Now I know for sure that the child crashes (SIGSEGV) before fork() returns. I could see it in the UML debugger. It does not use the signal handler I have set up of the SIGSEGV. It simply crashes and exits. Could this be any kernel problem ? > > > Hi all, > I am experiencing a problem, where fork() returns succesfully > on parent, but does not return on child. The child process > simply "disappears". I believe it might have got a SIGSEGV > (if it makes any sence) before fork() has returned. > > I would like to track down this problem. > What I did so far is: > 1. I tried first to make sure there are no memory overruns > using few tools. 2. I tried to look at strace output, but the > problem does not occur if I use strace 3. I made a > UserModeLinux machine and now I would like to breakpoint the > created child before it crashes (assuming it really crashes) > > How do I do that ? > > Thanks, > Nir > > -- > Kernelnewbies: Help each other learn about the Linux kernel. > Archive: http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
