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Message-ID: <20151123195804.GB19072@mtj.duckdns.org>
Date: Mon, 23 Nov 2015 14:58:04 -0500
From: Tejun Heo <tj@...nel.org>
To: Daniel Wagner <daniel.wagner@...-carit.de>
Cc: davem@...emloft.net, pablo@...filter.org, kaber@...sh.net,
kadlec@...ckhole.kfki.hu, daniel@...earbox.net,
nhorman@...driver.co, lizefan@...wei.com, hannes@...xchg.org,
netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
coreteam@...filter.org, cgroups@...r.kernel.org,
linux-kernel@...r.kernel.org, kernel-team@...com, ninasc@...com
Subject: Re: [PATCHSET v3] netfilter, cgroup: implement cgroup2 path match in
xt_cgroup
Hello,
On Mon, Nov 23, 2015 at 10:53:46AM -0500, Tejun Heo wrote:
> > [ 11.594536] ------------[ cut here ]------------
> > [ 11.595274] WARNING: CPU: 1 PID: 1 at kernel/cgroup_pids.c:97 pids_cancel.constprop.6+0x31/0x40()
> > [ 11.595958] Modules linked in:
> > [ 11.596199] CPU: 1 PID: 1 Comm: systemd Not tainted 4.4.0-rc1+ #196
> > [ 11.596689] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014
> > [ 11.597632] ffffffff81f66d8b ffff88007c04bb90 ffffffff8155ccdc 0000000000000000
> > [ 11.598234] ffff88007c04bbc8 ffffffff810de202 ffff8800793dda00 ffff88007a096800
> > [ 11.598877] ffff88007c04bc80 ffff88007a6b6200 0000000000000001 ffff88007c04bbd8
> > [ 11.599547] Call Trace:
> > [ 11.599784] [<ffffffff8155ccdc>] dump_stack+0x4e/0x82
> > [ 11.600197] [<ffffffff810de202>] warn_slowpath_common+0x82/0xc0
> > [ 11.600705] [<ffffffff810de2fa>] warn_slowpath_null+0x1a/0x20
> > [ 11.601208] [<ffffffff8118e261>] pids_cancel.constprop.6+0x31/0x40
> > [ 11.601764] [<ffffffff8118e32d>] pids_can_attach+0x6d/0xf0
>
> Yeah, this is a known problem regarding css's lifetime. Working on
> it. The earlier dump, I think, is likely to have been caused by the
> same issue.
Just posted the fix for this issue. Can you please verify the fix?
http://lkml.kernel.org/g/20151123195541.GA19072@mtj.duckdns.org
Thanks a lot!
--
tejun
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