From: Oleg Nesterov <oleg@redhat.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Justin Capella <justincapella@gmail.com>,
Andrew Lutomirski <luto@kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re: rwsem exit_to_usermode
Date: Thu, 11 Feb 2016 21:03:57 +0100 [thread overview]
Message-ID: <20160211200356.GA10716@redhat.com> (raw)
In-Reply-To: <CALCETrV21Y_ugoX-vTFpnTJyd1_7FSmYB+JOMtEZPuQ7UqUANQ@mail.gmail.com>
On 02/10, Andy Lutomirski wrote:
>
> On Wed, Feb 10, 2016 at 5:05 PM, Justin Capella <justincapella@gmail.com> wrote:
> > http://i.imgur.com/gKamNV3.jpg
> >
> > I encountered this deadlock situation, let me know if there is additional
> > info I can provide, if you're interested...
>
> You're the second person in 24 hours to privately report a bug in that code :-/
Let me add lkml,
> This looks like it's a signal thing, not an entry/exit thing, though.
Looks like someone holds cgroup_threadgroup_rwsem for writing.
Which kernel version? It would be nice to look at sysrq-T output...
Oleg.
parent reply other threads:[~2016-02-11 20:04 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <CALCETrV21Y_ugoX-vTFpnTJyd1_7FSmYB+JOMtEZPuQ7UqUANQ@mail.gmail.com>]
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