From: Christoph Lameter <cl@linux.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
Sasha Levin <levinsasha928@gmail.com>,
Dave Jones <davej@redhat.com>, davem <davem@davemloft.net>,
Pekka Enberg <penberg@kernel.org>, Matt Mackall <mpm@selenic.com>,
kaber@trash.net, pablo@netfilter.org,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
netfilter-devel@vger.kernel.org, netdev <netdev@vger.kernel.org>
Subject: Re: Hung task when calling clone() due to netfilter/slab
Date: Thu, 19 Jan 2012 20:03:51 -0600 (CST) [thread overview]
Message-ID: <alpine.DEB.2.00.1201191959540.14480@router.home> (raw)
In-Reply-To: <m14nvr2vbu.fsf@fess.ebiederm.org>
On Thu, 19 Jan 2012, Eric W. Biederman wrote:
> Oh. I see. The problem is calling kobject_uevent (which happens to
> live in slabs sysfs_slab_add) with a lock held. And kobject_uevent
> makes a blocking call to userspace.
>
> No locks held seems to be a good policy on that one.
Well we can just remove that call to kobject_uevent instead then. Does it
do anything useful? Cannot remember why we put that in there.
next prev parent reply other threads:[~2012-01-20 2:04 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-14 16:30 Hung task when calling clone() due to netfilter/slab Sasha Levin
2012-01-14 17:10 ` Eric Dumazet
2012-01-14 17:18 ` Eric Dumazet
2012-01-15 12:59 ` Sasha Levin
2012-01-15 17:25 ` Eric Dumazet
2012-01-17 15:12 ` Christoph Lameter
2012-01-17 15:20 ` Eric Dumazet
2012-01-17 15:27 ` Christoph Lameter
2012-01-17 15:30 ` Eric Dumazet
2012-01-17 16:04 ` Christoph Lameter
2012-01-17 22:22 ` Christoph Lameter
2012-01-19 21:43 ` Eric W. Biederman
2012-01-19 22:15 ` Eric W. Biederman
2012-01-20 2:03 ` Christoph Lameter [this message]
2012-01-20 2:31 ` Eric W. Biederman
2012-01-20 14:49 ` Christoph Lameter
2012-01-20 20:40 ` Eric W. Biederman
2012-02-01 8:05 ` Pekka Enberg
2012-02-01 17:32 ` Eric W. Biederman
2012-02-01 8:07 ` Pekka Enberg
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