: General list for discussing Bufferbloat <bloat.lists.bufferbloat.net>
List-Unsubscribe: <https://lists.bufferbloat.net/options/bloat>,
 <mailto:bloat-request@lists.bufferbloat.net?subject=unsubscribe>
List-Archive: <https://lists.bufferbloat.net/pipermail/bloat>
List-Post: <mailto:bloat@lists.bufferbloat.net>
List-Help: <mailto:bloat-request@lists.bufferbloat.net?subject=help>
List-Subscribe: <https://lists.bufferbloat.net/listinfo/bloat>,
 <mailto:bloat-request@lists.bufferbloat.net?subject=subscribe>
X-List-Received-Date: Sun, 01 Apr 2018 15:45:25 -0000

Eric Dumazet <eric.dumazet@gmail.com> writes:

> On 03/31/2018 12:54 PM, Jonathan Morton wrote:
>>> On 31 Mar, 2018, at 10:50 pm, Toke H=C3=B8iland-J=C3=B8rgensen <toke@to=
ke.dk> wrote:
>>>
>>> Yeah, the box running the web server is having some issues with NULL
>>> pointer dereferences in tcp_push() in the kernel crashing processes
>>> running TCP. Haven't been able to figure out why :/
>>=20
>> Maybe build/install a new kernel and reboot?
>>=20
>> Possibility exists of hardware failure, too.  Less likely, perhaps, but =
if you don't have ECC...
>>=20
>
> Nope, known bug on stable kernels.
>
> Please upgrade or downgrade.

Ah, saw that in the changelog for 4.14.32, and was hoping it was a fix
for the issue I was seeing. But haven't had time to upgrade yet. Thanks
for confirming that it is! I'll go upgrade I guess :)

-Toke