Hi John.. On Tue, Dec 20, 2011 at 16:31, solmac john <johnsolmac@xxxxxxxxx> wrote: > Dear All, > > > As we know, generally, we run bt command in gdb, gdb show the seg fault > location in last backtrace. > > I found one strange behaviour If i run bt command in gdb, at that itme, gdb > didn’t show the segment fault location in backtrace by default. > > Can some one tell the reason > and is this expected in SMP Looking at your registers names, looks like the processor is not Intel's, right? But anyway, looking further at your backtrace, which (seems?) ended in malloc consolidation, I smell one suspect...double free().... So, may I ask, do you inaccidentally did that? Quite likely in such condition, stack frame is also corrupted, so you will find less valuable...or even worst, no valid information there. -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies