| 1 | kdebug> thread 942
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| 2 | THREAD: 0xffffffff9677a740
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| 3 | id: 942 (0x3ae)
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| 4 | serial_number: 942
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| 5 | name: "BUSBRoster looper"
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| 6 | hash_next: 0x0000000000000000
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| 7 | team_next: 0xffffffff9677ec00
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| 8 | priority: 10 (I/O: -1)
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| 9 | state: waiting
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| 10 | cpu: 0x0000000000000000
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| 11 | sig_pending: 0x0 (blocked: 0x0, before sigsuspend(): 0x0)
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| 12 | in_kernel: 1
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| 13 | waiting for: mutex 0xffffffff8020f100
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| 14 | fault_handler: 0x0000000000000000
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| 15 | team: 0xffffffff95c57808, "usbwatch"
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| 16 | exit.sem: 4749
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| 17 | exit.status: 0x0 (No error)
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| 18 | exit.waiters:
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| 19 | kernel_stack_area: 10368
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| 20 | kernel_stack_base: 0xffffffff927c5000
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| 21 | user_stack_area: 10369
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| 22 | user_stack_base: 0x00007f33a46ad000
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| 23 | user_local_storage: 0x00007f33a46ed000
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| 24 | user_thread: 0x00007f83bd5d6040
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| 25 | kernel_errno: 0x0 (No error)
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| 26 | kernel_time: 319
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| 27 | user_time: 237
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| 28 | flags: 0x0
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| 29 | architecture dependant section:
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| 30 | rsp: 0xffffffff927c9c08
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| 31 | syscall_rsp: 0xffffffff927ca000
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| 32 | user_rsp: 0x00007f33a46ec4d8
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| 33 | fpu_state at 0xffffffff9677aa80
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| 34 | scheduler data:
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| 35 | priority_penalty: 0
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| 36 | additional_penalty: 5 (25035)
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| 37 | effective_priority: 5
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| 38 | time_used: 805 us (quantum: 3500 us)
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| 39 | stolen_time: 0 us
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| 40 | quantum_start: 282499720 us
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| 41 | needed_load: 0%
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| 42 | went_sleep: 282499728
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| 43 | went_sleep_active: 21102684
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| 44 | core: 1
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| 45 | cache affinity has expired
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| 46 |
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| 47 | kdebug> mutex 0xffffffff8020f100
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| 48 | mutex 0xffffffff8020f100:
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| 49 | name: legacy driver
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| 50 | flags: 0x0
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| 51 | holder: 471
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| 52 | waiting threads: 942
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| 53 |
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| 54 | kdebug> thread 471
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| 55 | THREAD: 0xffffffff824bc180
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| 56 | id: 471 (0x1d7)
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| 57 | serial_number: 471
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| 58 | name: "usb explore"
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| 59 | hash_next: 0x0000000000000000
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| 60 | team_next: 0xffffffff824b5380
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| 61 | priority: 5 (I/O: -1)
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| 62 | state: waiting
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| 63 | cpu: 0x0000000000000000
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| 64 | sig_pending: 0x0 (blocked: 0x0, before sigsuspend(): 0x0)
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| 65 | in_kernel: 1
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| 66 | waiting for: mutex 0xffffffff8235e800
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| 67 | fault_handler: 0x0000000000000000
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| 68 | team: 0xffffffff820ae600, "kernel_team"
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| 69 | exit.sem: 1874
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| 70 | exit.status: 0x0 (No error)
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| 71 | exit.waiters:
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| 72 | kernel_stack_area: 753
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| 73 | kernel_stack_base: 0xffffffff812f4000
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| 74 | user_stack_area: -1
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| 75 | user_stack_base: 0x0000000000000000
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| 76 | user_local_storage: 0x0000000000000000
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| 77 | user_thread: 0x0000000000000000
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| 78 | kernel_errno: 0x0 (No error)
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| 79 | kernel_time: 93738
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| 80 | user_time: 0
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| 81 | flags: 0x0
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| 82 | architecture dependant section:
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| 83 | rsp: 0xffffffff812f8ce8
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| 84 | syscall_rsp: 0xffffffff812f9000
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| 85 | user_rsp: 0x0000000000000000
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| 86 | fpu_state at 0xffffffff824bc4c0
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| 87 | scheduler data:
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| 88 | priority_penalty: 0
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| 89 | additional_penalty: 4 (5399)
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| 90 | effective_priority: 1
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| 91 | time_used: 1352 us (quantum: 4700 us)
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| 92 | stolen_time: 0 us
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| 93 | quantum_start: 282499727 us
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| 94 | needed_load: 16%
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| 95 | went_sleep: 282499731
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| 96 | went_sleep_active: 17852534
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| 97 | core: 0
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| 98 | cache affinity has expired
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| 99 |
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| 100 | kdebug> mutex 0xffffffff8235e800
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| 101 | mutex 0xffffffff8235e800:
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| 102 | name: devfs lock
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| 103 | flags: 0x0
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| 104 | holder: 942
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| 105 | waiting threads: 471 684 978
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| 106 |
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| 107 | kdebug> bt 942
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| 108 | stack trace for thread 942 "BUSBRoster looper"
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| 109 | kernel stack: 0xffffffff927c5000 to 0xffffffff927ca000
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| 110 | user stack: 0x00007f33a46ad000 to 0x00007f33a46ed000
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| 111 | frame caller <image>:function + offset
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| 112 | 0 ffffffff927c9c50 (+ 112) ffffffff800990da <kernel_x86_64> reschedule(int) + 0x4fa
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| 113 | 1 ffffffff927c9cc0 (+ 64) ffffffff80088ce6 <kernel_x86_64> thread_block + 0xf6
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| 114 | 2 ffffffff927c9d00 (+ 80) ffffffff8009492a <kernel_x86_64> _mutex_lock + 0xda
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| 115 | 3 ffffffff927c9d50 (+ 32) ffffffff80094b1e <kernel_x86_64> recursive_lock_lock + 0x3e
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| 116 | 4 ffffffff927c9d70 (+ 48) ffffffff800d406c <kernel_x86_64> _GLOBAL__N_1::LegacyDevice::Removed() + 0x1c
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| 117 | 5 ffffffff927c9da0 (+ 80) ffffffff800d0c2a <kernel_x86_64> devfs_delete_vnode(_GLOBAL__N_1::devfs*, _GLOBAL__N_1::devfs_vnode*, bool) + 0x21a
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| 118 | 6 ffffffff927c9df0 (+ 48) ffffffff800d0c9c <kernel_x86_64> devfs_remove_vnode(fs_volume*, fs_vnode*, bool) + 0x4c
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| 119 | 7 ffffffff927c9e20 (+ 64) ffffffff80100151 <kernel_x86_64> free_vnode(vnode*, bool) + 0x201
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| 120 | 8 ffffffff927c9e60 (+ 96) ffffffff801019e4 <kernel_x86_64> dec_vnode_ref_count(vnode*, bool, bool) + 0x2f4
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| 121 | 9 ffffffff927c9ec0 (+ 32) ffffffff800f1424 <kernel_x86_64> put_fd + 0x84
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| 122 | 10 ffffffff927c9ee0 (+ 64) ffffffff800f16f3 <kernel_x86_64> close_fd_index + 0xc3
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| 123 | 11 ffffffff927c9f20 (+ 16) ffffffff80152a98 <kernel_x86_64> x86_64_syscall_entry + 0xfe
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| 124 | user iframe at 0xffffffff927c9f30 (end = 0xffffffff927c9ff8)
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| 125 | rax 0x97 rbx 0x103b9643e4d0 rcx 0x62667000a1
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| 126 | rdx 0x0 rsi 0xffffffffffffffff rdi 0x4
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| 127 | rbp 0x7f33a46ec4f0 r8 0x2d r9 0x0
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| 128 | r10 0x7 r11 0x3202 r12 0x103b9641e200
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| 129 | r13 0xcc r14 0x1 r15 0x7f33a46ec694
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| 130 | rip 0x62667000a1 rsp 0x7f33a46ec4d8 rflags 0x3202
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| 131 | vector: 0x63, error code: 0x0
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| 132 | 12 ffffffff927c9f30 (+139861616108992) 00000062667000a1 <libroot.so> _kern_close + 0x09
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| 133 | 13 00007f33a46ec4f0 (+ 48) 0000003adf6415ac <libdevice.so> BUSBDevice::Unset() + 0x1c
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| 134 | 14 00007f33a46ec520 (+ 32) 0000003adf6416b1 <libdevice.so> BUSBDevice::~BUSBDevice() + 0x11
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| 135 | 15 00007f33a46ec540 (+ 80) 0000003adf6427da <libdevice.so> WatchedEntry::~WatchedEntry() + 0x3a
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| 136 | 16 00007f33a46ec590 (+ 48) 0000003adf6428e1 <libdevice.so> WatchedEntry::EntryRemoved(long) + 0x91
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| 137 | 17 00007f33a46ec5c0 (+ 48) 0000003adf6428a9 <libdevice.so> WatchedEntry::EntryRemoved(long) + 0x59
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| 138 | 18 00007f33a46ec5f0 (+ 48) 0000003adf6428a9 <libdevice.so> WatchedEntry::EntryRemoved(long) + 0x59
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| 139 | 19 00007f33a46ec620 (+ 96) 0000003adf642d78 <libdevice.so> RosterLooper::MessageReceived(BMessage*) + 0x68
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| 140 | 20 00007f33a46ec680 (+ 80) 0000021036fba1dc <libbe.so> BLooper::task_looper() + 0x26c
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| 141 | 21 00007f33a46ec6d0 (+ 32) 0000021036fb8901 <libbe.so> BLooper::_task0_(void*) + 0x21
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| 142 | 22 00007f33a46ec6f0 (+ 32) 00000062666ff2e9 <libroot.so> _thread_do_exit_work (nearest) + 0x79
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| 143 | 23 00007f33a46ec710 (+ 0) 00007ffd78154260 <commpage> commpage_thread_exit + 0x00
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| 144 |
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| 145 | kdebug> bt 471
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| 146 | stack trace for thread 471 "usb explore"
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| 147 | kernel stack: 0xffffffff812f4000 to 0xffffffff812f9000
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| 148 | frame caller <image>:function + offset
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| 149 | 0 ffffffff812f8d30 (+ 112) ffffffff800990da <kernel_x86_64> reschedule(int) + 0x4fa
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| 150 | 1 ffffffff812f8da0 (+ 64) ffffffff80088ce6 <kernel_x86_64> thread_block + 0xf6
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| 151 | 2 ffffffff812f8de0 (+ 80) ffffffff8009492a <kernel_x86_64> _mutex_lock + 0xda
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| 152 | 3 ffffffff812f8e30 (+ 32) ffffffff80094b1e <kernel_x86_64> recursive_lock_lock + 0x3e
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| 153 | 4 ffffffff812f8e50 (+ 48) ffffffff800d063c
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| 154 | [*** READ/WRITE FAULT (?), pc: 0xffffffff819a8812 ***]
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