From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: ebiederm@xmission.com, acme@redhat.com,
torvalds@linux-foundation.org, mhocko@suse.cz, mingo@elte.hu,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, xemul@openvz.org, daniel.lezcano@free.fr
Subject: Re: [PATCH] tcp: fix inet_twsk_deschedule()
Date: Sat, 19 Feb 2011 18:59:46 -0800 (PST) [thread overview]
Message-ID: <20110219.185946.193690650.davem@davemloft.net> (raw)
In-Reply-To: <1298104556.8559.21.camel@edumazet-laptop>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sat, 19 Feb 2011 09:35:56 +0100
> [PATCH] tcp: fix inet_twsk_deschedule()
>
> Eric W. Biederman reported a lockdep splat in inet_twsk_deschedule()
>
> This is caused by inet_twsk_purge(), run from process context,
> and commit 575f4cd5a5b6394577 (net: Use rcu lookups in inet_twsk_purge.)
> removed the BH disabling that was necessary.
>
> Add the BH disabling but fine grained, right before calling
> inet_twsk_deschedule(), instead of whole function.
>
> With help from Linus Torvalds and Eric W. Biederman
>
> Reported-by: Eric W. Biederman <ebiederm@xmission.com>
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
> CC: Daniel Lezcano <daniel.lezcano@free.fr>
> CC: Pavel Emelyanov <xemul@openvz.org>
> CC: Arnaldo Carvalho de Melo <acme@redhat.com>
> CC: stable <stable@kernel.org> (# 2.6.33+)
Applied, thanks Eric.
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next prev parent reply other threads:[~2011-02-20 2:59 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-16 18:52 BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4 Michal Hocko
2011-02-16 19:37 ` Ingo Molnar
2011-02-16 19:50 ` Linus Torvalds
2011-02-16 20:09 ` Linus Torvalds
2011-02-16 20:51 ` Linus Torvalds
2011-02-17 9:09 ` Michal Hocko
2011-02-17 16:13 ` Linus Torvalds
2011-02-17 16:26 ` Michal Hocko
2011-02-17 16:35 ` Ingo Molnar
2011-02-17 18:57 ` Eric W. Biederman
2011-02-17 19:11 ` Linus Torvalds
2011-02-17 19:31 ` Eric W. Biederman
2011-02-18 3:16 ` Eric W. Biederman
2011-02-18 4:30 ` Linus Torvalds
2011-02-18 4:36 ` David Miller
2011-02-18 6:25 ` Eric Dumazet
2011-02-18 7:29 ` Eric Dumazet
2011-02-18 8:54 ` [PATCH 1/2] net: dont leave active on stack LIST_HEAD Eric Dumazet
2011-02-18 20:14 ` David Miller
2011-02-18 4:38 ` BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4 Linus Torvalds
2011-02-18 4:40 ` David Miller
2011-02-18 4:57 ` Linus Torvalds
2011-02-18 8:29 ` Eric W. Biederman
2011-02-18 5:20 ` Eric W. Biederman
2011-02-18 8:41 ` Eric Dumazet
2011-02-18 8:59 ` [PATCH 2/2] net: deinit automatic LIST_HEAD Eric Dumazet
2011-02-18 20:14 ` David Miller
2011-02-18 12:29 ` BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4 Michal Hocko
2011-02-18 16:26 ` Michal Hocko
2011-02-18 16:39 ` Linus Torvalds
2011-02-18 18:08 ` Eric W. Biederman
2011-02-18 18:48 ` Linus Torvalds
2011-02-18 19:01 ` Arnaldo Carvalho de Melo
2011-02-18 19:11 ` Arnaldo Carvalho de Melo
2011-02-18 20:38 ` Eric W. Biederman
2011-02-19 8:35 ` [PATCH] tcp: fix inet_twsk_deschedule() Eric Dumazet
2011-02-20 2:59 ` David Miller [this message]
2011-02-18 19:13 ` BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4 Eric Dumazet
2011-02-18 19:56 ` David Miller
2011-02-19 6:22 ` Eric W. Biederman
2011-02-19 15:33 ` Linus Torvalds
2011-02-20 2:01 ` Eric W. Biederman
2011-02-20 6:15 ` Linus Torvalds
2011-02-20 8:27 ` Eric Dumazet
2011-02-20 19:53 ` David Miller
2011-02-20 21:34 ` Eric W. Biederman
2011-02-18 8:54 ` Michal Hocko
2011-02-20 12:43 ` Ingo Molnar
2011-02-17 16:36 ` Eric Dumazet
2011-02-17 17:07 ` Linus Torvalds
2011-02-17 19:36 ` Eric Dumazet
2011-02-17 20:18 ` Linus Torvalds
2011-02-16 20:13 ` Ingo Molnar
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