#0  0x7704013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation ()
   from C:\Windows\SysWOW64\ntdll.dll
(gdb) thread apply all bt

Thread 11 (process 1):
#0  0x7704013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation ()
   from C:\Windows\SysWOW64\ntdll.dll
#1  0x7704013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation ()
   from C:\Windows\SysWOW64\ntdll.dll
#2  0x75330bdd in WaitForMultipleObjectsEx ()
   from C:\Windows\syswow64\KERNELBASE.dll
#3  0x00000004 in ?? ()
#4  0x0028a7a8 in ?? ()
#5  0x74f11a2c in KERNEL32!GetVolumePathNamesForVolumeNameA ()
   from C:\Windows\syswow64\kernel32.dll
#6  0x0028a7a8 in ?? ()
#7  0x74f14208 in KERNEL32!CheckForReadOnlyResource ()
   from C:\Windows\syswow64\kernel32.dll
#8  0x00000004 in ?? ()
#9  0x7efde000 in ?? ()
#10 0x610fa507 in cancelable_wait(void*, _LARGE_INTEGER*, cw_cancel_action, cw_sig_wait) () from C:\cygwin\bin\cygwin1.dll
#11 0x610fc2be in pthread_cond::wait(pthread_mutex*, _LARGE_INTEGER*) ()
   from C:\cygwin\bin\cygwin1.dll
#12 0x610fff40 in pthread_cond_timedwait () from C:\cygwin\bin\cygwin1.dll
#13 0x610d4b05 in _sigfe () from C:\cygwin\bin\cygwin1.dll
#14 0x0028ab50 in ?? ()
#15 0x6680bb5e in Processes::BeginRootThread(PolyObject*) ()
   from C:\cygwin\home\Makarius\tmp\isadist\polyml-5.4.1\x86-cygwin\cygpolyml-3.dll
#16 0x668013a7 in polymain ()
   from C:\cygwin\home\Makarius\tmp\isadist\polyml-5.4.1\x86-cygwin\cygpolyml-3.dll
#17 0x004010c3 in main ()

Thread 1 (Thread 0x1):
#0  0x7704013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation ()
   from C:\Windows\SysWOW64\ntdll.dll
#1  0x7704013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation ()
   from C:\Windows\SysWOW64\ntdll.dll
#2  0x75330bdd in WaitForMultipleObjectsEx ()
   from C:\Windows\syswow64\KERNELBASE.dll
#3  0x00000004 in ?? ()
#4  0x0028a7a8 in ?? ()
#5  0x74f11a2c in KERNEL32!GetVolumePathNamesForVolumeNameA ()
   from C:\Windows\syswow64\kernel32.dll
#6  0x0028a7a8 in ?? ()
#7  0x74f14208 in KERNEL32!CheckForReadOnlyResource ()
   from C:\Windows\syswow64\kernel32.dll
#8  0x00000004 in ?? ()
#9  0x7efde000 in ?? ()
#10 0x610fa507 in cancelable_wait(void*, _LARGE_INTEGER*, cw_cancel_action, cw_s---Type <return> to continue, or q <return> to quit---
ig_wait) () from C:\cygwin\bin\cygwin1.dll
#11 0x610fc2be in pthread_cond::wait(pthread_mutex*, _LARGE_INTEGER*) ()
   from C:\cygwin\bin\cygwin1.dll
#12 0x610fff40 in pthread_cond_timedwait () from C:\cygwin\bin\cygwin1.dll
#13 0x610d4b05 in _sigfe () from C:\cygwin\bin\cygwin1.dll
#14 0x0028ab50 in ?? ()
#15 0x6680bb5e in Processes::BeginRootThread(PolyObject*) ()
   from C:\cygwin\home\Makarius\tmp\isadist\polyml-5.4.1\x86-cygwin\cygpolyml-3.dll
#16 0x668013a7 in polymain ()
   from C:\cygwin\home\Makarius\tmp\isadist\polyml-5.4.1\x86-cygwin\cygpolyml-3.dll
#17 0x004010c3 in main ()