Are you sure you have only one libgnustep-base on the system? I'm also not sure you get useful lines without -O0 -g3. To see if -g3 is used: make messages=yes
OTOH, I think make debug=yes will make debugging possible. You'll probably want to rebuild at least -base completely. (I'm not sure if -O0 and -g3 need to come from gnustep-make.) FWIW, I don't see GSPerformHolder implementation inside NSThread.m at all. http://svn.gna.org/svn/gnustep/libs/base/trunk/Source/NSThread.m On Thu, Oct 23, 2014 at 6:11 PM, Andreas Höschler <[email protected]> wrote: > Hi all, > > I have a multi-threaded tool that quite often stops working (continues to > run but does nothing anymore). When I back trace the beast with gdb I get > > #0 0xfdd78aab in __lwp_park () from /lib/libc.so.1 > #1 0xfdd718f3 in mutex_lock_queue () from /lib/libc.so.1 > #2 0xfdd7225c in mutex_lock_impl () from /lib/libc.so.1 > #3 0xfdd72335 in pthread_mutex_lock () from /lib/libc.so.1 > #4 0xfe68f36a in __objc_mutex_lock (mutex=0x4d) at ../gcc/gthr-posix.h:95 > #5 0xfe68ea23 in objc_mutex_lock (mutex=0x822b208) at > /usr/share/src/gcc-3.4.4/libobjc/thr.c:326 > #6 0xfdf4d3b8 in -[NSLock lock] (self=0x822b228, _cmd=0xfe1edcc0) at > NSLock.m:241 > #7 0xfdfba858 in +[GSPerformHolder receivedEvent:type:extra:forMode:] > (self=0xfe1ed940, _cmd=0xfe2029a0, > data=0x5, type=ET_RDESC, extra=0x5, mode=0xfe1e8ae8) at NSThread.m:918 > #8 0xfe031317 in -[GSRunLoopCtxt pollUntil:within:] (self=0x82173d8, > _cmd=0xfe1e8a30, milliseconds=25, > contexts=0x81c2e38) at GSRunLoopCtxt.m:585 > #9 0xfdf92567 in -[NSRunLoop acceptInputForMode:beforeDate:] > (self=0x81c2e88, _cmd=0xfe1e8a58, > mode=0xfe1e8ae8, limit_date=0x8807fd8) at NSRunLoop.m:969 > > However, the line numbers make no sense. There is no lock call at > NSThread.m:918. > I made > > cd /usr/src/core/base > make > > but nothing was newly built. What the hack ... Does the above backtrace > ring any bells? I am clueless! :-( > > Thanks a lot, > > Andreas > > > _______________________________________________ > Discuss-gnustep mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnustep > > -- Ivan Vučica [email protected]
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