moar.exe(5840) with MVM_JIT_DISABLE=1

(gdb) attach 5840
Attaching to process 5840
[New Thread 5840.0xc18]
[New Thread 5840.0x1848]
[New Thread 5840.0x18ac]
[New Thread 5840.0xf10]
[New Thread 5840.0x19e8]
Reading symbols from C:\rakudo\bin\moar.exe...done.
0x00000000777ab1d1 in ntdll!DbgBreakPoint () from C:\Windows\SYSTEM32\ntdll.dll
(gdb) thread apply all bt

Thread 5 (Thread 5840.0x19e8):
#0  0x00000000777ab1d1 in ntdll!DbgBreakPoint () from C:\Windows\SYSTEM32\ntdll.dll
#1  0x00000000778393c8 in ntdll!DbgUiRemoteBreakin () from C:\Windows\SYSTEM32\ntdll.dll
#2  0x00000000776359cd in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
#3  0x000000007779385d in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
#4  0x0000000000000000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 4 (Thread 5840.0xf10):
#0  0x00000000777ab18a in ntdll!ZwWaitForWorkViaWorkerFactory () from C:\Windows\SYSTEM32\ntdll.dll
#1  0x00000000778396e4 in ntdll!DbgUiRemoteBreakin () from C:\Windows\SYSTEM32\ntdll.dll
#2  0x00000000776359cd in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
#3  0x000000007779385d in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
#4  0x0000000000000000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 3 (Thread 5840.0x18ac):
#0  0x00000000777a9aaa in ntdll!ZwRequestWaitReplyPort () from C:\Windows\SYSTEM32\ntdll.dll
#1  0x00000000776418e8 in KERNEL32!GetConsoleMode () from C:\Windows\system32\kernel32.dll
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 5840.0x1848):
#0  0x00000000777ab17a in ntdll!ZwWaitForKeyedEvent () from C:\Windows\SYSTEM32\ntdll.dll
#1  0x00000000778000a4 in ntdll!RtlSleepConditionVariableCS () from C:\Windows\SYSTEM32\ntdll.dll
#2  0x000000007766b6f8 in SleepConditionVariableCS () from C:\Windows\system32\kernel32.dll
#3  0x0000000069d30f90 in uv_cond_wait () from C:\rakudo\bin\moar.dll
#4  0x0000000069c49733 in shift () from C:\rakudo\bin\moar.dll
#5  0x0000000069c240fb in MVM_repr_shift_o () from C:\rakudo\bin\moar.dll
#6  0x0000000069c80b5b in worker () from C:\rakudo\bin\moar.dll
#7  0x0000000069bef065 in thread_initial_invoke () from C:\rakudo\bin\moar.dll
#8  0x0000000069bc928f in MVM_interp_run () from C:\rakudo\bin\moar.dll
#9  0x0000000069bef0ea in start_thread () from C:\rakudo\bin\moar.dll
#10 0x0000000069d3079d in uv.thread_start () from C:\rakudo\bin\moar.dll
#11 0x000007feff74415f in srand () from C:\Windows\system32\msvcrt.dll
#12 0x000007feff746ebd in msvcrt!_ftime64_s () from C:\Windows\system32\msvcrt.dll
#13 0x00000000776359cd in KERNEL32!BaseThreadInitThunk () from C:\Windows\system32\kernel32.dll
#14 0x000000007779385d in ntdll!RtlUserThreadStart () from C:\Windows\SYSTEM32\ntdll.dll
#15 0x0000000000000000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 5840.0xc18):
#0  0x00000000777a9aaa in ntdll!ZwRequestWaitReplyPort () from C:\Windows\SYSTEM32\ntdll.dll
#1  0x00000000776418e8 in KERNEL32!GetConsoleMode () from C:\Windows\system32\kernel32.dll
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb)