Re: NEWS on 1.6.0, crash fix... semi-fix (if you create and quickly delete a window sawfish will segfault)

[Timo Korvola <Timo Korvola iki fi>]

On Tuesday 20 October 2009 10:47:28 Janek Kozicki wrote:
> I'm returning 0, because 0 is also returned at the end of this
> function call.

0 is returned if memory allocation fails.  It is a nasty situation that 
should not happen normally: Sawfish is out of memory and therefore 
unable to manage a new window.  There is not much that can be done, so 
Sawfish just prints a warning and tries to limp on.

What bothers me is that I still don't understand how your Valgrind 
report from before this change came about.  Presumably it was from 
before-add-window-hook, which got called with a "gone" window.  
Functions should generally be able to cope with that, because windows 
may become "gone" practically at any time.  Did some function have a 
problem with that?  Unfortunately it is difficult to analyse the 
backtrace from lispmach.h.

-- 
	Timo Korvola		<URL:http://www.iki.fi/tkorvola>