Re: [Bug: 21.4.17] Assertion failure in redisplay-output.c

Stephen J. Turnbull wrote: > Ed> I'm having trouble persuading xemacs to make a core dump on my > Ed> Linux system, despite 'ulimit -c unlimited' and getting core > Ed> dumps from ordinary C programs that crash. > >How do you start xemacs? > > >From a shell script looking roughly like #!/bin/bash no_exit_on_failed_exec=1 exec xemacs -geometry 120x78+0+0 > Ed> To diagnose this, is there a way I can force xemacs to crash? > >Untested, but kill -SEGV $xemacs_pid should do it. > > Yes, and that does leave a coredump. It's strange that I don't get one for the assertion failure. I'll investigate some more. > Ed> M-x crash-and-dump-core? > >That's an interesting concept for a debug build, but we certainly >wouldn't implement that function in a production build. ;-) > > I think a better function for me would be M-x assertion-failure, to specifically test what happens when assert() in the C code returns false.