From: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
To: Michal Piotrowski <michal.k.k.piotrowski@googlemail.com>
Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.21-rc5-rt4 inconsistent lock state
Date: Thu, 29 Mar 2007 20:18:30 +0200 [thread overview]
Message-ID: <460C02F6.5050903@googlemail.com> (raw)
In-Reply-To: <460BB361.1000002@googlemail.com>
Michal Piotrowski napisał(a):
> Hi,
[..]
> http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.21-rc5-rt4/rt-config
> http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.21-rc5-rt4/rt-dmesg
>
I just fixed an isic build in AT :)
BUG: isic:11396 task might have lost a preemption check!
[<c0105470>] dump_trace+0x78/0x21a
[<c0105647>] show_trace_log_lvl+0x35/0x54
[<c0105dcc>] show_trace+0x2c/0x2e
[<c0105e93>] dump_stack+0x29/0x2b
[<c0121d64>] preempt_enable_no_resched+0x5c/0x5e
[<c0218390>] debug_smp_processor_id+0xb0/0xb8
[<fd98a83f>] nf_conntrack_in+0x39c/0x468 [nf_conntrack]
[<fd999316>] ipv4_conntrack_local+0x61/0x67 [nf_conntrack_ipv4]
[<c031c494>] nf_iterate+0x40/0x71
[<c031c61a>] nf_hook_slow+0x5c/0xd7
[<c033f066>] raw_sendmsg+0x518/0x6ee
[<c0346819>] inet_sendmsg+0x4b/0x55
[<c030109b>] sock_sendmsg+0xf7/0x114
[<c0301b34>] sys_sendto+0xe5/0x105
[<c0302521>] sys_socketcall+0x17e/0x254
[<c010432d>] syscall_call+0x7/0xb
[<b7f0c410>] 0xb7f0c410
=======================
---------------------------
| preempt count: 00000000 ]
| 0-level deep critical section nesting:
----------------------------------------
BUG: using smp_processor_id() in preemptible [00000000] code: isic/16471
caller is nf_conntrack_in+0xd0/0x468 [nf_conntrack]
[<c0105470>] dump_trace+0x78/0x21a
[<c0105647>] show_trace_log_lvl+0x35/0x54
[<c0105dcc>] show_trace+0x2c/0x2e
[<c0105e93>] dump_stack+0x29/0x2b
[<c021838b>] debug_smp_processor_id+0xab/0xb8
[<fd98a573>] nf_conntrack_in+0xd0/0x468 [nf_conntrack]
[<fd999316>] ipv4_conntrack_local+0x61/0x67 [nf_conntrack_ipv4]
[<c031c494>] nf_iterate+0x40/0x71
[<c031c61a>] nf_hook_slow+0x5c/0xd7
[<c033f066>] raw_sendmsg+0x518/0x6ee
[<c0346819>] inet_sendmsg+0x4b/0x55
[<c030109b>] sock_sendmsg+0xf7/0x114
[<c0301b34>] sys_sendto+0xe5/0x105
[<c0302521>] sys_socketcall+0x17e/0x254
[<c010432d>] syscall_call+0x7/0xb
[<b7f01410>] 0xb7f01410
=======================
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c0359d9e>] .... __spin_lock+0x1a/0x59
.....[<c016321a>] .. ( <= handle_fasteoi_irq+0x27/0xdf)
l *0xc0359d9e
0xc0359d9e is in __spin_lock (kernel/spinlock.c:218).
213 EXPORT_SYMBOL(__write_lock_bh);
214
215 void __lockfunc __spin_lock(raw_spinlock_t *lock)
216 {
217 preempt_disable();
218 spin_acquire(&lock->dep_map, 0, 0, _RET_IP_);
219 _raw_spin_lock(lock);
220 }
221
222 EXPORT_SYMBOL(__spin_lock);
l *0xc016321a
0xc016321a is in handle_fasteoi_irq (kernel/irq/chip.c:405).
400 struct irqaction *action;
401 irqreturn_t action_ret;
402
403 spin_lock(&desc->lock);
404
405 if (unlikely(desc->status & IRQ_INPROGRESS))
406 goto out;
407
408 desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
409 kstat_cpu(cpu).irqs[irq]++;
BUG: using smp_processor_id() in preemptible [00000000] code: isic/16471
caller is nf_conntrack_in+0x43d/0x468 [nf_conntrack]
[<c0105470>] dump_trace+0x78/0x21a
[<c0105647>] show_trace_log_lvl+0x35/0x54
[<c0105dcc>] show_trace+0x2c/0x2e
[<c0105e93>] dump_stack+0x29/0x2b
[<c021838b>] debug_smp_processor_id+0xab/0xb8
[<fd98a8e0>] nf_conntrack_in+0x43d/0x468 [nf_conntrack]
[<fd999316>] ipv4_conntrack_local+0x61/0x67 [nf_conntrack_ipv4]
[<c031c494>] nf_iterate+0x40/0x71
[<c031c61a>] nf_hook_slow+0x5c/0xd7
[<c033f066>] raw_sendmsg+0x518/0x6ee
[<c0346819>] inet_sendmsg+0x4b/0x55
[<c030109b>] sock_sendmsg+0xf7/0x114
[<c0301b34>] sys_sendto+0xe5/0x105
[<c0302521>] sys_socketcall+0x17e/0x254
[<c010432d>] syscall_call+0x7/0xb
[<b7f01410>] 0xb7f01410
=======================
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c0218336>] .... debug_smp_processor_id+0x56/0xb8
.....[<fd98a8e0>] .. ( <= nf_conntrack_in+0x43d/0x468 [nf_conntrack])
l *0xc0218336
0xc0218336 is in debug_smp_processor_id (lib/smp_processor_id.c:42).
37 /*
38 * Avoid recursion:
39 */
40 preempt_disable();
41
42 if (!printk_ratelimit())
43 goto out_enable;
44
45 printk(KERN_ERR "BUG: using smp_processor_id() in preemptible [%08x] code: %s/%d\n", preempt_count()-1, current->comm, current->pid);
46 print_symbol("caller is %s\n", (long)__builtin_return_address(0));
http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.21-rc5-rt4/rt-dmesg2
Regards,
Michal
--
Michal K. K. Piotrowski
LTG - Linux Testers Group (PL)
(http://www.stardust.webpages.pl/ltg/)
LTG - Linux Testers Group (EN)
(http://www.stardust.webpages.pl/linux_testers_group_en/)
prev parent reply other threads:[~2007-03-29 18:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-29 12:38 2.6.21-rc5-rt4 inconsistent lock state Michal Piotrowski
2007-03-29 18:18 ` Michal Piotrowski [this message]
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