At 10:12 PM -0400 2003/09/27, Derrick J Brashear wrote: > after you're attached, say "where" and see what the back trace it gives > you says. Okay, doing this, I get: (gdb) where #0 0x90034788 in semaphore_wait_trap () #1 0x90009c78 in pthread_mutex_lock () #2 0x97df4244 in -[NSLock lock] () #3 0x0001df28 in ?? () #4 0x97df4dd8 in __NSFireTimer () #5 0x90163230 in __CFRunLoopDoTimer () #6 0x90148d28 in __CFRunLoopRun () #7 0x90180f58 in CFRunLoopRunSpecific () #8 0x969a3b70 in RunCurrentEventLoopInMode () #9 0x969b3a78 in ReceiveNextEventCommon () #10 0x969dabbc in BlockUntilNextEventMatchingListInMode () #11 0x9308dedc in _DPSNextEvent () #12 0x930a0158 in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] () #13 0x930b1d88 in -[NSApplication run] () #14 0x9315fc58 in NSApplicationMain () #15 0x00002e78 in ?? () #16 0x00002cec in ?? () > some versions of gdb support the > generate-core-file > command, which you might try. Doesn't seem to work on my machine: (gdb) generate-core-file Undefined command: "generate-core-file". Try "help". (gdb) help List of classes of commands: aliases -- Aliases of other commands breakpoints -- Making program stop at certain points data -- Examining data files -- Specifying and examining files internals -- Maintenance commands obscure -- Obscure features running -- Running the program stack -- Examining the stack status -- Status inquiries support -- Support facilities tracepoints -- Tracing of program execution without stopping the program user-defined -- User-defined commands Type "help" followed by a class name for a list of commands in that class. Type "help" followed by command name for full documentation. Command name abbreviations are allowed if unambiguous. I'm still trying to figure out how to generate a core dump from this version of gdb. -- Brad Knowles, <brad.knowles@xxxxxxxxx> "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." -Benjamin Franklin, Historical Review of Pennsylvania. GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E-(---) W+++(--) N+ !w--- O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++) tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)