qemu_main: Call (looper must be locked before proceeding)

[diversys]

Crash happened on close.

Debug information for team /boot/system/bin/x86/qemu-system-i386 (2341):
CPU(s): 1x Intel Core™ i7-3635QM
Memory: 1.48 GiB total, 265.59 MiB used
Haiku revision: hrev47935 Sep 30 2014 13:42:29 (BePC)

Active Threads:
thread 2345: pthread func
thread 2346: pthread func
thread 2349: team 2341 debug task
thread 2341: qemu-system-i386 (main)
state: Debugged

    Frame       IP          Function Name
    -----------------------------------------------
    00000000    0x606a7112  commpage_syscall + 0x2 
        Disassembly:
            commpage_syscall:
            0x606a7110:             89e1  mov %esp, %ecx
            0x606a7112:             0f34  sysenter  <--

        Frame memory:

    0x71cb7988  0x287cdbe   /boot/system/lib/x86/libroot.so + 0x94dbe 
    0x71cb79b8  0x1f4a11a   /boot/system/bin/x86/qemu-system-i386 + 0x14f11a 
    0x71cb79f8  0x1dae912   runtime_loader + 0x132 
    00000000    0x606a7250  commpage_thread_exit + 0 

    Registers:
          eip:  0x606a7114
          esp:  0x71cb796c
          ebp:  0x71cb7988
          eax:  0x00000024
          ebx:  0x028c2744
          ecx:  0x71cb796c
          edx:  0x606a7114
          esi:  0x71cb853c
          edi:  0x71cb8544
           cs:  0x001b
           ds:  0x0023
           es:  0x0023
           fs:  0x0063
           gs:  0x0023
           ss:  0x0023
thread 2344: qemu_main 
    state: Call (looper must be locked before proceeding)

    Frame       IP          Function Name
    -----------------------------------------------
    00000000    0x606a7112  commpage_syscall + 0x2 
        Disassembly:
            commpage_syscall:
            0x606a7110:             89e1  mov %esp, %ecx
            0x606a7112:             0f34  sysenter  <--

        Frame memory:

    0x7a458058  0x280ebc1   debugger + 0x31 
    0x7a458090  0x2c5d86f   BLooper::AssertLocked() const + 0x2f 
    0x7a4580b0  0x2c5dc67   BLooper::Unlock() + 0x17 
    0x7a4580d0  0x2c59dc9   BHandler::UnlockLooper() + 0x19 
    0x7a458140  0x2174304   QEMUView::Update(BPoint, int, int) + 0xc4 
    0x7a458178  0x217436e   /boot/system/bin/x86/qemu-system-i386 + 0x37936e 
    0x7a4581d8  0x216e083   dpy_gfx_update + 0xe3 
    0x7a4582a8  0x1fa28fe   /boot/system/bin/x86/qemu-system-i386 + 0x1a78fe 
    0x7a4582f8  0x216ca4f   /boot/system/bin/x86/qemu-system-i386 + 0x371a4f 
    0x7a458348  0x219ade2   timerlist_run_timers + 0xc2 
    0x7a458378  0x219b033   qemu_clock_run_all_timers + 0x23 
    0x7a4583c8  0x219987c   main_loop_wait + 0x20c 
    0x7a4585a8  0x20435ce   qemu_main + 0x40de 
    0x7a4585e0  0x2172dc4   QEMUApplication::RunQEMUMain(void*) + 0x34 
    0x7a458608  0x2814db9   thread_entry + 0x19 
    00000000    0x606a7250  commpage_thread_exit + 0