Hi Brain, The stack trace is for basic mutex initialization, threading itself hasn't been kicked off my osgconv.
Perhaps it'd be useful to just write a simple bit of code with an OpenThreads::Mutex that is created in a local scope to see if cywin is able to construct it OK, next up I'd try a ReentrantMutex to see if these reveals problems. Robert. On Tue, Apr 8, 2008 at 5:50 PM, Brian Keener <[EMAIL PROTECTED]> wrote: > Robert, > > The cygwin group has made a few changes in their threading I noticed > and also a couple changes to the debugger so I decided to give OSG a > try just to see if we get closer. I did a little better getter a > backtrace with a few things I picked up but still have a couple > questions. > > > Enclosed is a backtrace of the osgconvd at the point is generates a > SIGSEGV. Not sure if this is much help at this point but I was curious > if you can give me some idea what it might be using that causes the ??. > I know that probably means I am working with a stripped non debug > version of something - I'm just not sure what or how to find out. > > I am working with a debug version of the Cygwin Dll and the OSG > application and libraries and I was able to do an strace of osgconvd > running but I haven't had a chance to wade through it yet. > > Any ideas how I might carry this further. > > -- > Brian Keener > > [EMAIL PROTECTED] /usr/local/bin/osgPlugins-2.3.7 > $ gdb osgconvd > GNU gdb 6.5.50.20060706-cvs (cygwin-special) > Copyright (C) 2006 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and > you are > welcome to change it and/or distribute copies of it under certain > conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for > details. > This GDB was configured as "i686-pc-cygwin"... > (gdb) set args cow.osg brian.osg > (gdb) set cygwin-exceptions on > (gdb) run > Starting program: /usr/local/bin/osgconvd.exe cow.osg brian.osg > Loaded symbols for /cygdrive/c/WINDOWS/system32/ntdll.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/kernel32.dll > Loaded symbols for /usr/local/bin/cygosgDBd-2.3.7.dll > Loaded symbols for /usr/local/bin/cygOpenThreadsd-2.2.1.dll > Loaded symbols for /usr/bin/cygwin1.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/advapi32.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/rpcrt4.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/secur32.dll > Loaded symbols for /usr/local/bin/cygosgd-2.3.7.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/glu32.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/msvcrt.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/opengl32.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/gdi32.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/user32.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/ddraw.dll > Loaded symbols for /cygdrive/c/WINDOWS/system32/dciman32.dll > Loaded symbols for /usr/local/bin/cygosgUtild-2.3.7.dll > Loaded symbols for /usr/local/bin/cygosgViewerd-2.3.7.dll > Loaded symbols for /usr/local/bin/cygosgGAd-2.3.7.dll > Loaded symbols for /usr/local/bin/cygosgTextd-2.3.7.dll > > Program received signal SIGSEGV, Segmentation fault. > 0x610d5de9 in pthread_mutexattr_init (attr=0x23cb50) > at /usr/develop/src/src/src/winsup/cygwin/thread.cc:123 > 123 if ((*object)->magic != magic) > (gdb) thread apply all bt > > Thread 2 (thread 3936.0xe64): > #0 0x7c90eb94 in ntdll!LdrAccessResource () > from /cygdrive/c/WINDOWS/system32/ntdll.dll > #1 0x7c90e288 in ntdll!ZwReadFile () > from /cygdrive/c/WINDOWS/system32/ntdll.dll > #2 0x7c801875 in ReadFile () from > /cygdrive/c/WINDOWS/system32/kernel32.dll > #3 0x00000730 in ?? () > #4 0x00000000 in ?? () > > Thread 1 (thread 3936.0xacc): > #0 0x610d5de9 in pthread_mutexattr_init (attr=0x23cb50) > at /usr/develop/src/src/src/winsup/cygwin/thread.cc:123 > #1 0x610b2c98 in _sigfe () > at /usr/develop/src/src/src/winsup/cygwin/cygerrno.h:31 > #2 0x0023cb90 in ?? () > #3 0x00000004 in ?? () > #4 0x00000001 in ?? () > #5 0x00000028 in ?? () > #6 0x0023cbb8 in ?? () > #7 0x00ade1af in OpenThreads::ReentrantMutex::ReentrantMutex > (this=0xc25ab0) > at /usr/src/OpenSceneGraph/include/OpenThreads/ReentrantMutex:29 > #8 0x00ade1af in OpenThreads::ReentrantMutex::ReentrantMutex > (this=0xc25ab0) > at /usr/src/OpenSceneGraph/include/OpenThreads/ReentrantMutex:29 > ---Type <return> to continue, or q <return> to quit--- > #9 0x00a474e7 in __static_initialization_and_destruction_0 ( > __initialize_p=1, __priority=65535) > at /usr/src/OpenSceneGraph/src/osg/GraphicsContext.cpp:188 > #10 0x00a475ee in global constructors keyed to > _ZN3osg15GraphicsContext27setWind > owingSystemInterfaceEPNS0_24WindowingSystemInterfaceE () > at /usr/src/OpenSceneGraph/src/osg/GraphicsContext.cpp:290 > #11 0x61020493 in per_module::run_ctors (this=0x0) > at /usr/develop/src/src/src/winsup/cygwin/dll_init.cc:54 > #12 0x00000001 in ?? () > #13 0x610204e0 in dll::init (this=0x610208bc) > at /usr/develop/src/src/src/winsup/cygwin/dll_init.cc:80 > #14 0x08840008 in ?? () > #15 0x00000000 in ?? () > (gdb) > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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