Re: 2.6.17-mm3

[Michal Piotrowski <michal.k.k.piotrowski@gmail.com>]

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/)