[Tutor] segmentation fault

[Emile van Sebille]

On 7/12/2009 9:09 AM Rick Pasotto said...
> I've got a script that I wrote several years ago and have been happily
> using daily. Suddenly when I try to run it I get a segmentation fault.
> 
> I'm running debian testing so probably some recent update caused the
> breakage. How can I find out what's gone wrong?
> 

If you're certain it's not otherwise environmental (out of space, bad 
memory or disk, packet flooding on network, etc), I'd try rolling back 
recent changes if that's convenient.  Sometimes an strace on the process 
leads me in the right direction.  If neither get you started, I'd try 
littering print statements through the code the track progress and try 
to narrow down where in the code it's happening.  I've sometimes 
stumbled over a specific line causing the problem, and can eliminate the 
problem by refactoring.  Be sure to report what you find upstream.

There are probably other ways to isolate the problem depending on your 
focus.  Maybe someone will point you in those directions.

Of course, this is not entirely unexpected when you're running testing. 
  It could resolve itself on its own.

Emile