Messages in this thread | | | Date | Tue, 27 Jun 2006 16:12:42 +0200 | From | "Michal Piotrowski" <> | Subject | Re: 2.6.17-mm3 |
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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
Here is a config file http://www.stardust.webpages.pl/files/mm/2.6.17-mm3/mm-config
Regards, Michal
-- Michal K. K. Piotrowski LTG - Linux Testers Group (http://www.stardust.webpages.pl/ltg/wiki/) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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