On Thu Jun 25 11:50:15 GMT 2020, Ken Brown wrote:
>Can you show us a gdb backtrace of all threads when this happens? You'll need >to install gdb and coreutils-debuginfo. When date hangs, attach gdb by giving >the command > > gdb -p <PID> > >where <PID> is the pid of the hanging date process. At the gdb prompt, type >'thread apply all bt' and send the output here. Thanks Ken. The gdb output is below. I did get a symbol mismatch warning so maybe it's not as useful as it could be. I guess I need to do an update. warning: the debug information found in "/usr/lib/debug//usr/bin/cygwin1.dbg" does not match "/usr/bin/cygwin1.dll" (CRC mismatch). Thread 4 (Thread 36376.0x96e0): #0 0x00007ffa0518d450 in ntdll!DbgUiRemoteBreakin () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll #1 0x00007ffa04ef7bd4 in KERNEL32!BaseThreadInitThunk () from /cygdrive/c/WINDOWS/System32/KERNEL32.DLL #2 0x00007ffa0512ce51 in ntdll!RtlUserThreadStart () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll #3 0x0000000000000000 in ?? () Backtrace stopped: previous frame inner to this frame (corrupt stack?) Thread 3 (Thread 36376.0x5d2c): #0 0x00007ffa0515c134 in ntdll!ZwReadFile () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll #1 0x00007ffa020d5187 in ReadFile () from /cygdrive/c/WINDOWS/System32/KERNELBASE.dll #2 0x000000018013e441 in wait_sig(void*) () from /usr/bin/cygwin1.dll #3 0x0000000180047363 in cygthread::callfunc(bool) () from /usr/bin/cygwin1.dll #4 0x0000000180047926 in cygthread::stub(void*) () from /usr/bin/cygwin1.dll #5 0x0000000180048353 in _cygtls::call2(unsigned int (*)(void*, void*), void*, void*) () from /usr/bin/cygwin1.dll #6 0x0000000180048404 in _cygtls::call(unsigned int (*)(void*, void*), void*) () from /usr/bin/cygwin1.dll #7 0x00007ffa04ef7bd4 in KERNEL32!BaseThreadInitThunk () from /cygdrive/c/WINDOWS/System32/KERNEL32.DLL #8 0x00007ffa0512ce51 in ntdll!RtlUserThreadStart () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll #9 0x0000000000000000 in ?? () Backtrace stopped: previous frame inner to this frame (corrupt stack?) Thread 2 (Thread 36376.0x7ab4): #0 0x0000000180045893 in _cmalloc(unsigned int) () from /usr/bin/cygwin1.dll #1 0x000000018004649a in cstrdup () from /usr/bin/cygwin1.dll #2 0x000000018021eebe in path_conv::operator<<(path_conv const&) () from /usr/bin/cygwin1.dll #3 0x0000000180059c6c in build_fh_pc(path_conv&) () from /usr/bin/cygwin1.dll #4 0x000000018005ad9a in build_fh_dev(device const&, char const*) () from /usr/bin/cygwin1.dll #5 0x000000018008333f in fhandler_fifo::add_client_handler() () from /usr/bin/cygwin1.dll #6 0x00000001800843c4 in fhandler_fifo::listen_client_thread() () from /usr/bin/cygwin1.dll #7 0x0000000180048353 in _cygtls::call2(unsigned int (*)(void*, void*), void*, void*) () from /usr/bin/cygwin1.dll #8 0x0000000180048404 in _cygtls::call(unsigned int (*)(void*, void*), void*) () from /usr/bin/cygwin1.dll #9 0x00007ffa04ef7bd4 in KERNEL32!BaseThreadInitThunk () from /cygdrive/c/WINDOWS/System32/KERNEL32.DLL #10 0x00007ffa0512ce51 in ntdll!RtlUserThreadStart () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll #11 0x0000000000000000 in ?? () Backtrace stopped: previous frame inner to this frame (corrupt stack?) Thread 1 (Thread 36376.0x7b94): #0 0x00007ffa0515c0f4 in ntdll!ZwWaitForSingleObject () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll #1 0x00007ffa020e8b03 in WaitForSingleObjectEx () from /cygdrive/c/WINDOWS/System32/KERNELBASE.dll #2 0x000000018014aa87 in muto::acquire(unsigned int) () from /usr/bin/cygwin1.dll #3 0x00000001800457fd in _cfree () from /usr/bin/cygwin1.dll #4 0x000000018005eb5a in environ_init(char**, int) () from /usr/bin/cygwin1.dll #5 0x0000000180103443 in pinfo_init(char**, int) () from /usr/bin/cygwin1.dll #6 0x000000018004998f in dll_crt0_1(void*) () from /usr/bin/cygwin1.dll #7 0x0000000180048353 in _cygtls::call2(unsigned int (*)(void*, void*), void*, void*) () from /usr/bin/cygwin1.dll #8 0x0000000180048404 in _cygtls::call(unsigned int (*)(void*, void*), void*) () from /usr/bin/cygwin1.dll #9 0x0000000000000000 in ?? () Backtrace stopped: previous frame inner to this frame (corrupt stack?) -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
