PANIC: acquire_spinlock(): Failed to acquire spinlock 0xd1d52fe0 for a long time!
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Thread 2159 "pthread func" running on CPU 1
stack trace for thread 2159 "pthread func"
    kernel stack: 0x8221f000 to 0x82223000
      user stack: 0x7117f000 to 0x711bf000
frame               caller     <image>:function + offset
 0 82222aa8 (+  32) 80141942   <kernel_x86> arch_debug_stack_trace + 0x12
 1 82222ac8 (+  16) 800a187f   <kernel_x86> stack_trace_trampoline(NULL) + 0x0b
 2 82222ad8 (+  12) 8013367e   <kernel_x86> arch_debug_call_with_fault_handler + 0x1b
 3 82222ae4 (+  48) 800a33ea   <kernel_x86> debug_call_with_fault_handler + 0x5a
 4 82222b14 (+  64) 800a1a9b   <kernel_x86> kernel_debugger_loop(0x80184777 "PANIC: ", 0x80165e20 "acquire_spinlock(): Failed to acquire spinlock %p for a long time!", 0x82222bc0 "▒/▒▒▒+"▒04▒0.▒▒y", int32: 1) + 0x217
 5 82222b54 (+  48) 800a1e17   <kernel_x86> kernel_debugger_internal(0x80184777 "PANIC: ", 0x80165e20 "acquire_spinlock(): Failed to acquire spinlock %p for a long time!", 0x82222bc0 "▒/▒▒▒+"▒04▒0.▒▒y", int32: 1) + 0x53
 6 82222b84 (+  48) 800a3772   <kernel_x86> panic + 0x3a
 7 82222bb4 (+  48) 80073453   <kernel_x86> acquire_spinlock + 0x57
 8 82222be4 (+  64) 8007855e   <kernel_x86> BKernel::Team<0xd1f0f608>::CPUTime(BKernel::Team: 0x2c00, true) + 0x6e
 9 82222c24 (+  80) 8008aba8   <kernel_x86> BKernel::TeamTimeUserTimer<0xd2cda8d0>::_Update(false) + 0x7c
10 82222c74 (+  48) 8008a953   <kernel_x86> BKernel::TeamTimeUserTimer<0xd2cda8d0>::Update(BKernel::Thread*: NULL) + 0x67
11 82222ca4 (+  48) 8008cda6   <kernel_x86> user_timer_continue_cpu_timers + 0x52
12 82222cd4 (+  64) 8009311e   <kernel_x86> thread_resumes(BKernel::Thread*: 0xd1d52e30) + 0xa6
13 82222d14 (+ 240) 80094206   <kernel_x86> reschedule(int32: 6) + 0x1016
14 82222e04 (+  48) 800942a1   <kernel_x86> scheduler_reschedule + 0x61
15 82222e34 (+  96) 80086382   <kernel_x86> thread_block_with_timeout + 0x1ae
16 82222e94 (+  80) 80082ee6   <kernel_x86> common_snooze_etc(int64: 6024229941, int32: 0, uint32: 0x15 (21), NULL) + 0x9e
17 82222ee4 (+  96) 80087480   <kernel_x86> _user_snooze_etc + 0xac
18 82222f44 (+ 100) 8013623f   <kernel_x86> handle_syscall + 0xdc
user iframe at 0x82222fa8 (end = 0x82223000)
 eax 0xb9          ebx 0xbc42e0       ecx 0x711be364  edx 0x61a25114
 esi 0x14          edi 0x711be3dc     ebp 0x711be3a0  esp 0x82222fdc
 eip 0x61a25114 eflags 0x3202    user esp 0x711be364
 vector: 0x63, error code: 0x0
19 82222fa8 (+   0) 61a25114   <commpage> commpage_syscall + 0x04
20 711be3a0 (+  48) 00b93615   <libroot.so> usleep + 0x2d
21 711be3d0 (+  12) 00504d98   <pprof.test> main (nearest) + 0x68
22 711be3dc (+   0) 12142290   97146:mmap area@0x1212a000 + 0x18290
23 00503f35 (+   0) 8b000000
fc0d8b64 -- read fault
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