From: Andrew Morton <akpm@osdl.org>
To: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: linux-kernel@vger.kernel.org,
Harald Welte <laforge@netfilter.org>,
netdev@vger.kernel.org
Subject: Re: 2.6.15-rc2-mm1
Date: Wed, 23 Nov 2005 11:22:18 -0800 [thread overview]
Message-ID: <20051123112218.73f68926.akpm@osdl.org> (raw)
In-Reply-To: <6bffcb0e0511230615y7531e268n@mail.gmail.com>
Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote:
>
> Debug: sleeping function called from invalid context at
> include/asm/semaphore.h:123
> in_atomic():1, irqs_disabled():0
> [<c0103be6>] dump_stack+0x17/0x19
> [<c011a0c3>] __might_sleep+0x9c/0xae
> [<fd9a090d>] translate_table+0x147/0xc14 [ip_tables]
> [<fd9a2b2a>] ipt_register_table+0x93/0x20d [ip_tables]
> [<f98fe027>] init+0x27/0x9e [iptable_filter]
> [<c01376d0>] sys_init_module+0xd7/0x26c
> [<c0102cc7>] sysenter_past_esp+0x54/0x75
> ---------------------------
> | preempt count: 00000001 ]
> | 1 level deep critical section nesting:
> ----------------------------------------
> .. [<fd9a2aca>] .... ipt_register_table+0x33/0x20d [ip_tables]
> .....[<f98fe027>] .. ( <= init+0x27/0x9e [iptable_filter])
>
ipt_register_table() does get_cpu() then calls translate_table(), and
somewhere under translate_table() we do something which sleeps, only I'm not
sure what it is - netfilter likes to hide things in unexpected places.
check_entry() will do sleepy things under that get_cpu(), but that doesn't
seem to be in this particular call chain.
Anyway, the new get_cpu() in ipt_register_table() is the problem.
next parent reply other threads:[~2005-11-23 19:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20051123033550.00d6a6e8.akpm@osdl.org>
[not found] ` <6bffcb0e0511230615y7531e268n@mail.gmail.com>
2005-11-23 19:22 ` Andrew Morton [this message]
2005-11-24 9:04 ` 2.6.15-rc2-mm1 Harald Welte
[not found] ` <20051123175045.GA6760@stiffy.osknowledge.org>
2005-11-23 19:38 ` 2.6.15-rc2-mm1 Andrew Morton
2005-11-24 2:06 ` Mouse issues in -mm Frank Sorenson
2005-11-24 3:26 ` Dmitry Torokhov
2005-11-24 6:14 ` Frank Sorenson
2005-11-25 22:31 ` Dmitry Torokhov
2005-11-24 9:40 ` Marc Koschewski
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