From: Tejun Heo <tj@kernel.org>
To: Luis Henriques <henrix@camandro.org>
Cc: Zefan Li <lizefan@huawei.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Johannes Weiner <jweiner@fb.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: NULL pointer dereference in cgroup
Date: Mon, 13 Mar 2017 13:04:59 -0400 [thread overview]
Message-ID: <20170313170459.GA15709@htj.duckdns.org> (raw)
In-Reply-To: <20170308184616.553hndqxd7lljqkq@charon>
Hello,
On Wed, Mar 08, 2017 at 06:46:16PM +0000, Luis Henriques wrote:
> Hi,
>
> I've seen this only once, and can't reproduce it. But here it is anyway:
>
> https://postimg.org/image/pn94k1yov
>
> (Not sure png files are accepted on LKML.)
>
> This occurred in a VM while booting 4.11.0-rc1
It was trying to migrate a process and encountered a NULL deref while
trying to find the destination css_set. Unfortunately, it's difficult
to tell what went wrong with just the posted backtrace. If you built
the kernel with debuginfo, the output of addr2line could help quite a
bit.
Thanks.
--
tejun
prev parent reply other threads:[~2017-03-13 17:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-08 18:46 NULL pointer dereference in cgroup Luis Henriques
2017-03-08 23:30 ` Eric W. Biederman
2017-03-09 8:39 ` Luis Henriques
2017-03-13 17:04 ` Tejun Heo [this message]
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