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Re: X server crash when running texworks
- From: Jon TURNEY <jon dot turney at dronecode dot org dot uk>
- To: cygwin-xfree at cygwin dot com
- Date: Sun, 01 Apr 2012 14:40:44 +0100
- Subject: Re: X server crash when running texworks
- References: <4F6E24CA.2000701@cornell.edu> <4F70C7BE.1070402@cornell.edu> <4F70CC57.6080607@dronecode.org.uk> <4F70D272.2040506@cornell.edu> <4F72F30A.4020401@dronecode.org.uk> <4F7303E1.107@cornell.edu> <4F7307B0.90400@cornell.edu> <4F745236.50809@dronecode.org.uk> <4F74BF22.3020109@cornell.edu> <4F759ABF.1090007@dronecode.org.uk> <4F76DC6B.6070704@dronecode.org.uk>
- Reply-to: cygwin-xfree at cygwin dot com
On 31/03/2012 11:28, Jon TURNEY wrote:
> On 30/03/2012 12:36, Jon TURNEY wrote:
>> For me, the problem of texworks hanging only occurs very intermittently. It
>> seems to be blocked deep in QtCore, waiting for the spawned process to
>> terminate (which has already happened).
>
> Attaching to the texworks process, I get a backtrace like this:
>
> (gdb) bt
> #0 0x7c90e514 in ntdll!LdrAccessResource () from
> /cygdrive/c/WINDOWS/system32/ntdll.dll
> #1 0x7c90df4a in ntdll!ZwWaitForMultipleObjects () from
> /cygdrive/c/WINDOWS/system32/ntdll.dll
> #2 0x7c809590 in KERNEL32!CreateFileMappingA () from
> /cygdrive/c/WINDOWS/system32/kernel32.dll
> #3 0x7c80a115 in WaitForMultipleObjects () from
> /cygdrive/c/WINDOWS/system32/kernel32.dll
> #4 0x610ce614 in select_stuff::wait(_types_fd_set*, _types_fd_set*,
> _types_fd_set*, unsigned long) ()
> from /usr/bin/cygwin1.dll
> #5 0x610cf02b in cygwin_select () from /usr/bin/cygwin1.dll
> #6 0x610d33d5 in _sigfe () from /usr/bin/cygwin1.dll
> #7 0x0022b87c in ?? ()
> #8 0x6d445820 in cygQtCore-4!_ZN15QProcessManager11qt_metacastEPKc () from
> /usr/bin/cygQtCore-4.dll
> #9 0x6d446e97 in cygQtCore-4!_ZN15QProcessPrivate15waitForFinishedEi () from
> /usr/bin/cygQtCore-4.dll
> #10 0x6d40fb85 in cygQtCore-4!_ZN8QProcess15waitForFinishedEi () from
> /usr/bin/cygQtCore-4.dll
> #11 0x6d41286c in cygQtCore-4!_ZN8QProcess7executeERK7QStringRK11QStringList
> () from /usr/bin/cygQtCore-4.dll
>> I'm not sure how the X server changes could directly cause that to happen.
I can reproduce that same problem with the same backtrace with X server
1.11.4-5, so I don't think this can be called a regression in 1.12.0-1.
--
Jon TURNEY
Volunteer Cygwin/X X Server maintainer
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