My bad. I was accessing message data associated with an su_msg_r object after that memory had been automatically reclaimed by the system. I fixed that and all good now. Thanks again for the help, Aleksander.
Dave On Jan 8, 2010, at 6:04 AM, Aleksander Morgado wrote: > Hi Dave, > > Per an earlier thread, I am building a very simple multithreaded UAS redirect > server. (Note: in my earlier thread I was running it in stateless mode, but > now I am running in stateful mode). > > > :-) > > The simple scenario is an INVITE that gets handed to a different worker > thread, a short time later the main thread crashes when trying to send a 100 > Trying due to a timer expiring in the stack. > > It looks like this: > > 1. Main thread creates root, run event loop, gets incoming INVITE > 2. Main thread sends su_msg_r to clone task (in separate thread) to look up a > contact for this request > 3. Main thread returns 0 from the sip request callback > 4. Short time later, N1 timer goes off and stack attempts to generate a 100 > Trying (I have deliberately put a sleep in my clone task temporarily to make > this happen) > 5. Library crashes in freeaddrinfo > > > Pretty strange. I actually do more or less the same. > > Crashes in free() usually show a previous problem regarding heap memory > corruption. > > I would run your program with valgrind memcheck tool and see if there are any > invalid writes reported in your code. That is usually the fastest way to see > where the heap was corrupted. You could also use electric fence also, which > will force a segfault as soon as any invalid write in heap happens. > > Cheers, > -Aleksander > > ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Sofia-sip-devel mailing list Sofia-sip-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sofia-sip-devel
