* kernel softlocks
@ 2009-05-15 12:15 Michael Di Domenico
2009-05-15 12:44 ` Frederik Deweerdt
0 siblings, 1 reply; 3+ messages in thread
From: Michael Di Domenico @ 2009-05-15 12:15 UTC (permalink / raw)
To: linux-kernel
I have a user application that seems to be soft locking the linux
kernel, in this case 2.6.18
Can anyone narrow down whether this is a bug in the linux kernel (and
perhaps if so, whether is was fixed in a later version) or not?
Or what this user application might have done to create this issue if
its not a bug?
thanks
- Michael
BUG: soft lockup detected on CPU#33!
Call Trace:
[<a000000100013b20>] show_stack+0x40/0xa0
sp=e00000ff000b73d0 bsp=e00000ff000b1818
[<a000000100013bb0>] dump_stack+0x30/0x60
sp=e00000ff000b75a0 bsp=e00000ff000b1800
[<a0000001000e5fe0>] softlockup_tick+0x240/0x280
sp=e00000ff000b75a0 bsp=e00000ff000b17b8
[<a000000100092df0>] run_local_timers+0x30/0x60
sp=e00000ff000b75b0 bsp=e00000ff000b17a0
[<a000000100092ea0>] update_process_times+0x80/0x100
sp=e00000ff000b75b0 bsp=e00000ff000b1770
[<a000000100037220>] timer_interrupt+0x180/0x360
sp=e00000ff000b75b0 bsp=e00000ff000b1730
[<a0000001000e6650>] handle_IRQ_event+0x90/0x120
sp=e00000ff000b75b0 bsp=e00000ff000b16f0
[<a0000001000e6810>] __do_IRQ+0x130/0x420
sp=e00000ff000b75b0 bsp=e00000ff000b16a8
[<a000000100011630>] ia64_handle_irq+0xf0/0x1a0
sp=e00000ff000b75b0 bsp=e00000ff000b1678
[<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
sp=e00000ff000b75b0 bsp=e00000ff000b1678
[<a000000100626b90>] _spin_unlock_irqrestore+0x30/0x60
sp=e00000ff000b7780 bsp=e00000ff000b1660
[<a0000001000989d0>] force_sig_info+0x130/0x160
sp=e00000ff000b7780 bsp=e00000ff000b1620
[<a00000010003c620>] ia64_handle_unaligned+0x2d00/0x2d20
sp=e00000ff000b7780 bsp=e00000ff000b1580
[<a00000010000c630>] ia64_prepare_handle_unaligned+0x30/0x60
sp=e00000ff000b7970 bsp=e00000ff000b1580
[<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
sp=e00000ff000b7b80 bsp=e00000ff000b1580
[<a0000001000b9150>] exit_robust_list+0x250/0x2e0
sp=e00000ff000b7d50 bsp=e00000ff000b1518
[<a000000100081690>] do_exit+0x510/0x14a0
sp=e00000ff000b7d60 bsp=e00000ff000b14c0
[<a000000100082770>] do_group_exit+0x150/0x160
sp=e00000ff000b7d80 bsp=e00000ff000b1488
[<a000000100099a00>] get_signal_to_deliver+0x740/0x7c0
sp=e00000ff000b7d80 bsp=e00000ff000b1438
[<a0000001000341d0>] ia64_do_signal+0x90/0xde0
sp=e00000ff000b7d80 bsp=e00000ff000b1350
[<a0000001000139a0>] do_notify_resume_user+0x100/0x160
sp=e00000ff000b7e20 bsp=e00000ff000b1320
[<a00000010000c500>] notify_resume_user+0x40/0x60
sp=e00000ff000b7e20 bsp=e00000ff000b12d0
[<a00000010000c430>] skip_rbs_switch+0xe0/0x110
sp=e00000ff000b7e30 bsp=e00000ff000b12d0
BUG: soft lockup detected on CPU#72!
Call Trace:
[<a000000100013b20>] show_stack+0x40/0xa0
sp=e00000fbe5e3f3d0 bsp=e00000fbe5e39830
[<a000000100013bb0>] dump_stack+0x30/0x60
sp=e00000fbe5e3f5a0 bsp=e00000fbe5e39818
[<a0000001000e5fe0>] softlockup_tick+0x240/0x280
sp=e00000fbe5e3f5a0 bsp=e00000fbe5e397d0
[<a000000100092df0>] run_local_timers+0x30/0x60
sp=e00000fbe5e3f5b0 bsp=e00000fbe5e397b8
[<a000000100092ea0>] update_process_times+0x80/0x100
sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39788
[<a000000100037220>] timer_interrupt+0x180/0x360
sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39748
[<a0000001000e6650>] handle_IRQ_event+0x90/0x120
sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39708
[<a0000001000e6810>] __do_IRQ+0x130/0x420
sp=e00000fbe5e3f5b0 bsp=e00000fbe5e396c0
[<a000000100011630>] ia64_handle_irq+0xf0/0x1a0
sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39690
[<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39690
[<a000000100009100>] ia64_spinlock_contention+0x20/0x60
sp=e00000fbe5e3f780 bsp=e00000fbe5e39690
[<a000000100626a20>] _spin_lock_irqsave+0x60/0x80
sp=e00000fbe5e3f780 bsp=e00000fbe5e39688
[<a0000001000988d0>] force_sig_info+0x30/0x160
sp=e00000fbe5e3f780 bsp=e00000fbe5e39648
[<a00000010003c620>] ia64_handle_unaligned+0x2d00/0x2d20
sp=e00000fbe5e3f780 bsp=e00000fbe5e395a8
[<a00000010000c630>] ia64_prepare_handle_unaligned+0x30/0x60
sp=e00000fbe5e3f970 bsp=e00000fbe5e395a8
[<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
sp=e00000fbe5e3fb80 bsp=e00000fbe5e395a8
[<a0000001000b4ff0>] handle_futex_death+0x90/0x1a0
sp=e00000fbe5e3fd50 bsp=e00000fbe5e39568
[<a0000001000b90f0>] exit_robust_list+0x1f0/0x2e0
sp=e00000fbe5e3fd50 bsp=e00000fbe5e39518
[<a000000100081690>] do_exit+0x510/0x14a0
sp=e00000fbe5e3fd60 bsp=e00000fbe5e394c0
[<a000000100082770>] do_group_exit+0x150/0x160
sp=e00000fbe5e3fd80 bsp=e00000fbe5e39488
[<a000000100099a00>] get_signal_to_deliver+0x740/0x7c0
sp=e00000fbe5e3fd80 bsp=e00000fbe5e39438
[<a0000001000341d0>] ia64_do_signal+0x90/0xde0
sp=e00000fbe5e3fd80 bsp=e00000fbe5e39350
[<a0000001000139a0>] do_notify_resume_user+0x100/0x160
sp=e00000fbe5e3fe20 bsp=e00000fbe5e39320
[<a00000010000c500>] notify_resume_user+0x40/0x60
sp=e00000fbe5e3fe20 bsp=e00000fbe5e392d0
[<a00000010000c430>] skip_rbs_switch+0xe0/0x110
sp=e00000fbe5e3fe30 bsp=e00000fbe5e392d0
BUG: soft lockup detected on CPU#104!
Call Trace:
[<a000000100013b20>] show_stack+0x40/0xa0
sp=e00000fc4b03f7d0 bsp=e00000fc4b039730
[<a000000100013bb0>] dump_stack+0x30/0x60
sp=e00000fc4b03f9a0 bsp=e00000fc4b039718
[<a0000001000e5fe0>] softlockup_tick+0x240/0x280
sp=e00000fc4b03f9a0 bsp=e00000fc4b0396d8
[<a000000100092df0>] run_local_timers+0x30/0x60
sp=e00000fc4b03f9b0 bsp=e00000fc4b0396c0
[<a000000100092ea0>] update_process_times+0x80/0x100
sp=e00000fc4b03f9b0 bsp=e00000fc4b039690
[<a000000100037220>] timer_interrupt+0x180/0x360
sp=e00000fc4b03f9b0 bsp=e00000fc4b039650
[<a0000001000e6650>] handle_IRQ_event+0x90/0x120
sp=e00000fc4b03f9b0 bsp=e00000fc4b039610
[<a0000001000e6810>] __do_IRQ+0x130/0x420
sp=e00000fc4b03f9b0 bsp=e00000fc4b0395c0
[<a000000100011630>] ia64_handle_irq+0xf0/0x1a0
sp=e00000fc4b03f9b0 bsp=e00000fc4b039590
[<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
sp=e00000fc4b03f9b0 bsp=e00000fc4b039590
[<a000000100004ac0>] dispatch_unaligned_handler+0x2a0/0x400
sp=e00000fc4b03fb80 bsp=e00000fc4b039580
[<a0000001000b90f0>] exit_robust_list+0x1f0/0x2e0
sp=e00000fc4b03fb80 bsp=e00000fc4b039530
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: kernel softlocks
2009-05-15 12:15 kernel softlocks Michael Di Domenico
@ 2009-05-15 12:44 ` Frederik Deweerdt
2009-05-15 12:53 ` Michael Di Domenico
0 siblings, 1 reply; 3+ messages in thread
From: Frederik Deweerdt @ 2009-05-15 12:44 UTC (permalink / raw)
To: Michael Di Domenico; +Cc: linux-kernel
Hi Michael,
The behaviour of the soft lockup has been modified since 2.6.18 to match
the increasing RAM found on systems (flushing large amounts of RAM to
disk tend to keep the CPUs busy).
On recent kernels, the soft lockup threshold is set to 60s whereas 2.6.18
used a 10s threshold, IIRC.
So if you do have large amounts of RAM, you can safely ignore this
warning if you don't observe any other weird behaviour.
Regards,
Frederik
On Fri, May 15, 2009 at 08:15:13AM -0400, Michael Di Domenico wrote:
> I have a user application that seems to be soft locking the linux
> kernel, in this case 2.6.18
>
> Can anyone narrow down whether this is a bug in the linux kernel (and
> perhaps if so, whether is was fixed in a later version) or not?
>
> Or what this user application might have done to create this issue if
> its not a bug?
>
> thanks
> - Michael
>
>
>
>
> BUG: soft lockup detected on CPU#33!
>
> Call Trace:
> [<a000000100013b20>] show_stack+0x40/0xa0
> sp=e00000ff000b73d0 bsp=e00000ff000b1818
> [<a000000100013bb0>] dump_stack+0x30/0x60
> sp=e00000ff000b75a0 bsp=e00000ff000b1800
> [<a0000001000e5fe0>] softlockup_tick+0x240/0x280
> sp=e00000ff000b75a0 bsp=e00000ff000b17b8
> [<a000000100092df0>] run_local_timers+0x30/0x60
> sp=e00000ff000b75b0 bsp=e00000ff000b17a0
> [<a000000100092ea0>] update_process_times+0x80/0x100
> sp=e00000ff000b75b0 bsp=e00000ff000b1770
> [<a000000100037220>] timer_interrupt+0x180/0x360
> sp=e00000ff000b75b0 bsp=e00000ff000b1730
> [<a0000001000e6650>] handle_IRQ_event+0x90/0x120
> sp=e00000ff000b75b0 bsp=e00000ff000b16f0
> [<a0000001000e6810>] __do_IRQ+0x130/0x420
> sp=e00000ff000b75b0 bsp=e00000ff000b16a8
> [<a000000100011630>] ia64_handle_irq+0xf0/0x1a0
> sp=e00000ff000b75b0 bsp=e00000ff000b1678
> [<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
> sp=e00000ff000b75b0 bsp=e00000ff000b1678
> [<a000000100626b90>] _spin_unlock_irqrestore+0x30/0x60
> sp=e00000ff000b7780 bsp=e00000ff000b1660
> [<a0000001000989d0>] force_sig_info+0x130/0x160
> sp=e00000ff000b7780 bsp=e00000ff000b1620
> [<a00000010003c620>] ia64_handle_unaligned+0x2d00/0x2d20
> sp=e00000ff000b7780 bsp=e00000ff000b1580
> [<a00000010000c630>] ia64_prepare_handle_unaligned+0x30/0x60
> sp=e00000ff000b7970 bsp=e00000ff000b1580
> [<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
> sp=e00000ff000b7b80 bsp=e00000ff000b1580
> [<a0000001000b9150>] exit_robust_list+0x250/0x2e0
> sp=e00000ff000b7d50 bsp=e00000ff000b1518
> [<a000000100081690>] do_exit+0x510/0x14a0
> sp=e00000ff000b7d60 bsp=e00000ff000b14c0
> [<a000000100082770>] do_group_exit+0x150/0x160
> sp=e00000ff000b7d80 bsp=e00000ff000b1488
> [<a000000100099a00>] get_signal_to_deliver+0x740/0x7c0
> sp=e00000ff000b7d80 bsp=e00000ff000b1438
> [<a0000001000341d0>] ia64_do_signal+0x90/0xde0
> sp=e00000ff000b7d80 bsp=e00000ff000b1350
> [<a0000001000139a0>] do_notify_resume_user+0x100/0x160
> sp=e00000ff000b7e20 bsp=e00000ff000b1320
> [<a00000010000c500>] notify_resume_user+0x40/0x60
> sp=e00000ff000b7e20 bsp=e00000ff000b12d0
> [<a00000010000c430>] skip_rbs_switch+0xe0/0x110
> sp=e00000ff000b7e30 bsp=e00000ff000b12d0
>
> BUG: soft lockup detected on CPU#72!
>
> Call Trace:
> [<a000000100013b20>] show_stack+0x40/0xa0
> sp=e00000fbe5e3f3d0 bsp=e00000fbe5e39830
> [<a000000100013bb0>] dump_stack+0x30/0x60
> sp=e00000fbe5e3f5a0 bsp=e00000fbe5e39818
> [<a0000001000e5fe0>] softlockup_tick+0x240/0x280
> sp=e00000fbe5e3f5a0 bsp=e00000fbe5e397d0
> [<a000000100092df0>] run_local_timers+0x30/0x60
> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e397b8
> [<a000000100092ea0>] update_process_times+0x80/0x100
> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39788
> [<a000000100037220>] timer_interrupt+0x180/0x360
> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39748
> [<a0000001000e6650>] handle_IRQ_event+0x90/0x120
> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39708
> [<a0000001000e6810>] __do_IRQ+0x130/0x420
> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e396c0
> [<a000000100011630>] ia64_handle_irq+0xf0/0x1a0
> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39690
> [<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39690
> [<a000000100009100>] ia64_spinlock_contention+0x20/0x60
> sp=e00000fbe5e3f780 bsp=e00000fbe5e39690
> [<a000000100626a20>] _spin_lock_irqsave+0x60/0x80
> sp=e00000fbe5e3f780 bsp=e00000fbe5e39688
> [<a0000001000988d0>] force_sig_info+0x30/0x160
> sp=e00000fbe5e3f780 bsp=e00000fbe5e39648
> [<a00000010003c620>] ia64_handle_unaligned+0x2d00/0x2d20
> sp=e00000fbe5e3f780 bsp=e00000fbe5e395a8
> [<a00000010000c630>] ia64_prepare_handle_unaligned+0x30/0x60
> sp=e00000fbe5e3f970 bsp=e00000fbe5e395a8
> [<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
> sp=e00000fbe5e3fb80 bsp=e00000fbe5e395a8
> [<a0000001000b4ff0>] handle_futex_death+0x90/0x1a0
> sp=e00000fbe5e3fd50 bsp=e00000fbe5e39568
> [<a0000001000b90f0>] exit_robust_list+0x1f0/0x2e0
> sp=e00000fbe5e3fd50 bsp=e00000fbe5e39518
> [<a000000100081690>] do_exit+0x510/0x14a0
> sp=e00000fbe5e3fd60 bsp=e00000fbe5e394c0
> [<a000000100082770>] do_group_exit+0x150/0x160
> sp=e00000fbe5e3fd80 bsp=e00000fbe5e39488
> [<a000000100099a00>] get_signal_to_deliver+0x740/0x7c0
> sp=e00000fbe5e3fd80 bsp=e00000fbe5e39438
> [<a0000001000341d0>] ia64_do_signal+0x90/0xde0
> sp=e00000fbe5e3fd80 bsp=e00000fbe5e39350
> [<a0000001000139a0>] do_notify_resume_user+0x100/0x160
> sp=e00000fbe5e3fe20 bsp=e00000fbe5e39320
> [<a00000010000c500>] notify_resume_user+0x40/0x60
> sp=e00000fbe5e3fe20 bsp=e00000fbe5e392d0
> [<a00000010000c430>] skip_rbs_switch+0xe0/0x110
> sp=e00000fbe5e3fe30 bsp=e00000fbe5e392d0
>
> BUG: soft lockup detected on CPU#104!
>
> Call Trace:
> [<a000000100013b20>] show_stack+0x40/0xa0
> sp=e00000fc4b03f7d0 bsp=e00000fc4b039730
> [<a000000100013bb0>] dump_stack+0x30/0x60
> sp=e00000fc4b03f9a0 bsp=e00000fc4b039718
> [<a0000001000e5fe0>] softlockup_tick+0x240/0x280
> sp=e00000fc4b03f9a0 bsp=e00000fc4b0396d8
> [<a000000100092df0>] run_local_timers+0x30/0x60
> sp=e00000fc4b03f9b0 bsp=e00000fc4b0396c0
> [<a000000100092ea0>] update_process_times+0x80/0x100
> sp=e00000fc4b03f9b0 bsp=e00000fc4b039690
> [<a000000100037220>] timer_interrupt+0x180/0x360
> sp=e00000fc4b03f9b0 bsp=e00000fc4b039650
> [<a0000001000e6650>] handle_IRQ_event+0x90/0x120
> sp=e00000fc4b03f9b0 bsp=e00000fc4b039610
> [<a0000001000e6810>] __do_IRQ+0x130/0x420
> sp=e00000fc4b03f9b0 bsp=e00000fc4b0395c0
> [<a000000100011630>] ia64_handle_irq+0xf0/0x1a0
> sp=e00000fc4b03f9b0 bsp=e00000fc4b039590
> [<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
> sp=e00000fc4b03f9b0 bsp=e00000fc4b039590
> [<a000000100004ac0>] dispatch_unaligned_handler+0x2a0/0x400
> sp=e00000fc4b03fb80 bsp=e00000fc4b039580
> [<a0000001000b90f0>] exit_robust_list+0x1f0/0x2e0
> sp=e00000fc4b03fb80 bsp=e00000fc4b039530
> --
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: kernel softlocks
2009-05-15 12:44 ` Frederik Deweerdt
@ 2009-05-15 12:53 ` Michael Di Domenico
0 siblings, 0 replies; 3+ messages in thread
From: Michael Di Domenico @ 2009-05-15 12:53 UTC (permalink / raw)
To: Frederik Deweerdt; +Cc: linux-kernel
Frederik,
Thanks. The user process also seems to lock during this run and turns
the job unkillable. Though it's hard to say whether that behavior is
the result of this softlock or the threading in the application.
The system does have a large amount of ram, its an hp superdome.
On Fri, May 15, 2009 at 8:44 AM, Frederik Deweerdt
<frederik.deweerdt@xprog.eu> wrote:
> Hi Michael,
>
> The behaviour of the soft lockup has been modified since 2.6.18 to match
> the increasing RAM found on systems (flushing large amounts of RAM to
> disk tend to keep the CPUs busy).
>
> On recent kernels, the soft lockup threshold is set to 60s whereas 2.6.18
> used a 10s threshold, IIRC.
>
> So if you do have large amounts of RAM, you can safely ignore this
> warning if you don't observe any other weird behaviour.
>
> Regards,
> Frederik
>
> On Fri, May 15, 2009 at 08:15:13AM -0400, Michael Di Domenico wrote:
>> I have a user application that seems to be soft locking the linux
>> kernel, in this case 2.6.18
>>
>> Can anyone narrow down whether this is a bug in the linux kernel (and
>> perhaps if so, whether is was fixed in a later version) or not?
>>
>> Or what this user application might have done to create this issue if
>> its not a bug?
>>
>> thanks
>> - Michael
>>
>>
>>
>>
>> BUG: soft lockup detected on CPU#33!
>>
>> Call Trace:
>> [<a000000100013b20>] show_stack+0x40/0xa0
>> sp=e00000ff000b73d0 bsp=e00000ff000b1818
>> [<a000000100013bb0>] dump_stack+0x30/0x60
>> sp=e00000ff000b75a0 bsp=e00000ff000b1800
>> [<a0000001000e5fe0>] softlockup_tick+0x240/0x280
>> sp=e00000ff000b75a0 bsp=e00000ff000b17b8
>> [<a000000100092df0>] run_local_timers+0x30/0x60
>> sp=e00000ff000b75b0 bsp=e00000ff000b17a0
>> [<a000000100092ea0>] update_process_times+0x80/0x100
>> sp=e00000ff000b75b0 bsp=e00000ff000b1770
>> [<a000000100037220>] timer_interrupt+0x180/0x360
>> sp=e00000ff000b75b0 bsp=e00000ff000b1730
>> [<a0000001000e6650>] handle_IRQ_event+0x90/0x120
>> sp=e00000ff000b75b0 bsp=e00000ff000b16f0
>> [<a0000001000e6810>] __do_IRQ+0x130/0x420
>> sp=e00000ff000b75b0 bsp=e00000ff000b16a8
>> [<a000000100011630>] ia64_handle_irq+0xf0/0x1a0
>> sp=e00000ff000b75b0 bsp=e00000ff000b1678
>> [<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
>> sp=e00000ff000b75b0 bsp=e00000ff000b1678
>> [<a000000100626b90>] _spin_unlock_irqrestore+0x30/0x60
>> sp=e00000ff000b7780 bsp=e00000ff000b1660
>> [<a0000001000989d0>] force_sig_info+0x130/0x160
>> sp=e00000ff000b7780 bsp=e00000ff000b1620
>> [<a00000010003c620>] ia64_handle_unaligned+0x2d00/0x2d20
>> sp=e00000ff000b7780 bsp=e00000ff000b1580
>> [<a00000010000c630>] ia64_prepare_handle_unaligned+0x30/0x60
>> sp=e00000ff000b7970 bsp=e00000ff000b1580
>> [<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
>> sp=e00000ff000b7b80 bsp=e00000ff000b1580
>> [<a0000001000b9150>] exit_robust_list+0x250/0x2e0
>> sp=e00000ff000b7d50 bsp=e00000ff000b1518
>> [<a000000100081690>] do_exit+0x510/0x14a0
>> sp=e00000ff000b7d60 bsp=e00000ff000b14c0
>> [<a000000100082770>] do_group_exit+0x150/0x160
>> sp=e00000ff000b7d80 bsp=e00000ff000b1488
>> [<a000000100099a00>] get_signal_to_deliver+0x740/0x7c0
>> sp=e00000ff000b7d80 bsp=e00000ff000b1438
>> [<a0000001000341d0>] ia64_do_signal+0x90/0xde0
>> sp=e00000ff000b7d80 bsp=e00000ff000b1350
>> [<a0000001000139a0>] do_notify_resume_user+0x100/0x160
>> sp=e00000ff000b7e20 bsp=e00000ff000b1320
>> [<a00000010000c500>] notify_resume_user+0x40/0x60
>> sp=e00000ff000b7e20 bsp=e00000ff000b12d0
>> [<a00000010000c430>] skip_rbs_switch+0xe0/0x110
>> sp=e00000ff000b7e30 bsp=e00000ff000b12d0
>>
>> BUG: soft lockup detected on CPU#72!
>>
>> Call Trace:
>> [<a000000100013b20>] show_stack+0x40/0xa0
>> sp=e00000fbe5e3f3d0 bsp=e00000fbe5e39830
>> [<a000000100013bb0>] dump_stack+0x30/0x60
>> sp=e00000fbe5e3f5a0 bsp=e00000fbe5e39818
>> [<a0000001000e5fe0>] softlockup_tick+0x240/0x280
>> sp=e00000fbe5e3f5a0 bsp=e00000fbe5e397d0
>> [<a000000100092df0>] run_local_timers+0x30/0x60
>> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e397b8
>> [<a000000100092ea0>] update_process_times+0x80/0x100
>> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39788
>> [<a000000100037220>] timer_interrupt+0x180/0x360
>> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39748
>> [<a0000001000e6650>] handle_IRQ_event+0x90/0x120
>> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39708
>> [<a0000001000e6810>] __do_IRQ+0x130/0x420
>> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e396c0
>> [<a000000100011630>] ia64_handle_irq+0xf0/0x1a0
>> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39690
>> [<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
>> sp=e00000fbe5e3f5b0 bsp=e00000fbe5e39690
>> [<a000000100009100>] ia64_spinlock_contention+0x20/0x60
>> sp=e00000fbe5e3f780 bsp=e00000fbe5e39690
>> [<a000000100626a20>] _spin_lock_irqsave+0x60/0x80
>> sp=e00000fbe5e3f780 bsp=e00000fbe5e39688
>> [<a0000001000988d0>] force_sig_info+0x30/0x160
>> sp=e00000fbe5e3f780 bsp=e00000fbe5e39648
>> [<a00000010003c620>] ia64_handle_unaligned+0x2d00/0x2d20
>> sp=e00000fbe5e3f780 bsp=e00000fbe5e395a8
>> [<a00000010000c630>] ia64_prepare_handle_unaligned+0x30/0x60
>> sp=e00000fbe5e3f970 bsp=e00000fbe5e395a8
>> [<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
>> sp=e00000fbe5e3fb80 bsp=e00000fbe5e395a8
>> [<a0000001000b4ff0>] handle_futex_death+0x90/0x1a0
>> sp=e00000fbe5e3fd50 bsp=e00000fbe5e39568
>> [<a0000001000b90f0>] exit_robust_list+0x1f0/0x2e0
>> sp=e00000fbe5e3fd50 bsp=e00000fbe5e39518
>> [<a000000100081690>] do_exit+0x510/0x14a0
>> sp=e00000fbe5e3fd60 bsp=e00000fbe5e394c0
>> [<a000000100082770>] do_group_exit+0x150/0x160
>> sp=e00000fbe5e3fd80 bsp=e00000fbe5e39488
>> [<a000000100099a00>] get_signal_to_deliver+0x740/0x7c0
>> sp=e00000fbe5e3fd80 bsp=e00000fbe5e39438
>> [<a0000001000341d0>] ia64_do_signal+0x90/0xde0
>> sp=e00000fbe5e3fd80 bsp=e00000fbe5e39350
>> [<a0000001000139a0>] do_notify_resume_user+0x100/0x160
>> sp=e00000fbe5e3fe20 bsp=e00000fbe5e39320
>> [<a00000010000c500>] notify_resume_user+0x40/0x60
>> sp=e00000fbe5e3fe20 bsp=e00000fbe5e392d0
>> [<a00000010000c430>] skip_rbs_switch+0xe0/0x110
>> sp=e00000fbe5e3fe30 bsp=e00000fbe5e392d0
>>
>> BUG: soft lockup detected on CPU#104!
>>
>> Call Trace:
>> [<a000000100013b20>] show_stack+0x40/0xa0
>> sp=e00000fc4b03f7d0 bsp=e00000fc4b039730
>> [<a000000100013bb0>] dump_stack+0x30/0x60
>> sp=e00000fc4b03f9a0 bsp=e00000fc4b039718
>> [<a0000001000e5fe0>] softlockup_tick+0x240/0x280
>> sp=e00000fc4b03f9a0 bsp=e00000fc4b0396d8
>> [<a000000100092df0>] run_local_timers+0x30/0x60
>> sp=e00000fc4b03f9b0 bsp=e00000fc4b0396c0
>> [<a000000100092ea0>] update_process_times+0x80/0x100
>> sp=e00000fc4b03f9b0 bsp=e00000fc4b039690
>> [<a000000100037220>] timer_interrupt+0x180/0x360
>> sp=e00000fc4b03f9b0 bsp=e00000fc4b039650
>> [<a0000001000e6650>] handle_IRQ_event+0x90/0x120
>> sp=e00000fc4b03f9b0 bsp=e00000fc4b039610
>> [<a0000001000e6810>] __do_IRQ+0x130/0x420
>> sp=e00000fc4b03f9b0 bsp=e00000fc4b0395c0
>> [<a000000100011630>] ia64_handle_irq+0xf0/0x1a0
>> sp=e00000fc4b03f9b0 bsp=e00000fc4b039590
>> [<a00000010000c020>] __ia64_leave_kernel+0x0/0x280
>> sp=e00000fc4b03f9b0 bsp=e00000fc4b039590
>> [<a000000100004ac0>] dispatch_unaligned_handler+0x2a0/0x400
>> sp=e00000fc4b03fb80 bsp=e00000fc4b039580
>> [<a0000001000b90f0>] exit_robust_list+0x1f0/0x2e0
>> sp=e00000fc4b03fb80 bsp=e00000fc4b039530
>> --
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>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2009-05-15 12:54 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-05-15 12:15 kernel softlocks Michael Di Domenico
2009-05-15 12:44 ` Frederik Deweerdt
2009-05-15 12:53 ` Michael Di Domenico
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