xeno_dmesg_dump8

003]  0000000000000000 ffff880115c5fcb0
[   34.766418]  ffffffff810059ec ffff880115c5fd20 ffffffff8110442d ffffffff819c2e58 [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.766242]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766762]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.766360]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.766703]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.766003]  0000000000000007 ffff88011ac16740
[   34.766003]  ffff8801163a3ce0 ffffffff810203fd [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766120]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766120]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766003]  ffff8801163a3d00 [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.766477] 
[   34.766477]  0000000000000011 00000000ffffffff ffff880115cb3cb0
[   34.766823]  ffffffff810059ec ffff880115cb3d20 ffffffff8110442d ffffffff819c2e58
[   34.766823] Call Trace:
[   34.766762]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.766477]  ffffffff819c2d71 ffff880115c73cb0
[   34.766477]  ffffffff810059ec ffff880115c73d20 ffffffff8110442d ffffffff819c2e58
[   34.766301]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.766535]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.766703]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.766003]  ffffffff810cdc31
[   34.766003]  0000000000000001 ffffffff82c93100 [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.766242]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766477] Call Trace:
[   34.766477]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.766644]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766703]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766188]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766301]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.766535]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766003]  ffff8801163a3d10 [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766703]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766644]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766120]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766003]  ffffffff81112ef0 [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.766003] 
[   34.766003] Call Trace:
[   34.766418] 
[   34.766477]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.766585]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.766418] Call Trace:
[   34.766301]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766242]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766061]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766188]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766535]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766535]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766762]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.766644]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766703]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766003]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766061] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766823]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.766061]  ffffffff8107b2ad [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766061]  0000000000000000 0000000000000007 ffff88011ac16740 [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766061] 
[   34.766061]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766823]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.766120]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766120]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766644]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766003]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766003]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766061]  ffffffff810cdc31
[   34.766061]  0000000000000001 [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.766823]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766703]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766535]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766762]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766061]  ffffffff82c93100 ffff8801163a3d10 ffffffff81112ef0
[   34.766061] Call Trace:
[   34.766003]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766585]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.766242]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766360]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.766301]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766703]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766418]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.766644]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766644]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766762]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766120]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766477]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.766188]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766188]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766585]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766535]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766061]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766360]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766360]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766762]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766061]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766703]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766703]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766535]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766762]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766585]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766477]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766823]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766418]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.766120]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766188]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766003]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766585]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766061]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766703]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766703]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766644]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766120]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766823]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766535]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766301]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766418]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.766762]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766644]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766703]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766703]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766535]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766477]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766120]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766061]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766823]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766242]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766585]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766535]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766644]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766003]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766762]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766762]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766301]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766535]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766703]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766585]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766188]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766703]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766418]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.766585]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766644]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766762]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766120]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766242]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766301]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766823]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766242]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766477]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766003]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766762]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766418]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.766061]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766823]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766585]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766477]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766644]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766188]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766242]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766242]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766535]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766823]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766003]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766762]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766703]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766703] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766301]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766762]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766242]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766703]  ffffffff8107b2ad 0000000000000000 [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766360]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766120]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766061]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766003]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766535]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766823]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766703]  0000000000000007 [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766762]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766762]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766242]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766120] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766242] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766242]  ffffffff8107b2ad 0000000000000000 0000000000000007 ffff88011ac16740
[   34.766242]  ffff8801163a3ce0 [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766242]  ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31
[   34.766242]  0000000000000001 ffffffff82c93100 ffff8801163a3d10 ffffffff81112ef0
[   34.766242] Call Trace:
[   34.766585]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766188]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766120]  ffffffff8107b2ad 0000000000000000 [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766762] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766061]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766188]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766644]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766061]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766120]  0000000000000007 ffff88011ac16740
[   34.766120]  ffff8801163a3ce0 ffffffff810203fd [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766061]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766477]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766360]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766003]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766535]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766703]  ffff88011ac16740
[   34.766703]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31
[   34.766703]  0000000000000001 ffffffff82c93100 [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766120]  ffff8801163a3d00 ffffffff810cdc31
[   34.766120]  0000000000000001 ffffffff82c93100 ffff8801163a3d10 ffffffff81112ef0
[   34.766644] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766003]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766535]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766360]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766418]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766477]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766120]  ffff8801163a3d10 ffffffff81112ef0
[   34.766120] Call Trace:
[   34.766762]  ffffffff8107b2ad 0000000000000000 [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766061]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766762]  0000000000000007 ffff88011ac16740
[   34.766762]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31
[   34.766535] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766585]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766061]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766823]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766188]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766360]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766418]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766703] 
[   34.766703] Call Trace:
[   34.766762] 
[   34.766762]  0000000000000001 ffffffff82c93100 [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766535]  ffffffff8107b2ad 0000000000000000 [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766188]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766301]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766477]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766061]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766003]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766703]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766762]  ffff8801163a3d10 0000000000000007 ffff88011ac16740
[   34.766535]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31
[   34.766535]  0000000000000001 ffffffff82c93100 ffffffff8107b2ad [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766762]  ffffffff81112ef0
[   34.766762] Call Trace:
[   34.766120]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766242]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766644]  0000000000000000 [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766644]  0000000000000007 ffff88011ac16740
[   34.766644]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766535]  ffff8801163a3d10 ffffffff81112ef0
[   34.766535] Call Trace:
[   34.766003]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766188]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766188]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766823]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766418]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766418]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766703]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766585]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766242]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766360]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766644]  ffffffff810cdc31
[   34.766644]  0000000000000001 ffffffff82c93100 [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766301]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766003]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766762]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766535]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766418]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766360]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.766477]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766061]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766418]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766644]  ffff8801163a3d10 ffffffff81112ef0
[   34.766644] Call Trace:
[   34.766585]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766823]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766535]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766061]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766360]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766477]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766301]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766762]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766003]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766188]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766418]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766242]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766477]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766823] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766003]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766120]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766061]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766360]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766301]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.766003] Kevin: end of showstack(lock->task,lock,sp)
[   34.766188] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766823]  ffffffff8107b2ad [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766418]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766120]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766823]  0000000000000000 [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766360]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766188]  ffffffff8107b2ad 0000000000000000 [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766061]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766061] Kevin: end of showstack(lock->task,lock,sp)
[   34.766823]  0000000000000007 ffff88011ac16740
[   34.766823]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31
[   34.766823]  0000000000000001 [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766535]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766188]  0000000000000007 [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766301]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.766301]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766823]  ffffffff82c93100 [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766585]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766823]  ffff8801163a3d10 ffffffff81112ef0
[   34.766823] Call Trace:
[   34.766477]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766585] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766585]  ffffffff8107b2ad 0000000000000000 [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766120]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766242]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766585]  0000000000000007 ffff88011ac16740 [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766188]  ffff88011ac16740
[   34.766188]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00
[   34.766585]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31
[   34.766585]  0000000000000001 ffffffff82c93100 ffff8801163a3d10 ffffffff81112ef0 [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766360]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.766703]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766823]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766703]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766418]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766301]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766762]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766585] 
[   34.766585] Call Trace:
[   34.766418] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766535]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766188]  ffffffff810cdc31
[   34.766188]  0000000000000001 ffffffff82c93100 ffff8801163a3d10 ffffffff81112ef0
[   34.766188] Call Trace:
[   34.766418]  ffffffff8107b2ad 0000000000000000 0000000000000007 ffff88011ac16740 [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766703]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766188]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766823]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766242]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766477]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766703]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766823]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766762]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766418] 
[   34.766418]  ffff8801163a3ce0 ffffffff810203fd
[   34.766477] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766585]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766242]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766120]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766360]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.766418]  ffff8801163a3d00 [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766301]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766477]  ffffffff8107b2ad 0000000000000000 [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766120]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766360]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766360] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766360]  ffffffff8107b2ad 0000000000000000 [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766242]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766301] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.766188]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766188]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766120]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766418]  ffffffff810cdc31
[   34.766418]  0000000000000001 ffffffff82c93100 ffff8801163a3d10 ffffffff81112ef0
[   34.766418] Call Trace:
[   34.766360]  0000000000000007 ffff88011ac16740
[   34.766360]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31 [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766823]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766644]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766418]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766477]  0000000000000007 ffff88011ac16740
[   34.766360]  0000000000000001 ffffffff82c93100 ffff8801163a3d10 ffffffff81112ef0
[   34.766360] Call Trace:
[   34.766703]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766301]  ffffffff8107b2ad 0000000000000000 [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766242]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766644]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766120]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766477] 
[   34.766477]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31
[   34.766477]  0000000000000001 ffffffff82c93100 ffff8801163a3d10 ffffffff81112ef0
[   34.766477] Call Trace:
[   34.766585]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766535]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766360]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766301]  0000000000000007 ffff88011ac16740
[   34.766301]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31 [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766301] 
[   34.766301]  0000000000000001 ffffffff82c93100 [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766703]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766762]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766703]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766120]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766360]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766644]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766418]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766301]  ffff8801163a3d10 ffffffff81112ef0 [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766535]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766585]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766242]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766418]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766535]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766762]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766823]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766823]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766585]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766477]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766301] 
[   34.766301] Call Trace:
[   34.766418]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766703]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766703]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766762]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766644]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766360]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766360]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766585]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766418]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766120]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766585]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766644]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766242]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766535]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766762]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766585]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766823]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766360]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766360]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766418]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766242]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766762]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766477]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766823]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766188]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766535]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766120]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766644]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766188]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766120]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766360]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766535]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766188]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766823]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766301]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.766644]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766301]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.766242]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766703]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766301]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766477]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.766535]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766585]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766242]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766301]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766120]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766762]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766823]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766242]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766360]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766477]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.766644]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766644]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766703]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766418]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766823]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766762]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766301]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766120]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766120]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766301]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766703]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766188]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766644]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766120] Kevin: end of showstack(lock->task,lock,sp)
[   34.766477]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.766418]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766762]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766188]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766823]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766585]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766242] Kevin: end of showstack(lock->task,lock,sp)
[   34.766360]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766477]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.766477]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766188]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766301]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.766188]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766644]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766585]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766360]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766188]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766477]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766823]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766762]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766477]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766418]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766188]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766301]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.766703]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766477]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766823]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766644]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766301]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.766703] Kevin: end of showstack(lock->task,lock,sp)
[   34.766188]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766535]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766418]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766188]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766477]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766823]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766823]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766644]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766360]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766585]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766762]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766477]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766188]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766823]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766762]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766418]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766418]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766585]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766762] Kevin: end of showstack(lock->task,lock,sp)
[   34.766360]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766644]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766477]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766535]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766535]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766644] Kevin: end of showstack(lock->task,lock,sp)
[   34.766823] Kevin: end of showstack(lock->task,lock,sp)
[   34.766360]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766360]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766535] Kevin: end of showstack(lock->task,lock,sp)
[   34.766585]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766477]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766585]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766301]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.766301]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.766360]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766477]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766585]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766585]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766301]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.766418]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766585]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766188]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766301]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766188] Kevin: end of showstack(lock->task,lock,sp)
[   34.766360]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766585] Kevin: end of showstack(lock->task,lock,sp)
[   34.766418]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766301]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.766301]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.766360] Kevin: end of showstack(lock->task,lock,sp)
[   34.766477]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766477]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766418]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766477] Kevin: end of showstack(lock->task,lock,sp)
[   34.766301]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.766418]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766301]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.766418] Kevin: end of showstack(lock->task,lock,sp)
[   34.766301] Kevin: end of showstack(lock->task,lock,sp)
[   34.775864] Xenomai:Kevin: below is showstack(null,null) stuck on nucleus lock ffffffff81c2e6c0
[   34.775864]    waiter = kernel/xenomai/nucleus/intr.c:109 (xnintr_clock_handler(), CPU #0)
[   34.775864]    owner  = kernel/xenomai/nucleus/pod.c:2175 (__xnpod_schedule(), CPU #7)
[   34.775864]  ffffffff81c03c68 ffffffff819c2d71 ffffffff81c2e6c0 0000000000000000
[   34.775864]  0000000000000000 00000000ffffffff ffffffff819c2d71 ffffffff81c03cb0
[   34.775864]  ffffffff810059ec ffffffff81c03d20 ffffffff8110442d ffffffff819c2e58
[   34.775864] Call Trace:
[   34.775864]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.775864]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.775864]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.775864]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.775565] Xenomai:Kevin: below is showstack(null,null) stuck on nucleus lock ffffffff81c2e6c0
[   34.775565]    waiter = kernel/xenomai/nucleus/intr.c:109 (xnintr_clock_handler(), CPU #1)
[   34.775565]    owner  = kernel/xenomai/nucleus/pod.c:2175 (__xnpod_schedule(), CPU #7)
[   34.775565]  ffff8801162afc68 [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.775565]  ffffffff819c2d71 ffffffff81c2e6c0 0000000000000000 [<ffffffff8108d36d>] ? trace_hardirqs_on_caller+0x12d/0x1c0
[   34.775565] 
[   34.775565]  0000000000000001 00000000ffffffff [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775565]  ffffffff819c2d71 ffff8801162afcb0
[   34.775565]  ffffffff810059ec [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775617] Xenomai:Kevin: below is showstack(null,null) stuck on nucleus lock ffffffff81c2e6c0
[   34.775617]    waiter = kernel/xenomai/nucleus/intr.c:109 (xnintr_clock_handler(), CPU #2)
[   34.775617]    owner  = kernel/xenomai/nucleus/pod.c:2175 (__xnpod_schedule(), CPU #7)
[   34.775565]  ffff8801162afd20 ffff8801162cbc68 ffffffff8110442d [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775617]  ffffffff819c2d71 ffffffff819c2e58 ffffffff81c2e6c0
[   34.775617]  0000000000000000Call Trace:
[   34.775617] 
[   34.775617]  0000000000000002 [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775565]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.775617]  00000000ffffffff
[   34.775669] Xenomai:Kevin: below is showstack(null,null) stuck on nucleus lock ffffffff81c2e6c0
[   34.775669]    waiter = kernel/xenomai/nucleus/intr.c:109 (xnintr_clock_handler(), CPU #3)
[   34.775669]    owner  = kernel/xenomai/nucleus/pod.c:2175 (__xnpod_schedule(), CPU #7)
[   34.775864]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775565]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.775617]  ffffffff819c2d71 [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.775617]  ffff8801162cbcb0 ffff88011630fc68 ffffffff819c2d71 [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.775617] 
[   34.775864]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775617]  ffffffff810059ec ffffffff81c2e6c0
[   34.775721] Xenomai:Kevin: below is showstack(null,null) stuck on nucleus lock ffffffff81c2e6c0
[   34.775721]    waiter = kernel/xenomai/nucleus/intr.c:109 (xnintr_clock_handler(), CPU #4)
[   34.775721]    owner  = kernel/xenomai/nucleus/pod.c:2175 (__xnpod_schedule(), CPU #7)
[   34.775864]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.775617]  ffff8801162cbd20 ffff880116333c68 ffffffff8110442d ffffffff819c2d71 ffffffff819c2e58 0000000000000000 ffffffff81c2e6c0
[   34.775721]  0000000000000000 0000000000000003
[   34.775774] Xenomai:Kevin: below is showstack(null,null) stuck on nucleus lock ffffffff81c2e6c0
[   34.775774]    waiter = kernel/xenomai/nucleus/intr.c:109 (xnintr_clock_handler(), CPU #5)
[   34.775774]    owner  = kernel/xenomai/nucleus/pod.c:2175 (__xnpod_schedule(), CPU #7)
[   34.775721]  0000000000000004
[   34.775864]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775774]  ffff880116357c68 [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.775617] Call Trace:
[   34.775669]  00000000ffffffff 00000000ffffffff ffffffff819c2d71 ffffffff81c2e6c0 [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.775565]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.775669]  ffffffff819c2d71 [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.775669]  ffff88011630fcb0 [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.775774]  0000000000000000
[   34.775814] Xenomai:Kevin: below is showstack(null,null) stuck on nucleus lock ffffffff81c2e6c0
[   34.775814]    waiter = kernel/xenomai/nucleus/intr.c:109 (xnintr_clock_handler(), CPU #6)
[   34.775814]    owner  = kernel/xenomai/nucleus/pod.c:2175 (__xnpod_schedule(), CPU #7)
[   34.775565]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775669] 
[   34.775669]  ffffffff810059ec [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.775669]  ffff88011630fd20 [<ffffffff81630c25>] ? rest_init+0xd5/0xe0
[   34.775669]  ffffffff8110442d ffffffff819c2d71 ffff880116333cb0 ffffffff819c2e58
[   34.775864]  [<ffffffff81630b50>] ? csum_partial_copy_generic+0x170/0x170
[   34.775617]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.775774]  0000000000000005 [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775669] 
[   34.775669] Call Trace:
[   34.775565]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775774]  00000000ffffffff
[   34.775669]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.775774]  ffffffff819c2d71 ffffffff810059ec [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775721]  ffff880116333d20 [<ffffffff81edfced>] ? start_kernel+0x3cc/0x3d7
[   34.775617]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.775721]  ffffffff8110442d ffffffff819c2e58 [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.775774]  ffff880116357cb0 [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.775774] 
[   34.775617]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775669]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.775721] 
[   34.775669]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.775774]  ffffffff810059ec [<ffffffff81edf321>] ? x86_64_start_reservations+0x131/0x135
[   34.775617]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775565]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775721] Call Trace:
[   34.775774]  ffff880116357d20 [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775774]  ffffffff8110442d ffffffff819c2e58 [<ffffffff81edf456>] ? x86_64_start_kernel+0x131/0x138
[   34.775721]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.775617]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775565]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.775669]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.775864] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.775565]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775864]  ffffffff8107b2ad
[   34.775565]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.775774] Call Trace:
[   34.775721]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.775617]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775864]  0000000000000000 [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775774]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.775565]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.775864]  0000000000000007 [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.775669]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775864]  ffff88011ac16740 [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775774]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.775617]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.775864] 
[   34.775669]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775565]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.775774]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.775721]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.775669]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775864]  ffff8801163a3ce0 ffffffff810203fd [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775864]  ffff8801163a3d00 [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.775565]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775669]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775721]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.775617]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.775565] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.775669]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.775814]  ffff880116383c68 ffffffff810cdc31 [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.775565]  ffffffff8107b2ad
[   34.775721]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775864]  0000000000000001 [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775565]  0000000000000000 [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775864]  ffffffff82c93100 0000000000000007 [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775565]  ffff88011ac16740 ffff8801163a3d10 [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.775565] 
[   34.775774]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775617]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.775864]  ffffffff81112ef0 ffff8801163a3ce0 [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775814]  ffffffff819c2d71 [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775721]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775617]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.775565]  ffffffff810203fd [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775565]  ffff8801163a3d00 [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775617]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775565]  ffffffff810cdc31
[   34.775617] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.775669]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.775864] 
[   34.775721]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775565] 
[   34.775864] Call Trace:
[   34.775774]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775617]  ffffffff8107b2ad [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.775774]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.775864]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.775565]  0000000000000001 ffffffff82c93100 [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775669]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.775721]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775864]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.775669]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775565]  ffff8801163a3d10 0000000000000000 [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.775669] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.775774]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.775864]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.775721]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775565]  ffffffff81112ef0 0000000000000007 ffff88011ac16740
[   34.775669]  ffffffff8107b2ad [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.775565] Call Trace:
[   34.775864]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.775617] 
[   34.775669]  0000000000000000 [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775617]  ffff8801163a3ce0 [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.775669]  0000000000000007 [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.775774]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.775669]  ffff88011ac16740 ffffffff810203fd
[   34.775617]  ffff8801163a3d00 ffffffff810cdc31 [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.775669]  ffff8801163a3ce0 ffffffff810203fd [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.775721]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775774]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775669]  ffff8801163a3d00 [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.775864]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.775721]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.775774] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.775565]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.775669]  ffffffff810cdc31 ffffffff8107b2ad 0000000000000000 [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775565]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.775721]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.775617] 
[   34.775774]  0000000000000007 [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775669] 
[   34.775774]  ffff88011ac16740 [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775721]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775617]  0000000000000001
[   34.775721] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.775774] 
[   34.775617]  ffffffff82c93100 [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775565]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.775774]  ffff8801163a3ce0 0000000000000001 [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775617]  ffff8801163a3d10 ffffffff81112ef0 [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.775774]  ffffffff810203fd ffffffff82c93100 ffffffff8107b2ad ffff8801163a3d00 [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775721]  0000000000000000
[   34.775721]  0000000000000007Call Trace:
[   34.775565]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775864]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.775617]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.775721]  ffff88011ac16740 [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.775617]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.775774]  ffffffff810cdc31 [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.775669]  ffff8801163a3d10 [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775669]  ffffffff81112ef0 [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.775669] 
[   34.775864]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775565]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775774] 
[   34.775669] Call Trace:
[   34.775774]  0000000000000001 [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775721] 
[   34.775774]  ffffffff82c93100 ffff8801163a3ce0 ffff8801163a3d10
[   34.775864] Kevin: end of showstack(lock->task,lock,sp)
[   34.775669]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.775721]  ffffffff810203fd ffff8801163a3d00 [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.775721]  ffffffff810cdc31 [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775721] 
[   34.775774]  ffffffff81112ef0 0000000000000001 [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.775565]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775617]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.775774] 
[   34.775721]  ffffffff82c93100Call Trace:
[   34.775721]  ffff8801163a3d10 ffffffff81112ef0 [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.775617]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.775669]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.775721] 
[   34.775565]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.775669]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.775814]  ffffffff81c2e6c0 [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.775774]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.775721] Call Trace:
[   34.775669]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.775617]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775565]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.775721]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.775669]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.775617]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775565]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.775774]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.775669]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.775617]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775669]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775814]  0000000000000000 [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.775774]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.775565]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775721]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.775774]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.775565] Kevin: end of showstack(lock->task,lock,sp)
[   34.775617]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775669]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775617]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775774]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.775669]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775774]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.775669]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775721]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.775617]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775774]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775669]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775721]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.775774]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775617]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.775774]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775669]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775721]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.775774]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775669]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.775721]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.775774]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775721]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775669]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.775814] 
[   34.775774]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775721]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775669]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.775774]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.775617]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.775669]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775774]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.775669] Kevin: end of showstack(lock->task,lock,sp)
[   34.775814]  0000000000000006 00000000ffffffff ffffffff819c2d71 ffff880116383cb0 [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.775774]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.775814] 
[   34.775814]  ffffffff810059ec ffff880116383d20 [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775617]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775814]  ffffffff8110442d
[   34.775617] Kevin: end of showstack(lock->task,lock,sp)
[   34.775721]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775814]  ffffffff819c2e58 [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775814] 
[   34.775774] Kevin: end of showstack(lock->task,lock,sp)
[   34.775721]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775814] Call Trace:
[   34.775721]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775721]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.775814]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.775814]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.775721]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.775721]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.775814]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.775814]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.775814]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.775721]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775814]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775721] Kevin: end of showstack(lock->task,lock,sp)
[   34.775814]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775814]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775814]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775814]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775814]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.775814]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775814]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.775814]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.775814]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.775814]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.775814]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775814] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.775814]  ffffffff8107b2ad 0000000000000000 0000000000000007 ffff88011ac16740
[   34.775814]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31
[   34.775814]  0000000000000001 ffffffff82c93100 ffff8801163a3d10 ffffffff81112ef0
[   34.775814] Call Trace:
[   34.775814]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.775814]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.775814]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.775814]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.775814]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.775814]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.775814]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.775814]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.775814]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.775814]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.775814]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.775814]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.775814]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775814]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.775814]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.775814]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.775814]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.775814] Kevin: end of showstack(lock->task,lock,sp)
[   34.765946]  ffff8801163bfc68 ffffffff819c2d71 ffffffff81c2e6c0 0000000000000000
[   34.765946]  0000000000000008 00000000ffffffff ffffffff819c2d71 ffff8801163bfcb0
[   34.765946]  ffffffff810059ec ffff8801163bfd20 ffffffff8110442d ffffffff819c2e58
[   34.765946] Call Trace:
[   34.765946]  [<ffffffff810059ec>] ? show_stack+0x1c/0x20
[   34.765946]  [<ffffffff8110442d>] ? __xnlock_spin+0xdd/0x120
[   34.765946]  [<ffffffff81088e4d>] ? trace_hardirqs_off+0xd/0x10
[   34.765946]  [<ffffffff8110350a>] ? xnintr_clock_handler+0x39a/0x3b0
[   34.765946]  [<ffffffff8108d98f>] ? __lock_acquire+0x23f/0x16a0
[   34.765946]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.765946]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.765946]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.765946]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.765946]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.765946]  [<ffffffff8108f2c7>] ? lock_release+0x147/0x2b0
[   34.765946]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.765946]  [<ffffffff8101f614>] ? __ipipe_halt_root+0x34/0x50
[   34.765946]  [<ffffffff8101f607>] ? __ipipe_halt_root+0x27/0x50
[   34.765946]  [<ffffffff8100b4b2>] ? default_idle+0xb2/0x240
[   34.765946]  [<ffffffff810019ce>] ? cpu_idle+0x7e/0xe0
[   34.765946]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.765946] Kevin: above is showstack(null,null) below is showstack(lock->task,lock,sp)
[   34.765946]  ffffffff8107b2ad 0000000000000000 0000000000000007 ffff88011ac16740
[   34.765946]  ffff8801163a3ce0 ffffffff810203fd ffff8801163a3d00 ffffffff810cdc31
[   34.765946]  0000000000000001 ffffffff82c93100 ffff8801163a3d10 ffffffff81112ef0
[   34.765946] Call Trace:
[   34.765946]  [<ffffffff8107b2ad>] ? sched_clock_local+0x1d/0x90
[   34.765946]  [<ffffffff810203fd>] ? lapic_next_event+0x1d/0x30
[   34.765946]  [<ffffffff810cdc31>] ? ipipe_timer_set+0x31/0x50
[   34.765946]  [<ffffffff81112ef0>] ? xntimer_next_local_shot+0x80/0xb0
[   34.765946]  [<ffffffff8111342e>] ? xntimer_tick_aperiodic+0x19e/0x200
[   34.765946]  [<ffffffff81103475>] ? xnintr_clock_handler+0x305/0x3b0
[   34.765946]  [<ffffffff810cc63d>] ? __ipipe_do_sync_stage+0x13d/0x1f0
[   34.765946]  [<ffffffff810cc836>] ? __ipipe_dispatch_irq_fast+0x96/0x170
[   34.765946]  [<ffffffff810204dd>] ? lapic_itimer_ack+0x1d/0x20
[   34.765946]  [<ffffffff810cd83f>] ? __ipipe_dispatch_irq+0x9f/0x1e0
[   34.765946]  [<ffffffff8101eeea>] ? __ipipe_handle_irq+0x7a/0x230
[   34.765946]  [<ffffffff81655340>] ? apic_timer_interrupt+0x60/0x90
[   34.765946]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.765946]  [<ffffffff81649290>] ? preempt_schedule+0x80/0x80
[   34.765946]  [<ffffffff81649ccf>] ? schedule+0x3f/0x60
[   34.765946]  [<ffffffff81001a0c>] ? cpu_idle+0xbc/0xe0
[   34.765946]  [<ffffffff81643373>] ? start_secondary+0x1b0/0x1b5
[   34.765946] Kevin: end of showstack(lock->task,lock,sp)