* Re: 2.6.17-mm3 [not found] <20060627015211.ce480da6.akpm@osdl.org> @ 2006-06-27 14:12 ` Michal Piotrowski 2006-07-08 2:22 ` 2.6.17-mm3 Stephen Hemminger 0 siblings, 1 reply; 4+ messages in thread From: Michal Piotrowski @ 2006-06-27 14:12 UTC (permalink / raw) To: Andrew Morton Cc: Stephen Hemminger, Ingo Molnar, Arjan van de Ven, linux-kernel, netdev 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/) ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 2.6.17-mm3 2006-06-27 14:12 ` 2.6.17-mm3 Michal Piotrowski @ 2006-07-08 2:22 ` Stephen Hemminger 2006-07-08 10:51 ` 2.6.17-mm3 Michal Piotrowski 0 siblings, 1 reply; 4+ messages in thread From: Stephen Hemminger @ 2006-07-08 2:22 UTC (permalink / raw) To: Michal Piotrowski; +Cc: Andrew Morton, Ingo Molnar, Arjan van de Ven, netdev 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... > Here is a config file > http://www.stardust.webpages.pl/files/mm/2.6.17-mm3/mm-config > > Regards, > Michal > -- If one would give me six lines written by the hand of the most honest man, I would find something in them to have him hanged. -- Cardinal Richlieu ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 2.6.17-mm3 2006-07-08 2:22 ` 2.6.17-mm3 Stephen Hemminger @ 2006-07-08 10:51 ` Michal Piotrowski 2006-07-09 10:01 ` 2.6.17-mm3 Herbert Xu 0 siblings, 1 reply; 4+ messages in thread From: Michal Piotrowski @ 2006-07-08 10:51 UTC (permalink / raw) To: Stephen Hemminger; +Cc: Andrew Morton, Ingo Molnar, Arjan van de Ven, netdev 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/) ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 2.6.17-mm3 2006-07-08 10:51 ` 2.6.17-mm3 Michal Piotrowski @ 2006-07-09 10:01 ` Herbert Xu 0 siblings, 0 replies; 4+ messages in thread From: Herbert Xu @ 2006-07-09 10:01 UTC (permalink / raw) To: Michal Piotrowski; +Cc: shemminger, akpm, mingo, arjan, netdev Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote: > > It was moved, sorry. I fail to spot any relevant backtraces for skge or indeed any part of the networking stack. Ingo/Arjan, perhaps you guys can figure out what's wrong here. In future perhaps you should consider posting the dmesg to the list directly. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt ^ permalink raw reply [flat|nested] 4+ messages in thread
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[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 ` 2.6.17-mm3 Michal Piotrowski
2006-07-09 10:01 ` 2.6.17-mm3 Herbert Xu
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