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SubjectRe: [Patch] restore the RCU callback to defer put_task_struct() Re: Problems with 2.6.17-rt8
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On Fri, Aug 11, 2006 at 08:00:50AM -0700, Robert Crocombe wrote:
> On 8/10/06, hui Bill Huey <billh@gnuppy.monkey.org> wrote:
> >Patch included:
>
> Just tried it.

Yeah, this bug is different from the one I've been fixing. Looks like
it's in the softirq system. Let me see.

I'll look through your config and see if anything is different with my
setup that's notable.

bill


> kjournald/1119[CPU#3]: BUG in debug_rt_mutex_unlock at
> kernel/rtmutex-debug.c:471
>
> Call Trace:
> <ffffffff80487593>{_raw_spin_lock_irqsave+34}
> <ffffffff8022cd9f>{__WARN_ON+105}
> <ffffffff8022cd5a>{__WARN_ON+36}
> <ffffffff8024897b>{debug_rt_mutex_unlock+204}
> <ffffffff80486761>{rt_lock_slowunlock+30}
> <ffffffff804872d6>{__lock_text_start+14}
> <ffffffff80279461>{kmem_cache_alloc+207}
> <ffffffff8025b504>{mempool_alloc_slab+22}
> <ffffffff8025b8f3>{mempool_alloc+80}
> <ffffffff80209a6d>{mcount+45}
> <ffffffff80283332>{bio_alloc_bioset+40}
> <ffffffff80283452>{bio_alloc+21}
> <ffffffff8027fa28>{submit_bh+142}
> <ffffffff80280cd3>{ll_rw_block+166}
> <ffffffff802d19cf>{journal_commit_transaction+1016}
> <ffffffff80248fa5>{constant_test_bit+9}
> <ffffffff80487aa0>{_raw_spin_unlock+51}
> <ffffffff80486789>{rt_lock_slowunlock+70}
> <ffffffff804872d6>{__lock_text_start+14}
> <ffffffff80235974>{try_to_del_timer_sync+90}
> <ffffffff802d5fb2>{kjournald+207}
> <ffffffff80240107>{autoremove_wake_function+0}
> <ffffffff802d5ee3>{kjournald+0}
> <ffffffff8023fcc5>{keventd_create_kthread+0}
> <ffffffff8023ffca>{kthread+224}
> <ffffffff802273bf>{schedule_tail+198}
> <ffffffff8020ae12>{child_rip+8}
> <ffffffff8023fcc5>{keventd_create_kthread+0}
> <ffffffff8023feea>{kthread+0}
> <ffffffff8020ae0a>{child_rip+0}


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