bug#17753: Cygwin emacs-X11 core dump

[Markus Hoenicka]

At 2014-10-11 17:31, Ken Brown was heard to say:
> Markus,
>
> The suggestion has come up in a different bug report
> (http://debbugs.gnu.org/cgi/bugreport.cgi?bug=18438#160) that emacs
> might need a larger stack.  Please issue the following command (as
> administrator, while emacs is not running) and see if the crashes
> stop:
>
>   peflags -x0x800000 /usr/bin/emacs-X11.exe
>
> Thanks.
>
> Ken

no joy, unfortunately. I did as advised, but it barely took one hour 
back in office when Emacs crashed again. This time there is no useful 
information from the thread which apparently caused the crash. Could 
that be a consequence of the new stack size? Would it make sense to 
revert? If so, how?

regards,
Markus

$ gdb /usr/bin/emacs-X11
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Reading symbols from /usr/bin/emacs-X11...Reading symbols from 
/usr/lib/debug//usr/bin/emacs-X11.exe.dbg...done.
done.
(gdb) run
Starting program: /usr/bin/emacs-X11
[New Thread 1256.0x6e8]
[New Thread 1256.0xf98]
[New Thread 1256.0xfb0]
[New Thread 1256.0xed0]
[New Thread 1256.0xfa8]
[New Thread 1256.0xf14]
[New Thread 1256.0x304]
[New Thread 1256.0xdf8]
[New Thread 1256.0xea0]
[New Thread 1256.0xfb8]
[New Thread 1256.0x1140]
[Thread 1256.0xfb8 exited with code 0]
[Thread 1256.0x1140 exited with code 0]
[Thread 1256.0x304 exited with code 0]

Program received signal SIGABRT, Aborted.
0x000000000082e2a8 in ?? ()
(gdb) info threads
  Id   Target Id         Frame
  9    Thread 1256.0xea0 0x00000000774b12fa in 
ntdll!ZwWaitForSingleObject ()
   from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
  8    Thread 1256.0xdf8 0x00000000774b12fa in 
ntdll!ZwWaitForSingleObject ()
   from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
  6    Thread 1256.0xf14 0x00000000774b12fa in 
ntdll!ZwWaitForSingleObject ()
   from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
  5    Thread 1256.0xfa8 0x00000000774b15fa in ntdll!ZwDelayExecution ()
   from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
  4    Thread 1256.0xed0 0x00000000774b186a in 
ntdll!ZwWaitForMultipleObjects
    () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
  3    Thread 1256.0xfb0 0x00000000774b186a in 
ntdll!ZwWaitForMultipleObjects
    () from /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
  2    Thread 1256.0xf98 0x000007fefd62940d in RaiseException ()
   from /cygdrive/c/WINDOWS/system32/KERNELBASE.dll
* 1    Thread 1256.0x6e8 0x000000000082e2a8 in ?? ()
(gdb) thread apply all bt

Thread 9 (Thread 1256.0xea0):
#0  0x00000000774b12fa in ntdll!ZwWaitForSingleObject ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#1  0x000007fefd6210dc in WaitForSingleObjectEx ()
    at /cygdrive/c/WINDOWS/system32/KERNELBASE.dll
#2  0x0000000180045561 in cygthread::stub(void*) 
(arg=arg@entry=0x1801d0500 <threads+352>) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygthread.cc:114
#3  0x000000018004619b in _cygtls::call2(unsigned int (*)(void*, void*), 
void*, void*) (this=0x620ce00, func=
    0x1800454d0 <cygthread::stub(void*)>, arg=0x1801d0500 <threads+352>, 
buf=buf@entry=0x620cd50) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygtls.cc:100
#4  0x00000001800462f4 in _cygtls::call(unsigned int (*)(void*, void*), 
void*) (func=<optimized out>, arg=<optimized out>)
    at /usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygtls.cc:30
#5  0x00000000772559ed in KERNEL32!BaseThreadInitThunk ()
    at /cygdrive/c/WINDOWS/system32/kernel32.dll
#6  0x000000007748c541 in ntdll!RtlUserThreadStart ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#7  0x0000000000000000 in  ()

Thread 8 (Thread 1256.0xdf8):
#0  0x00000000774b12fa in ntdll!ZwWaitForSingleObject ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#1  0x000007fefd6210dc in WaitForSingleObjectEx ()
    at /cygdrive/c/WINDOWS/system32/KERNELBASE.dll
#2  0x0000000180045561 in cygthread::stub(void*) 
(arg=arg@entry=0x1801d04a8 <threads+264>) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygthread.cc:114
#3  0x000000018004619b in _cygtls::call2(unsigned int (*)(void*, void*), 
void*, void*) (this=0x5a0ce00, func=
    0x1800454d0 <cygthread::stub(void*)>, arg=0x1801d04a8 <threads+264>, 
buf=buf@entry=0x5a0cd50) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygtls.cc:100
#4  0x00000001800462f4 in _cygtls::call(unsigned int (*)(void*, void*), 
void*) (func=<optimized out>, arg=<optimized out>)
    at /usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygtls.cc:30
#5  0x00000000772559ed in KERNEL32!BaseThreadInitThunk ()
    at /cygdrive/c/WINDOWS/system32/kernel32.dll
#6  0x000000007748c541 in ntdll!RtlUserThreadStart ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#7  0x0000000000000000 in  ()

Thread 6 (Thread 1256.0xf14):
#0  0x00000000774b12fa in ntdll!ZwWaitForSingleObject ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#1  0x000007fefd6210dc in WaitForSingleObjectEx ()
    at /cygdrive/c/WINDOWS/system32/KERNELBASE.dll
#2  0x0000000180045561 in cygthread::stub(void*) 
(arg=arg@entry=0x1801d03f8 <threads+88>) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygthread.cc:114
#3  0x000000018004619b in _cygtls::call2(unsigned int (*)(void*, void*), 
void*, void*) (this=0x420ce00, func=
    0x1800454d0 <cygthread::stub(void*)>, arg=0x1801d03f8 <threads+88>, 
buf=buf@entry=0x420cd50) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygtls.cc:100
#4  0x00000001800462f4 in _cygtls::call(unsigned int (*)(void*, void*), 
void*) (func=<optimized out>, arg=<optimized out>)
    at /usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygtls.cc:30
#5  0x00000000772559ed in KERNEL32!BaseThreadInitThunk ()
    at /cygdrive/c/WINDOWS/system32/kernel32.dll
#6  0x000000007748c541 in ntdll!RtlUserThreadStart ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#7  0x0000000000000000 in  ()

Thread 5 (Thread 1256.0xfa8):
#0  0x00000000774b15fa in ntdll!ZwDelayExecution ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#1  0x000007fefd621203 in SleepEx ()
    at /cygdrive/c/WINDOWS/system32/KERNELBASE.dll
#2  0x000000018010d970 in thread_pipe(void*) (arg=0x60005dea0)
    at /usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/select.cc:690
#3  0x0000000180044fc5 in cygthread::callfunc(bool) 
(this=this@entry=0x1801d0450
 <threads+176>, issimplestub=issimplestub@entry=false)
    at /usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygthread.cc:51
#4  0x000000018004552a in cygthread::stub(void*) 
(arg=arg@entry=0x1801d0450 <threads+176>) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygthread.cc:93
#5  0x000000018004619b in _cygtls::call2(unsigned int (*)(void*, void*), 
void*, void*) (this=0x4a0ce00, func=
    0x1800454d0 <cygthread::stub(void*)>, arg=0x1801d0450 <threads+176>, 
buf=buf@entry=0x4a0cd50) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygtls.cc:100
#6  0x00000001800462f4 in _cygtls::call(unsigned int (*)(void*, void*), 
void*) (func=<optimized out>, arg=<optimized out>)
    at /usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygtls.cc:30
#7  0x00000000772559ed in KERNEL32!BaseThreadInitThunk ()
    at /cygdrive/c/WINDOWS/system32/kernel32.dll
#8  0x000000007748c541 in ntdll!RtlUserThreadStart ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#9  0x0000000000000000 in  ()

Thread 4 (Thread 1256.0xed0):
#0  0x00000000774b186a in ntdll!ZwWaitForMultipleObjects ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#1  0x000007fefd621430 in KERNELBASE!GetCurrentProcess ()
    at /cygdrive/c/WINDOWS/system32/KERNELBASE.dll
#2  0x0000000000000000 in  ()

Thread 3 (Thread 1256.0xfb0):
#0  0x00000000774b186a in ntdll!ZwWaitForMultipleObjects ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#1  0x000000007747b037 in ntdll!TpIsTimerSet ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#2  0x00000000772559ed in KERNEL32!BaseThreadInitThunk ()
    at /cygdrive/c/WINDOWS/system32/kernel32.dll
#3  0x000000007748c541 in ntdll!RtlUserThreadStart ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#4  0x0000000000000000 in  ()

Thread 2 (Thread 1256.0xf98):
#0  0x000007fefd62940d in RaiseException ()
    at /cygdrive/c/WINDOWS/system32/KERNELBASE.dll
#1  0x000007fefd63aa0d in OutputDebugStringA ()
    at /cygdrive/c/WINDOWS/system32/KERNELBASE.dll
#2  0x000000018007119e in _cygtls::signal_debugger(siginfo_t&) 
(this=this@entry=0x82ce00, si=...)
    at /usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/exceptions.cc:1505
#3  0x000000018007132e in sigpacket::process() 
(this=this@entry=0x1801e3260 <sigq+1056>) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/exceptions.cc:1364
#4  0x0000000180119952 in wait_sig(void*) ()
    at /usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/sigproc.cc:1320
#5  0x0000000180044fc5 in cygthread::callfunc(bool) 
(this=this@entry=0x1801d03a0 <threads>, 
issimplestub=issimplestub@entry=false)
    at /usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygthread.cc:51
#6  0x000000018004552a in cygthread::stub(void*) 
(arg=arg@entry=0x1801d03a0 <threads>) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygthread.cc:93
#7  0x000000018004619b in _cygtls::call2(unsigned int (*)(void*, void*), 
void*, void*) (this=0x2a1ce00, func=
    0x1800454d0 <cygthread::stub(void*)>, arg=0x1801d03a0 <threads>, 
buf=buf@entry=0x2a1cd50) at 
/usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygtls.cc:100
#8  0x00000001800462f4 in _cygtls::call(unsigned int (*)(void*, void*), 
void*) (func=<optimized out>, arg=<optimized out>)
    at /usr/src/debug/cygwin-1.7.32-1/winsup/cygwin/cygtls.cc:30
#9  0x00000000772559ed in KERNEL32!BaseThreadInitThunk ()
    at /cygdrive/c/WINDOWS/system32/kernel32.dll
#10 0x000000007748c541 in ntdll!RtlUserThreadStart ()
    at /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
#11 0x0000000000000000 in  ()

Thread 1 (Thread 1256.0x6e8):
#0  0x000000000082e2a8 in  ()

--
Markus Hoenicka
http://www.mhoenicka.de
AQ score 38