Re: SEGFAULT with a multithread foundation(base) tools samples

[Fred Kiefer]

Thierry DELHAISE wrote:
> Since some discussions on irc #gnustep this afternoon, I will follow 
> advice of aeruder (may be it's you ? ;-) ) and will build my GNUstep 
> Foundation from source with debug symbols and will post the result of 
> the segfault :

No its not me, I haven't used IRC for about fifteen years. But what 
about the result of this great advice? It really could help.

> in gdb with the libFoundation provide by debian from package 
> libFoundation_d 1.10.1-2, it seems it segfault when the second thread 
> reach [pool release]; at the end of class method used as the selector 
> parameter of [NSThread] : connectWithPorts;

Sending the back trace to the list would be great.

> Just an idea : does the use of boem_gc (--enable-objc-gc) in the 
> standard compiler tools chain provide by debian for gcc 3.3.5 in objc 
> language could be the source of my problem ?

I never used the Böhm garbage collector with GNUstep myself, perhaps 
nobody did in recent years. It may be that we have a problem with that 
here. Could you compile GNUstep and your application without this 
setting and try again?

On the othe hand a problem with the GC does not really fit your comment 
in the previous paragraph. If autorelease is just a NOP, than an 
autorelease pool can hardly be the place where a segfault happens. Again 
a back trace could help to understand this.

Cheers
Fred