I'm hitting the following BUG after a few minutes of application
execution. Is there anything I can do to help track this down?
/Tobias
[ 1148.792450] ------------[ cut here ]------------
[ 1148.792458] kernel BUG at kernel/rtmutex_common.h:75!
[ 1148.792464] invalid opcode: 0000 [#1] PREEMPT SMP
[ 1148.792469] Modules linked in:
[ 1148.792474]
[ 1148.792480] Pid: 2074, comm: fb-lbgui Not tainted 3.0.1-rt8 #17 ICP / iEi H570/E218
[ 1148.792489] EIP: 0060:[<c106ff5c>] EFLAGS: 00010292 CPU: 1
[ 1148.792501] EIP is at remove_waiter+0x14c/0x150
[ 1148.792506] EAX: f5efc1c0 EBX: f5efc1c8 ECX: f5c65a90 EDX: f55afe8c
[ 1148.792511] ESI: f55afe8c EDI: f55afe8c EBP: f60dde5c ESP: f60dde30
[ 1148.792516] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 1148.792523] Process fb-lbgui (pid: 2074, ti=f60dc000 task=f6046030 task.ti=f60dc000)
[ 1148.792527] Stack:
[ 1148.792530] c106dd37 f6046440 f60dde44 c103478b 00000001 f5efc1cc f5efc1c0 f6046031
[ 1148.792540] f5efc1c8 fffffff5 f55afe8c f60dde74 c1070349 00000001 f55afe54 c197a4ac
[ 1148.792550] 00000001 f60ddedc c106e602 00000001 f5c65a90 00000000 00000000 00000000
[ 1148.792559] Call Trace:
[ 1148.792567] [<c106dd37>] ? lookup_pi_state+0x177/0x240
[ 1148.792576] [<c103478b>] ? get_parent_ip+0xb/0x40
[ 1148.792583] [<c1070349>] rt_mutex_start_proxy_lock+0x59/0xa0
[ 1148.792591] [<c106e602>] futex_requeue+0x422/0x740
[ 1148.792600] [<c106edd8>] do_futex+0x78/0x910
[ 1148.792607] [<c10e9805>] ? fget_light+0x55/0xd0
[ 1148.792616] [<c14d0444>] ? sockfd_lookup_light+0x24/0x80
[ 1148.792624] [<c106f6d9>] sys_futex+0x69/0x120
[ 1148.792632] [<c123df1e>] ? copy_to_user+0x2e/0x50
[ 1148.792639] [<c105aad4>] ? sys_clock_gettime+0x54/0x90
[ 1148.792648] [<c1639d01>] syscall_call+0x7/0xb
[ 1148.792656] [<c1630000>] ? cache_add_dev+0x9e/0x2fb
[ 1148.792660] Code: c1 89 4d dc e8 76 9a 5c 00 8b 4d dc e9 49 ff ff ff ba 56 02 00 00 b8 6b f9 79 c1 89 4d dc e8 cc d5 fc ff 8b 4d dc e9 3b ff ff ff <0f> 0b 66 90 55 89 e5 57 89 c7 56 89 ce 53 89 d3 83 ec 20 8b 40
[ 1148.792708] EIP: [<c106ff5c>] remove_waiter+0x14c/0x150 SS:ESP 0068:f60dde30
[ 1148.796388] ---[ end trace 0000000000000002 ]---
[ 1148.796396] note: fb-lbgui[2074] exited with preempt_count 1
[ 1148.796414] ------------[ cut here ]------------
[ 1148.796419] kernel BUG at kernel/rtmutex.c:724!
[ 1148.796423] invalid opcode: 0000 [#2] PREEMPT SMP
[ 1148.796428] Modules linked in:
[ 1148.796432]
[ 1148.796437] Pid: 2074, comm: fb-lbgui Tainted: G D 3.0.1-rt8 #17 ICP / iEi H570/E218
[ 1148.796445] EIP: 0060:[<c16394e0>] EFLAGS: 00010246 CPU: 1
[ 1148.796452] EIP is at rt_spin_lock_slowlock+0x150/0x170
[ 1148.796457] EAX: f6046030 EBX: c19798e0 ECX: c19798ec EDX: f6046030
[ 1148.796462] ESI: f6046030 EDI: f6046030 EBP: f60ddc3c ESP: f60ddbf0
[ 1148.796468] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 1148.796474] Process fb-lbgui (pid: 2074, ti=f60dc000 task=f6046030 task.ti=f60dc000)
[ 1148.796478] Stack:
[ 1148.796480] 00000001 c1790006 00000006 f6046030 f6046030 f60ddc18 c1037c09 f6c40bc0
[ 1148.796490] f6c40bc8 00000005 f60ddc68 c10e4c64 00000003 00000000 f6046030 f60ddc01
[ 1148.796500] f5efc1c0 f6046030 c19798e0 f60ddc44 c16397a0 f60ddc6c c106e9a9 f60464e0
[ 1148.796509] Call Trace:
[ 1148.796518] [<c1037c09>] ? migrate_enable+0xe9/0x120
[ 1148.796526] [<c10e4c64>] ? cache_alloc_refill+0x1c4/0x590
[ 1148.796534] [<c16397a0>] rt_spin_lock+0x20/0x30
[ 1148.796541] [<c106e9a9>] exit_pi_state_list+0x89/0x130
[ 1148.796549] [<c103b1b1>] mm_release+0xc1/0xe0
[ 1148.796556] [<c1037c09>] ? migrate_enable+0xe9/0x120
[ 1148.796563] [<c103f2d8>] exit_mm+0x18/0x120
[ 1148.796570] [<c1040caf>] do_exit+0x12f/0x840
[ 1148.796578] [<c103ed58>] ? kmsg_dump+0x98/0xc0
[ 1148.796584] [<c163753c>] ? printk+0x18/0x1a
[ 1148.796592] [<c1005c36>] oops_end+0x86/0xc0
[ 1148.796599] [<c1005dcf>] die+0x4f/0x70
[ 1148.796605] [<c1002d16>] do_trap+0x96/0xd0
[ 1148.796611] [<c1002fb0>] ? do_bounds+0x80/0x80
[ 1148.796617] [<c1003036>] do_invalid_op+0x86/0xa0
[ 1148.796625] [<c106ff5c>] ? remove_waiter+0x14c/0x150
[ 1148.796632] [<c1239d58>] ? timerqueue_del+0x28/0x70
[ 1148.796639] [<c103478b>] ? get_parent_ip+0xb/0x40
[ 1148.796645] [<c1034833>] ? sub_preempt_count+0x73/0xb0
[ 1148.796652] [<c16399c1>] ? _raw_spin_unlock_irqrestore+0x11/0x30
[ 1148.796659] [<c105f657>] ? hrtimer_try_to_cancel+0x37/0xe0
[ 1148.796666] [<c105fde6>] ? hrtimer_cancel+0x16/0x20
[ 1148.796673] [<c106d88d>] ? futex_wait_requeue_pi+0x24d/0x410
[ 1148.796681] [<c163a302>] error_code+0x5a/0x60
[ 1148.796689] [<c103007b>] ? select_task_rq_fair+0x5b/0x990
[ 1148.796696] [<c1002fb0>] ? do_bounds+0x80/0x80
[ 1148.796702] [<c106ff5c>] ? remove_waiter+0x14c/0x150
[ 1148.796709] [<c106dd37>] ? lookup_pi_state+0x177/0x240
[ 1148.796715] [<c103478b>] ? get_parent_ip+0xb/0x40
[ 1148.796723] [<c1070349>] rt_mutex_start_proxy_lock+0x59/0xa0
[ 1148.796730] [<c106e602>] futex_requeue+0x422/0x740
[ 1148.796739] [<c106edd8>] do_futex+0x78/0x910
[ 1148.796746] [<c10e9805>] ? fget_light+0x55/0xd0
[ 1148.796754] [<c14d0444>] ? sockfd_lookup_light+0x24/0x80
[ 1148.796762] [<c106f6d9>] sys_futex+0x69/0x120
[ 1148.796769] [<c123df1e>] ? copy_to_user+0x2e/0x50
[ 1148.796776] [<c105aad4>] ? sys_clock_gettime+0x54/0x90
[ 1148.796783] [<c1639d01>] syscall_call+0x7/0xb
[ 1148.796791] [<c1630000>] ? cache_add_dev+0x9e/0x2fb
[ 1148.796795] Code: 45 cc 39 45 cc 75 34 89 d8 e8 1d 05 00 00 83 c4 40 5b 5e 5f 5d c3 90 8d 74 26 00 83 63 0c fe 8d 45 cc 39 45 cc 74 e0 eb 12 0f 0b <0f> 0b 8d 43 04 89 43 04 89 43 08 e9 cd fe ff ff 0f 0b 0f 0b 0f
[ 1148.796844] EIP: [<c16394e0>] rt_spin_lock_slowlock+0x150/0x170 SS:ESP 0068:f60ddbf0
[ 1148.978804] ---[ end trace 0000000000000003 ]---
[ 1148.978809] Fixing recursive fault but reboot is needed!
[ 1148.978815] BUG: scheduling while atomic: fb-lbgui/2074/0x00000003
[ 1148.978819] Modules linked in:
[ 1148.978825] Pid: 2074, comm: fb-lbgui Tainted: G D 3.0.1-rt8 #17
[ 1148.978830] Call Trace:
[ 1148.978839] [<c102e9f9>] __schedule_bug+0x59/0x60
[ 1148.978847] [<c1637c67>] __schedule+0x657/0x790
[ 1148.978857] [<c1037a90>] schedule+0x20/0x80
[ 1148.978864] [<c104138c>] do_exit+0x80c/0x840
[ 1148.978871] [<c103ed58>] ? kmsg_dump+0x98/0xc0
[ 1148.978878] [<c163753c>] ? printk+0x18/0x1a
[ 1148.978885] [<c1005c36>] oops_end+0x86/0xc0
[ 1148.978891] [<c1005dcf>] die+0x4f/0x70
[ 1148.978898] [<c1002d16>] do_trap+0x96/0xd0
[ 1148.978904] [<c1002fb0>] ? do_bounds+0x80/0x80
[ 1148.978910] [<c1003036>] do_invalid_op+0x86/0xa0
[ 1148.978917] [<c16394e0>] ? rt_spin_lock_slowlock+0x150/0x170
[ 1148.978925] [<c123a294>] ? put_dec+0x94/0xa0
[ 1148.978932] [<c123b3f6>] ? number.clone.1+0x2d6/0x2f0
[ 1148.978941] [<c1062083>] ? sched_clock_local+0xd3/0x1c0
[ 1148.978949] [<c163a302>] error_code+0x5a/0x60
[ 1148.978956] [<c1002fb0>] ? do_bounds+0x80/0x80
[ 1148.978962] [<c16394e0>] ? rt_spin_lock_slowlock+0x150/0x170
[ 1148.978970] [<c1037c09>] ? migrate_enable+0xe9/0x120
[ 1148.978978] [<c10e4c64>] ? cache_alloc_refill+0x1c4/0x590
[ 1148.978985] [<c16397a0>] rt_spin_lock+0x20/0x30
[ 1148.978992] [<c106e9a9>] exit_pi_state_list+0x89/0x130
[ 1148.979000] [<c103b1b1>] mm_release+0xc1/0xe0
[ 1148.979025] [<c1037c09>] ? migrate_enable+0xe9/0x120
[ 1148.979036] [<c103f2d8>] exit_mm+0x18/0x120
[ 1148.979047] [<c1040caf>] do_exit+0x12f/0x840
[ 1148.979056] [<c103ed58>] ? kmsg_dump+0x98/0xc0
[ 1148.979062] [<c163753c>] ? printk+0x18/0x1a
[ 1148.979070] [<c1005c36>] oops_end+0x86/0xc0
[ 1148.979076] [<c1005dcf>] die+0x4f/0x70
[ 1148.979082] [<c1002d16>] do_trap+0x96/0xd0
[ 1148.979088] [<c1002fb0>] ? do_bounds+0x80/0x80
[ 1148.979094] [<c1003036>] do_invalid_op+0x86/0xa0
[ 1148.979102] [<c106ff5c>] ? remove_waiter+0x14c/0x150
[ 1148.979109] [<c1239d58>] ? timerqueue_del+0x28/0x70
[ 1148.979115] [<c103478b>] ? get_parent_ip+0xb/0x40
[ 1148.979121] [<c1034833>] ? sub_preempt_count+0x73/0xb0
[ 1148.979128] [<c16399c1>] ? _raw_spin_unlock_irqrestore+0x11/0x30
[ 1148.979135] [<c105f657>] ? hrtimer_try_to_cancel+0x37/0xe0
[ 1148.979142] [<c105fde6>] ? hrtimer_cancel+0x16/0x20
[ 1148.979149] [<c106d88d>] ? futex_wait_requeue_pi+0x24d/0x410
[ 1148.979156] [<c163a302>] error_code+0x5a/0x60
[ 1148.979163] [<c103007b>] ? select_task_rq_fair+0x5b/0x990
[ 1148.979170] [<c1002fb0>] ? do_bounds+0x80/0x80
[ 1148.979176] [<c106ff5c>] ? remove_waiter+0x14c/0x150
[ 1148.979183] [<c106dd37>] ? lookup_pi_state+0x177/0x240
[ 1148.979189] [<c103478b>] ? get_parent_ip+0xb/0x40
[ 1148.979197] [<c1070349>] rt_mutex_start_proxy_lock+0x59/0xa0
[ 1148.979204] [<c106e602>] futex_requeue+0x422/0x740
[ 1148.979213] [<c106edd8>] do_futex+0x78/0x910
[ 1148.979220] [<c10e9805>] ? fget_light+0x55/0xd0
[ 1148.979227] [<c14d0444>] ? sockfd_lookup_light+0x24/0x80
[ 1148.979236] [<c106f6d9>] sys_futex+0x69/0x120
[ 1148.979242] [<c123df1e>] ? copy_to_user+0x2e/0x50
[ 1148.979250] [<c105aad4>] ? sys_clock_gettime+0x54/0x90
[ 1148.979257] [<c1639d01>] syscall_call+0x7/0xb
[ 1148.979265] [<c1630000>] ? cache_add_dev+0x9e/0x2fb
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