From: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
To: Stephen Hemminger <shemminger@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>, Ingo Molnar <mingo@elte.hu>,
Arjan van de Ven <arjan@linux.intel.com>,
netdev@vger.kernel.org
Subject: Re: 2.6.17-mm3
Date: Sat, 08 Jul 2006 12:51:28 +0200 [thread overview]
Message-ID: <44AF8E30.2000603@gmail.com> (raw)
In-Reply-To: <20060707192227.1d95ca0e@localhost.localdomain>
Stephen Hemminger napisał(a):
> On Tue, 27 Jun 2006 16:12:42 +0200
> "Michal Piotrowski" <michal.k.k.piotrowski@gmail.com> wrote:
>
>> Hi,
>>
>> On 27/06/06, Andrew Morton <akpm@osdl.org> wrote:
>>> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17/2.6.17-mm3/
>>>
>>>
>> It looks like a skge bug
>>
>> =========================================================
>> [ INFO: possible irq lock inversion dependency detected ]
>> ---------------------------------------------------------
>> swapper/0 just changed the state of lock:
>> (tasklist_lock){..-?}, at: [<c0128092>] send_group_sig_info+0x16/0x34
>> but this lock took another, soft-irq-unsafe lock in the past:
>> (&sig->stats_lock){--..}
>>
>> and interrupts could create inverse lock ordering between them.
>>
>>
>> other info that might help us debug this:
>> no locks held by swapper/0.
>>
>> the first lock's dependencies:
>> -> (tasklist_lock){..-?} ops: 13763 {
>> initial-use at:
>> [<c01353ab>] lock_acquire+0x60/0x80
>> [<c02d0ce2>] _write_lock_irq+0x29/0x38
>> [<c011c4e3>] copy_process+0xea7/0x13c0
>> [<c011cc6a>] do_fork+0x8d/0x18f
>> [<c010136c>] kernel_thread+0x6c/0x74
>> [<c0100518>] rest_init+0x14/0x3c
>> [<c03b6769>] start_kernel+0x388/0x390
>> [<c0100210>] 0xc0100210
>> in-softirq-R at:
>> [..]
>>
>> Here is a dmesg log http://www.stardust.webpages.pl/files/mm/2.6.17-mm3/mm-dmesg
>
>
> That file no longer exists...
It was moved, sorry.
Regards,
Michal
--
Michal K. K. Piotrowski
LTG - Linux Testers Group
(http://www.stardust.webpages.pl/ltg/wiki/)
next prev parent reply other threads:[~2006-07-08 10:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20060627015211.ce480da6.akpm@osdl.org>
2006-06-27 14:12 ` 2.6.17-mm3 Michal Piotrowski
2006-07-08 2:22 ` 2.6.17-mm3 Stephen Hemminger
2006-07-08 10:51 ` Michal Piotrowski [this message]
2006-07-09 10:01 ` 2.6.17-mm3 Herbert Xu
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