2.6.20-rt8
From: Michal Piotrowski
Date: Fri Feb 16 2007 - 17:36:09 EST
Hi Ingo,
Test scenario:
- normal boot
- echo shutdown > /sys/power/disk; echo disk > /sys/power/state
- echo platform > /sys/power/disk; echo disk > /sys/power/state
======================================================
[ INFO: hard-safe -> hard-unsafe lock order detected ]
[ 2.6.20-rt8 #1
------------------------------------------------------
softirq-timer/0/5 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
((raw_spinlock_t *)(&lock->wait_lock)){--..}, at: [<c031404f>] rt_spin_lock_slowlock+0x21/0x18f
and this task is already holding:
(xtime_lock){+...}, at: [<c012aa40>] run_timer_softirq+0x47/0x9ad
which would create a new lock dependency:
(xtime_lock){+...} -> ((raw_spinlock_t *)(&lock->wait_lock)){--..}
but this new dependency connects a hard-irq-safe lock:
(xtime_lock){+...}
... which became hard-irq-safe at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e13d>] __lock_acquire+0x3b3/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c013a7eb>] tick_periodic+0x15/0x68
[<c013a856>] tick_handle_periodic+0x18/0x66
[<c010689b>] timer_interrupt+0x31/0x38
[<c0158112>] handle_IRQ_event+0x63/0x101
[<c0159a6b>] handle_level_irq+0xa7/0xf0
[<c0105e0e>] do_IRQ+0xc0/0xea
[<c0103ae6>] common_interrupt+0x2e/0x34
[<c031547f>] __spin_unlock_irqrestore+0x42/0x59
[<c0158879>] setup_irq+0x170/0x1e0
[<c04937b5>] time_init_hook+0x19/0x1b
[<c048bd8c>] hpet_time_init+0xd/0xf
[<c048866c>] start_kernel+0x276/0x42f
[<ffffffff>] 0xffffffff
to a hard-irq-unsafe lock:
((raw_spinlock_t *)(&lock->wait_lock)){--..}
... which became hard-irq-unsafe at:
... [<c013d37c>] mark_lock+0x6b/0x40b
[<c013d766>] mark_held_locks+0x4a/0x67
[<c013d949>] trace_hardirqs_on+0x10d/0x150
[<c031547d>] __spin_unlock_irqrestore+0x40/0x59
[<c0143445>] task_blocks_on_rt_mutex+0x1c4/0x20a
[<c03140e7>] rt_spin_lock_slowlock+0xb9/0x18f
[<c03147e8>] rt_spin_lock+0xe/0x38
[<c011d48b>] complete+0x14/0x57
[<c011ed39>] migration_thread+0x1a4/0x1e5
[<c0134694>] kthread+0xb5/0xe1
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
other info that might help us debug this:
1 lock held by softirq-timer/0/5:
#0: (xtime_lock){+...}, at: [<c012aa40>] run_timer_softirq+0x47/0x9ad
the hard-irq-safe lock's dependencies:
-> (xtime_lock){+...} ops: 9269 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c04946cc>] timekeeping_init+0x25/0x143
[<c04885be>] start_kernel+0x1c8/0x42f
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e13d>] __lock_acquire+0x3b3/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c013a7eb>] tick_periodic+0x15/0x68
[<c013a856>] tick_handle_periodic+0x18/0x66
[<c010689b>] timer_interrupt+0x31/0x38
[<c0158112>] handle_IRQ_event+0x63/0x101
[<c0159a6b>] handle_level_irq+0xa7/0xf0
[<c0105e0e>] do_IRQ+0xc0/0xea
[<c0103ae6>] common_interrupt+0x2e/0x34
[<c031547f>] __spin_unlock_irqrestore+0x42/0x59
[<c0158879>] setup_irq+0x170/0x1e0
[<c04937b5>] time_init_hook+0x19/0x1b
[<c048bd8c>] hpet_time_init+0xd/0xf
[<c048866c>] start_kernel+0x276/0x42f
[<ffffffff>] 0xffffffff
}
... key at: [<c046eb18>] xtime_lock+0x18/0x80
-> (clocksource_lock){....} ops: 4435 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c0138e53>] clocksource_get_next+0xd/0x43
[<c04946dc>] timekeeping_init+0x35/0x143
[<c04885be>] start_kernel+0x1c8/0x42f
[<ffffffff>] 0xffffffff
}
... key at: [<c046ed94>] clocksource_lock+0x14/0x80
... acquired at:
[<c013c2b3>] add_lock_to_list+0x65/0x89
[<c013e79c>] __lock_acquire+0xa12/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c0138e53>] clocksource_get_next+0xd/0x43
[<c04946dc>] timekeeping_init+0x35/0x143
[<c04885be>] start_kernel+0x1c8/0x42f
[<ffffffff>] 0xffffffff
-> (logbuf_lock){....} ops: 1563 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c01229b2>] release_console_sem+0x3c/0x1c5
[<c0123148>] vprintk+0x2cd/0x330
[<c01231c6>] printk+0x1b/0x1d
[<c0488456>] start_kernel+0x60/0x42f
[<ffffffff>] 0xffffffff
}
... key at: [<c046e694>] logbuf_lock+0x14/0x80
... acquired at:
[<c013c2b3>] add_lock_to_list+0x65/0x89
[<c013e79c>] __lock_acquire+0xa12/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c01229b2>] release_console_sem+0x3c/0x1c5
[<c0123148>] vprintk+0x2cd/0x330
[<c01231c6>] printk+0x1b/0x1d
[<c012b069>] run_timer_softirq+0x670/0x9ad
[<c0127837>] ksoftirqd+0x121/0x205
[<c0134694>] kthread+0xb5/0xe1
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
the hard-irq-unsafe lock's dependencies:
-> ((raw_spinlock_t *)(&lock->wait_lock)){--..} ops: 151167 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c031404f>] rt_spin_lock_slowlock+0x21/0x18f
[<c03147e8>] rt_spin_lock+0xe/0x38
[<c012a534>] lock_timer_base+0x18/0x35
[<c012a97a>] __mod_timer+0x20/0x9f
[<c012bb22>] mod_timer+0x21/0x27
[<c049c99c>] con_init+0xb9/0x203
[<c049c3f7>] console_init+0x1e/0x2c
[<c04885eb>] start_kernel+0x1f5/0x42f
[<ffffffff>] 0xffffffff
softirq-on-W at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013d766>] mark_held_locks+0x4a/0x67
[<c013d961>] trace_hardirqs_on+0x125/0x150
[<c031547d>] __spin_unlock_irqrestore+0x40/0x59
[<c0143445>] task_blocks_on_rt_mutex+0x1c4/0x20a
[<c03140e7>] rt_spin_lock_slowlock+0xb9/0x18f
[<c03147e8>] rt_spin_lock+0xe/0x38
[<c011d48b>] complete+0x14/0x57
[<c011ed39>] migration_thread+0x1a4/0x1e5
[<c0134694>] kthread+0xb5/0xe1
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
hardirq-on-W at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013d766>] mark_held_locks+0x4a/0x67
[<c013d949>] trace_hardirqs_on+0x10d/0x150
[<c031547d>] __spin_unlock_irqrestore+0x40/0x59
[<c0143445>] task_blocks_on_rt_mutex+0x1c4/0x20a
[<c03140e7>] rt_spin_lock_slowlock+0xb9/0x18f
[<c03147e8>] rt_spin_lock+0xe/0x38
[<c011d48b>] complete+0x14/0x57
[<c011ed39>] migration_thread+0x1a4/0x1e5
[<c0134694>] kthread+0xb5/0xe1
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
}
... key at: [<c0832b48>] __key.11113+0x0/0x8
-> ((raw_spinlock_t *)(&p->pi_lock)){....} ops: 571 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c011c8d2>] sched_setscheduler+0x13f/0x22e
[<c0135330>] posix_cpu_thread_call+0x88/0xff
[<c0494d41>] posix_cpu_thread_init+0x1c/0x3c
[<c01003fa>] init+0x4d/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
}
... key at: [<c04cf06c>] __key.24601+0x0/0x8
-> (&rq->rq_lock_key){+...} ops: 34146 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c011bf95>] init_idle+0x5c/0x7a
[<c0493c0f>] sched_init+0x1a9/0x1b0
[<c0488516>] start_kernel+0x120/0x42f
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e13d>] __lock_acquire+0x3b3/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011b3c3>] task_running_tick+0x2a/0x23d
[<c011e9d5>] scheduler_tick+0x92/0xee
[<c012ba20>] update_process_times+0x3e/0x63
[<c013a83c>] tick_periodic+0x66/0x68
[<c013a856>] tick_handle_periodic+0x18/0x66
[<c010689b>] timer_interrupt+0x31/0x38
[<c0158112>] handle_IRQ_event+0x63/0x101
[<c0159a6b>] handle_level_irq+0xa7/0xf0
[<c0105e0e>] do_IRQ+0xc0/0xea
[<c0103ae6>] common_interrupt+0x2e/0x34
[<c024c681>] serial_in+0x69/0x6f
[<c024cadd>] serial8250_console_write+0xa6/0x11e
[<c012280a>] __call_console_drivers+0x66/0x79
[<c0122874>] _call_console_drivers+0x57/0x5b
[<c0122ac3>] release_console_sem+0x14d/0x1c5
[<c0123148>] vprintk+0x2cd/0x330
[<c01231c6>] printk+0x1b/0x1d
[<c048f074>] smp_prepare_cpus+0x46/0x5eb
[<c01003eb>] init+0x3e/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
}
... key at: [<c60686cc>] 0xc60686cc
-> (&rq->rq_lock_key#2){+...} ops: 33028 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c011bf95>] init_idle+0x5c/0x7a
[<c01220ac>] fork_idle+0x4f/0x58
[<c011202f>] do_boot_cpu+0x3c/0x547
[<c048f4a5>] smp_prepare_cpus+0x477/0x5eb
[<c01003eb>] init+0x3e/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e13d>] __lock_acquire+0x3b3/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011b88f>] task_rq_lock+0x36/0x5d
[<c011cb69>] try_to_wake_up+0x35/0x41a
[<c011cff1>] wake_up_process+0x19/0x1b
[<c0126d6b>] wakeup_softirqd+0x30/0x34
[<c012794e>] raise_softirq+0x33/0x51
[<c012b505>] run_local_timers+0xd/0x14
[<c012ba25>] update_process_times+0x43/0x63
[<c013a83c>] tick_periodic+0x66/0x68
[<c013a856>] tick_handle_periodic+0x18/0x66
[<c0113e4b>] smp_apic_timer_interrupt+0xb5/0xc7
[<c0103bc7>] apic_timer_interrupt+0x33/0x38
[<c0101b16>] default_idle+0x49/0x62
[<c01013ec>] cpu_idle+0xd4/0x11e
[<c0112d11>] start_secondary+0x35a/0x362
[<ffffffff>] 0xffffffff
}
... key at: [<c60e86cc>] 0xc60e86cc
... acquired at:
[<c013c2b3>] add_lock_to_list+0x65/0x89
[<c013e79c>] __lock_acquire+0xa12/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011af4c>] double_rq_lock+0x33/0x37
[<c011b9df>] __migrate_task+0x58/0x131
[<c011ed2b>] migration_thread+0x196/0x1e5
[<c0134694>] kthread+0xb5/0xe1
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
... acquired at:
[<c013c2b3>] add_lock_to_list+0x65/0x89
[<c013e79c>] __lock_acquire+0xa12/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011c8f0>] sched_setscheduler+0x15d/0x22e
[<c0135330>] posix_cpu_thread_call+0x88/0xff
[<c0494d41>] posix_cpu_thread_init+0x1c/0x3c
[<c01003fa>] init+0x4d/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
-> (&rq->rq_lock_key#2){+...} ops: 33028 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c011bf95>] init_idle+0x5c/0x7a
[<c01220ac>] fork_idle+0x4f/0x58
[<c011202f>] do_boot_cpu+0x3c/0x547
[<c048f4a5>] smp_prepare_cpus+0x477/0x5eb
[<c01003eb>] init+0x3e/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e13d>] __lock_acquire+0x3b3/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011b88f>] task_rq_lock+0x36/0x5d
[<c011cb69>] try_to_wake_up+0x35/0x41a
[<c011cff1>] wake_up_process+0x19/0x1b
[<c0126d6b>] wakeup_softirqd+0x30/0x34
[<c012794e>] raise_softirq+0x33/0x51
[<c012b505>] run_local_timers+0xd/0x14
[<c012ba25>] update_process_times+0x43/0x63
[<c013a83c>] tick_periodic+0x66/0x68
[<c013a856>] tick_handle_periodic+0x18/0x66
[<c0113e4b>] smp_apic_timer_interrupt+0xb5/0xc7
[<c0103bc7>] apic_timer_interrupt+0x33/0x38
[<c0101b16>] default_idle+0x49/0x62
[<c01013ec>] cpu_idle+0xd4/0x11e
[<c0112d11>] start_secondary+0x35a/0x362
[<ffffffff>] 0xffffffff
}
... key at: [<c60e86cc>] 0xc60e86cc
... acquired at:
[<c013c2b3>] add_lock_to_list+0x65/0x89
[<c013e79c>] __lock_acquire+0xa12/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011c8f0>] sched_setscheduler+0x15d/0x22e
[<c0135330>] posix_cpu_thread_call+0x88/0xff
[<c012edf7>] notifier_call_chain+0x20/0x31
[<c012ee24>] raw_notifier_call_chain+0x8/0xa
[<c01447d9>] _cpu_up+0x3d/0xbf
[<c0144881>] cpu_up+0x26/0x38
[<c010043e>] init+0x91/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
... acquired at:
[<c013c2b3>] add_lock_to_list+0x65/0x89
[<c013e79c>] __lock_acquire+0xa12/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c01432a6>] task_blocks_on_rt_mutex+0x25/0x20a
[<c03140e7>] rt_spin_lock_slowlock+0xb9/0x18f
[<c03147e8>] rt_spin_lock+0xe/0x38
[<c011d48b>] complete+0x14/0x57
[<c011ed39>] migration_thread+0x1a4/0x1e5
[<c0134694>] kthread+0xb5/0xe1
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
-> (&rq->rq_lock_key){+...} ops: 34146 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c011bf95>] init_idle+0x5c/0x7a
[<c0493c0f>] sched_init+0x1a9/0x1b0
[<c0488516>] start_kernel+0x120/0x42f
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e13d>] __lock_acquire+0x3b3/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011b3c3>] task_running_tick+0x2a/0x23d
[<c011e9d5>] scheduler_tick+0x92/0xee
[<c012ba20>] update_process_times+0x3e/0x63
[<c013a83c>] tick_periodic+0x66/0x68
[<c013a856>] tick_handle_periodic+0x18/0x66
[<c010689b>] timer_interrupt+0x31/0x38
[<c0158112>] handle_IRQ_event+0x63/0x101
[<c0159a6b>] handle_level_irq+0xa7/0xf0
[<c0105e0e>] do_IRQ+0xc0/0xea
[<c0103ae6>] common_interrupt+0x2e/0x34
[<c024c681>] serial_in+0x69/0x6f
[<c024cadd>] serial8250_console_write+0xa6/0x11e
[<c012280a>] __call_console_drivers+0x66/0x79
[<c0122874>] _call_console_drivers+0x57/0x5b
[<c0122ac3>] release_console_sem+0x14d/0x1c5
[<c0123148>] vprintk+0x2cd/0x330
[<c01231c6>] printk+0x1b/0x1d
[<c048f074>] smp_prepare_cpus+0x46/0x5eb
[<c01003eb>] init+0x3e/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
}
... key at: [<c60686cc>] 0xc60686cc
-> (&rq->rq_lock_key#2){+...} ops: 33028 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c011bf95>] init_idle+0x5c/0x7a
[<c01220ac>] fork_idle+0x4f/0x58
[<c011202f>] do_boot_cpu+0x3c/0x547
[<c048f4a5>] smp_prepare_cpus+0x477/0x5eb
[<c01003eb>] init+0x3e/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e13d>] __lock_acquire+0x3b3/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011b88f>] task_rq_lock+0x36/0x5d
[<c011cb69>] try_to_wake_up+0x35/0x41a
[<c011cff1>] wake_up_process+0x19/0x1b
[<c0126d6b>] wakeup_softirqd+0x30/0x34
[<c012794e>] raise_softirq+0x33/0x51
[<c012b505>] run_local_timers+0xd/0x14
[<c012ba25>] update_process_times+0x43/0x63
[<c013a83c>] tick_periodic+0x66/0x68
[<c013a856>] tick_handle_periodic+0x18/0x66
[<c0113e4b>] smp_apic_timer_interrupt+0xb5/0xc7
[<c0103bc7>] apic_timer_interrupt+0x33/0x38
[<c0101b16>] default_idle+0x49/0x62
[<c01013ec>] cpu_idle+0xd4/0x11e
[<c0112d11>] start_secondary+0x35a/0x362
[<ffffffff>] 0xffffffff
}
... key at: [<c60e86cc>] 0xc60e86cc
... acquired at:
[<c013c2b3>] add_lock_to_list+0x65/0x89
[<c013e79c>] __lock_acquire+0xa12/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011af4c>] double_rq_lock+0x33/0x37
[<c011b9df>] __migrate_task+0x58/0x131
[<c011ed2b>] migration_thread+0x196/0x1e5
[<c0134694>] kthread+0xb5/0xe1
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
... acquired at:
[<c013c2b3>] add_lock_to_list+0x65/0x89
[<c013e79c>] __lock_acquire+0xa12/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011b88f>] task_rq_lock+0x36/0x5d
[<c011cb69>] try_to_wake_up+0x35/0x41a
[<c011cfb8>] wake_up_process_mutex+0x19/0x1b
[<c0142a66>] wakeup_next_waiter+0x1d0/0x1e1
[<c0313f8a>] rt_spin_lock_slowunlock+0x46/0x5e
[<c031482f>] rt_spin_unlock+0x1d/0x20
[<c0313572>] wait_for_completion+0x69/0x93
[<c011d8d1>] set_cpus_allowed+0x82/0xa2
[<c011d989>] measure_one+0x98/0x163
[<c011df9a>] build_sched_domains+0x546/0xb5c
[<c011e5cb>] arch_init_sched_domains+0x1b/0x1d
[<c0493a21>] sched_init_smp+0x15/0x5a
[<c010047d>] init+0xd0/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
-> (&rq->rq_lock_key#2){+...} ops: 33028 {
initial-use at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e211>] __lock_acquire+0x487/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c011bf95>] init_idle+0x5c/0x7a
[<c01220ac>] fork_idle+0x4f/0x58
[<c011202f>] do_boot_cpu+0x3c/0x547
[<c048f4a5>] smp_prepare_cpus+0x477/0x5eb
[<c01003eb>] init+0x3e/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
in-hardirq-W at:
[<c013d37c>] mark_lock+0x6b/0x40b
[<c013e13d>] __lock_acquire+0x3b3/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011b88f>] task_rq_lock+0x36/0x5d
[<c011cb69>] try_to_wake_up+0x35/0x41a
[<c011cff1>] wake_up_process+0x19/0x1b
[<c0126d6b>] wakeup_softirqd+0x30/0x34
[<c012794e>] raise_softirq+0x33/0x51
[<c012b505>] run_local_timers+0xd/0x14
[<c012ba25>] update_process_times+0x43/0x63
[<c013a83c>] tick_periodic+0x66/0x68
[<c013a856>] tick_handle_periodic+0x18/0x66
[<c0113e4b>] smp_apic_timer_interrupt+0xb5/0xc7
[<c0103bc7>] apic_timer_interrupt+0x33/0x38
[<c0101b16>] default_idle+0x49/0x62
[<c01013ec>] cpu_idle+0xd4/0x11e
[<c0112d11>] start_secondary+0x35a/0x362
[<ffffffff>] 0xffffffff
}
... key at: [<c60e86cc>] 0xc60e86cc
... acquired at:
[<c013c2b3>] add_lock_to_list+0x65/0x89
[<c013e79c>] __lock_acquire+0xa12/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0314dfb>] __spin_lock+0x35/0x42
[<c011b88f>] task_rq_lock+0x36/0x5d
[<c011cb69>] try_to_wake_up+0x35/0x41a
[<c011cfb8>] wake_up_process_mutex+0x19/0x1b
[<c0142a66>] wakeup_next_waiter+0x1d0/0x1e1
[<c0313f8a>] rt_spin_lock_slowunlock+0x46/0x5e
[<c031482f>] rt_spin_unlock+0x1d/0x20
[<c0313572>] wait_for_completion+0x69/0x93
[<c011d8d1>] set_cpus_allowed+0x82/0xa2
[<c011d925>] measure_one+0x34/0x163
[<c011df9a>] build_sched_domains+0x546/0xb5c
[<c011e5cb>] arch_init_sched_domains+0x1b/0x1d
[<c0493a21>] sched_init_smp+0x15/0x5a
[<c010047d>] init+0xd0/0x3be
[<c0103dcb>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
stack backtrace:
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c013dce7>] check_usage+0x241/0x24b
[<c013e6a9>] __lock_acquire+0x91f/0xb94
[<c013e986>] lock_acquire+0x68/0x82
[<c0315068>] __spin_lock_irqsave+0x3e/0x4e
[<c031404f>] rt_spin_lock_slowlock+0x21/0x18f
[<c03147e8>] rt_spin_lock+0xe/0x38
[<c024ca81>] serial8250_console_write+0x4a/0x11e
[<c012280a>] __call_console_drivers+0x66/0x79
[<c0122874>] _call_console_drivers+0x57/0x5b
[<c0122a89>] release_console_sem+0x113/0x1c5
[<c0123148>] vprintk+0x2cd/0x330
[<c01231c6>] printk+0x1b/0x1d
[<c012b069>] run_timer_softirq+0x670/0x9ad
[<c0127837>] ksoftirqd+0x121/0x205
[<c0134694>] kthread+0xb5/0xe1
[<c0103dcb>] kernel_thread_helper+0x7/0x10
=======================
---------------------------
| preempt count: 00000002 ]
| 2-level deep critical section nesting:
----------------------------------------
.. [<c0314dd9>] .... __spin_lock+0x13/0x42
.....[<c012aa40>] .. ( <= run_timer_softirq+0x47/0x9ad)
.. [<c0315046>] .... __spin_lock_irqsave+0x1c/0x4e
.....[<c031404f>] .. ( <= rt_spin_lock_slowlock+0x21/0x18f)
0xc0314dd9 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);
0xc012aa40 is in run_timer_softirq (include/linux/seqlock.h:148).
143 }
144
145 static __always_inline void __write_seqlock_raw(raw_seqlock_t *sl)
146 {
147 spin_lock(&sl->lock);
148 ++sl->sequence;
149 smp_wmb();
150 }
151
152 static __always_inline void __write_sequnlock_raw(raw_seqlock_t *sl)
0xc0315046 is in __spin_lock_irqsave (kernel/spinlock.c:122).
117 {
118 unsigned long flags;
119
120 local_irq_save(flags);
121 preempt_disable();
122 spin_acquire(&lock->dep_map, 0, 0, _RET_IP_);
123 /*
124 * On lockdep we dont want the hand-coded irq-enable of
125 * _raw_spin_lock_flags() code, because lockdep assumes
126 * that interrupts are not re-enabled during lock-acquire:
0xc031404f is in rt_spin_lock_slowlock (kernel/rtmutex.c:640).
635 unsigned long saved_state, state, flags;
636
637 debug_rt_mutex_init_waiter(&waiter);
638 waiter.task = NULL;
639
640 spin_lock_irqsave(&lock->wait_lock, flags);
641 init_lists(lock);
642
643 /* Try to acquire the lock again: */
644 if (try_to_take_rt_mutex(lock)) {
========================================
echo shutdown > /sys/power/disk; echo disk > /sys/power/state
Disabling non-boot CPUs ...
CPU1 playing dead
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c01013a5>] cpu_idle+0x8d/0x11e
[<c0112d11>] start_secondary+0x35a/0x362
=======================
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c010142b>] .... cpu_idle+0x113/0x11e
.....[<c0112d11>] .. ( <= start_secondary+0x35a/0x362)
0xc010142b is in cpu_idle (arch/i386/kernel/process.c:204).
199 tick_nohz_restart_sched_tick();
200 local_irq_disable();
201 __preempt_enable_no_resched();
202 __schedule();
203 preempt_disable();
204 local_irq_enable();
205 }
206 }
207
208 void cpu_idle_wait(void)
0xc0112d11 is in start_secondary (arch/i386/kernel/smpboot.c:432).
427 /* We can take interrupts now: we're officially "up". */
428 local_irq_enable();
429
430 wmb();
431 cpu_idle();
432 }
433
434 /*
435 * Everything has been set up for the secondary
436 * CPUs - they just need to reload everything
CPU 1 is now offline
lockdep: not fixing up alternatives.
CPU1 is down
Stopping tasks ... done.
Shrinking memory... -\|done (13953 pages freed)
Freed 55812 kbytes in 0.42 seconds (132.88 MB/s)
Suspending console(s)
lapic suspend on CPU#0
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c0113ad4>] lapic_suspend+0xd8/0x101
[<c025683c>] sysdev_suspend+0x8d/0x1ee
[<c025a593>] device_power_down+0x119/0x152
[<c014adb2>] swsusp_suspend+0x17/0x67
[<c014b511>] pm_suspend_disk+0x9a/0x161
[<c014a3d9>] enter_state+0x52/0x1bb
[<c014a5c8>] state_store+0x86/0x9c
[<c01ae314>] subsys_attr_store+0x20/0x25
[<c01ae5b6>] sysfs_write_file+0xa1/0xc2
[<c0179d9a>] vfs_write+0xaf/0x163
[<c017a412>] sys_write+0x40/0x67
[<c0103101>] syscall_call+0x7/0xb
[<b7f73410>] 0xb7f73410
=======================
---------------------------
| preempt count: 00000000 ]
| 0-level deep critical section nesting:
----------------------------------------
swsusp: critical section:
swsusp: Need to copy 126290 pages
BUG: sleeping function called from invalid context swsusp_shutdown(3247) at arch/i386/mm/highmem.c:8
in_atomic():1 [00000001], irqs_disabled():1
no locks held by swsusp_shutdown/3247.
irq event stamp: 0
hardirqs last enabled at (0): [<00000000>] 0x0
hardirqs last disabled at (0): [<c0120a00>] copy_process+0x526/0x1343
softirqs last enabled at (0): [<c0120a1e>] copy_process+0x544/0x1343
softirqs last disabled at (0): [<00000000>] 0x0
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c011b852>] __might_sleep+0x10d/0x114
[<c011a20d>] kmap+0x3b/0x46
[<c014c324>] swsusp_save+0x2a9/0x3a8
[<c02bfdfa>] swsusp_arch_suspend+0x2a/0x2c
DWARF2 unwinder stuck at swsusp_arch_suspend+0x2a/0x2c
Leftover inexact backtrace:
[<c014b511>] pm_suspend_disk+0x9a/0x161
[<c014a3d9>] enter_state+0x52/0x1bb
[<c014a5c8>] state_store+0x86/0x9c
[<c01ae314>] subsys_attr_store+0x20/0x25
[<c01ae5b6>] sysfs_write_file+0xa1/0xc2
[<c0179d9a>] vfs_write+0xaf/0x163
[<c017a412>] sys_write+0x40/0x67
[<c0103101>] syscall_call+0x7/0xb
=======================
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c0108538>] .... kernel_fpu_begin+0x16/0x49
.....[<c02bfd85>] .. ( <= __save_processor_state+0xb/0x3d)
0xc0120a00 is in copy_process (kernel/fork.c:1121).
1116 #else
1117 p->hardirqs_enabled = 0;
1118 #endif
1119 p->hardirq_enable_ip = 0;
1120 p->hardirq_enable_event = 0;
1121 p->hardirq_disable_ip = _THIS_IP_;
1122 p->hardirq_disable_event = 0;
1123 p->softirqs_enabled = 1;
1124 p->softirq_enable_ip = _THIS_IP_;
1125 p->softirq_enable_event = 0;
0xc0120a1e is in copy_process (kernel/fork.c:1124).
1119 p->hardirq_enable_ip = 0;
1120 p->hardirq_enable_event = 0;
1121 p->hardirq_disable_ip = _THIS_IP_;
1122 p->hardirq_disable_event = 0;
1123 p->softirqs_enabled = 1;
1124 p->softirq_enable_ip = _THIS_IP_;
1125 p->softirq_enable_event = 0;
1126 p->softirq_disable_ip = 0;
1127 p->softirq_disable_event = 0;
1128 p->hardirq_context = 0;
0xc0108538 is in kernel_fpu_begin (arch/i386/kernel/i387.c:76).
71 void kernel_fpu_begin(void)
72 {
73 struct thread_info *thread = current_thread_info();
74
75 preempt_disable();
76 if (thread->status & TS_USEDFPU) {
77 __save_init_fpu(thread->task);
78 return;
79 }
80 clts();
0xc02bfd85 is in __save_processor_state (arch/i386/power/cpu.c:29).
24 kernel_fpu_begin();
25
26 /*
27 * descriptor tables
28 */
29 store_gdt(&ctxt->gdt);
30 store_idt(&ctxt->idt);
31 store_tr(ctxt->tr);
32
33 /*
swsusp: critical section/: done (126290 pages copied)
BUG: using smp_processor_id() in preemptible [00000000] code: swsusp_shutdown/3247
caller is intel_p4_mcheck_init+0x7b/0x18e
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c01f837b>] debug_smp_processor_id+0x9f/0xac
[<c010c4bb>] intel_p4_mcheck_init+0x7b/0x18e
[<c010c238>] mcheck_init+0x57/0x6b
[<c02bfd65>] __restore_processor_state+0x1b5/0x1bb
[<c02bfd78>] restore_processor_state+0xd/0xf
[<c014adeb>] swsusp_suspend+0x50/0x67
[<c014b511>] pm_suspend_disk+0x9a/0x161
[<c014a3d9>] enter_state+0x52/0x1bb
[<c014a5c8>] state_store+0x86/0x9c
[<c01ae314>] subsys_attr_store+0x20/0x25
[<c01ae5b6>] sysfs_write_file+0xa1/0xc2
[<c0179d9a>] vfs_write+0xaf/0x163
[<c017a412>] sys_write+0x40/0x67
[<c0103101>] syscall_call+0x7/0xb
[<b7f73410>] 0xb7f73410
=======================
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c01f832c>] .... debug_smp_processor_id+0x50/0xac
.....[<c010c4bb>] .. ( <= intel_p4_mcheck_init+0x7b/0x18e)
0xc010c440 is in intel_p4_mcheck_init (arch/i386/kernel/cpu/mcheck/p4.c:226).
221 wrmsr (MSR_IA32_MCG_STATUS,mcgstl, mcgsth);
222 }
223
224
225 void intel_p4_mcheck_init(struct cpuinfo_x86 *c)
226 {
227 u32 l, h;
228 int i;
229
230 machine_check_vector = intel_machine_check;
0xc01f832c 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));
0xc010c4bb is in intel_p4_mcheck_init (arch/i386/kernel/cpu/mcheck/p4.c:245).
240 wrmsr (MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff);
241 wrmsr (MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0);
242 }
243
244 set_in_cr4 (X86_CR4_MCE);
245 printk (KERN_INFO "Intel machine check reporting enabled on CPU#%d.\n",
246 smp_processor_id());
247
248 /* Check for P4/Xeon extended MCE MSRs */
249 rdmsr (MSR_IA32_MCG_CAP, l, h);
BUG: swsusp_shutdown:3247 task might have lost a preemption check!
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c011eeea>] preempt_enable_no_resched+0x5a/0x5c
[<c01f8380>] debug_smp_processor_id+0xa4/0xac
[<c010c4bb>] intel_p4_mcheck_init+0x7b/0x18e
[<c010c238>] mcheck_init+0x57/0x6b
[<c02bfd65>] __restore_processor_state+0x1b5/0x1bb
[<c02bfd78>] restore_processor_state+0xd/0xf
[<c014adeb>] swsusp_suspend+0x50/0x67
[<c014b511>] pm_suspend_disk+0x9a/0x161
[<c014a3d9>] enter_state+0x52/0x1bb
[<c014a5c8>] state_store+0x86/0x9c
[<c01ae314>] subsys_attr_store+0x20/0x25
[<c01ae5b6>] sysfs_write_file+0xa1/0xc2
[<c0179d9a>] vfs_write+0xaf/0x163
[<c017a412>] sys_write+0x40/0x67
[<c0103101>] syscall_call+0x7/0xb
[<b7f73410>] 0xb7f73410
=======================
---------------------------
| preempt count: 00000000 ]
| 0-level deep critical section nesting:
----------------------------------------
BUG: using smp_processor_id() in preemptible [00000000] code: swsusp_shutdown/3247
caller is intel_p4_mcheck_init+0xac/0x18e
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c01f837b>] debug_smp_processor_id+0x9f/0xac
[<c010c4ec>] intel_p4_mcheck_init+0xac/0x18e
[<c010c238>] mcheck_init+0x57/0x6b
[<c02bfd65>] __restore_processor_state+0x1b5/0x1bb
[<c02bfd78>] restore_processor_state+0xd/0xf
[<c014adeb>] swsusp_suspend+0x50/0x67
[<c014b511>] pm_suspend_disk+0x9a/0x161
[<c014a3d9>] enter_state+0x52/0x1bb
[<c014a5c8>] state_store+0x86/0x9c
[<c01ae314>] subsys_attr_store+0x20/0x25
[<c01ae5b6>] sysfs_write_file+0xa1/0xc2
[<c0179d9a>] vfs_write+0xaf/0x163
[<c017a412>] sys_write+0x40/0x67
[<c0103101>] syscall_call+0x7/0xb
[<b7f73410>] 0xb7f73410
=======================
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c01f832c>] .... debug_smp_processor_id+0x50/0xac
.....[<c010c4ec>] .. ( <= intel_p4_mcheck_init+0xac/0x18e)
BUG: using smp_processor_id() in preemptible [00000000] code: swsusp_shutdown/3247
caller is intel_p4_mcheck_init+0xc5/0x18e
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c01f837b>] debug_smp_processor_id+0x9f/0xac
[<c010c505>] intel_p4_mcheck_init+0xc5/0x18e
[<c010c238>] mcheck_init+0x57/0x6b
[<c02bfd65>] __restore_processor_state+0x1b5/0x1bb
[<c02bfd78>] restore_processor_state+0xd/0xf
[<c014adeb>] swsusp_suspend+0x50/0x67
[<c014b511>] pm_suspend_disk+0x9a/0x161
[<c014a3d9>] enter_state+0x52/0x1bb
[<c014a5c8>] state_store+0x86/0x9c
[<c01ae314>] subsys_attr_store+0x20/0x25
[<c01ae5b6>] sysfs_write_file+0xa1/0xc2
[<c0179d9a>] vfs_write+0xaf/0x163
[<c017a412>] sys_write+0x40/0x67
[<c0103101>] syscall_call+0x7/0xb
[<b7f73410>] 0xb7f73410
=======================
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c01f832c>] .... debug_smp_processor_id+0x50/0xac
.....[<c010c505>] .. ( <= intel_p4_mcheck_init+0xc5/0x18e)
lapic resume on CPU#0
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c0113b2e>] lapic_resume+0x31/0x1c3
[<c02564ca>] __sysdev_resume+0x14/0x57
[<c02569b6>] sysdev_resume+0x19/0x54
[<c025aa23>] device_power_up+0x8/0xf
[<c014adf5>] swsusp_suspend+0x5a/0x67
[<c014b511>] pm_suspend_disk+0x9a/0x161
[<c014a3d9>] enter_state+0x52/0x1bb
[<c014a5c8>] state_store+0x86/0x9c
[<c01ae314>] subsys_attr_store+0x20/0x25
[<c01ae5b6>] sysfs_write_file+0xa1/0xc2
[<c0179d9a>] vfs_write+0xaf/0x163
[<c017a412>] sys_write+0x40/0x67
[<c0103101>] syscall_call+0x7/0xb
[<b7f73410>] 0xb7f73410
=======================
---------------------------
| preempt count: 00000000 ]
| 0-level deep critical section nesting:
----------------------------------------
============================================
Resume
swsusp: Resume From Partition /dev/sda2
PM: Checking swsusp image.
swsusp: Signature found, resuming
PM: Preparing processes for restore.
Disabling non-boot CPUs ...
CPU1 playing dead
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c01013a5>] cpu_idle+0x8d/0x11e
[<c0112d11>] start_secondary+0x35a/0x362
=======================
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c010142b>] .... cpu_idle+0x113/0x11e
.....[<c0112d11>] .. ( <= start_secondary+0x35a/0x362)
etc...
===================================
echo platform > /sys/power/disk; echo disk > /sys/power/state
CPU1 playing dead
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c01013a5>] cpu_idle+0x8d/0x11e
[<c0112d11>] start_secondary+0x35a/0x362
=======================
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c010142b>] .... cpu_idle+0x113/0x11e
.....[<c0112d11>] .. ( <= start_secondary+0x35a/0x362)
etc.../
=======================================
Resume
CPU1 playing dead
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c01013a5>] cpu_idle+0x8d/0x11e
[<c0112d11>] start_secondary+0x35a/0x362
=======================
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c010142b>] .... cpu_idle+0x113/0x11e
.....[<c0112d11>] .. ( <= start_secondary+0x35a/0x362)
fb0: PM: suspend 0->1, parent 0000:01:00.0 already 1
i2c_adapter i2c-2: PM: suspend 0->1, parent 0000:01:00.0 already 1
i2c_adapter i2c-1: PM: suspend 0->1, parent 0000:01:00.0 already 1
i2c_adapter i2c-0: PM: suspend 0->1, parent 0000:01:00.0 already 1
lapic suspend on CPU#0
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c0113ad4>] lapic_suspend+0xd8/0x101
[<c025683c>] sysdev_suspend+0x8d/0x1ee
[<c025a593>] device_power_down+0x119/0x152
[<c014adb2>] swsusp_suspend+0x17/0x67
[<c014b511>] pm_suspend_disk+0x9a/0x161
[<c014a3d9>] enter_state+0x52/0x1bb
[<c014a5c8>] state_store+0x86/0x9c
[<c01ae314>] subsys_attr_store+0x20/0x25
[<c01ae5b6>] sysfs_write_file+0xa1/0xc2
[<c0179d9a>] vfs_write+0xaf/0x163
[<c017a412>] sys_write+0x40/0x67
[<c0103101>] syscall_call+0x7/0xb
[<b7f8c410>] 0xb7f8c410
=======================
---------------------------
| preempt count: 00000000 ]
| 0-level deep critical section nesting:
----------------------------------------
swsusp: critical section:
swsusp: Need to copy 126417 pages
lapic resume on CPU#0
[<c01041c3>] dump_trace+0x63/0x1eb
[<c0104368>] show_trace_log_lvl+0x1d/0x3a
[<c0104a43>] show_trace+0x12/0x14
[<c0104ad6>] dump_stack+0x16/0x18
[<c0113b2e>] lapic_resume+0x31/0x1c3
[<c02564ca>] __sysdev_resume+0x14/0x57
[<c02569b6>] sysdev_resume+0x19/0x54
[<c025aa23>] device_power_up+0x8/0xf
[<c014adf5>] swsusp_suspend+0x5a/0x67
[<c014b511>] pm_suspend_disk+0x9a/0x161
[<c014a3d9>] enter_state+0x52/0x1bb
[<c014a5c8>] state_store+0x86/0x9c
[<c01ae314>] subsys_attr_store+0x20/0x25
My system hangs here.
http://www.stardust.webpages.pl/files/tbf/euridica/2.6.20-rt8/boot2.log
http://www.stardust.webpages.pl/files/tbf/euridica/2.6.20-rt8/rt-config
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/)
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