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Re: Electric Fence - still reliable?



On Fri, 2009-12-18 at 11:55 +0100, Michael Schwendt wrote:
> On Thu, 17 Dec 2009 22:07:04 +0100, I wrote:
> 
> > Fedora 12 with LD_PRELOAD=libefence.so.0.0 EF_ALLOW_MALLOC_0=1, what is
> > more likely that these are false positives or real bugs?
> 
> It's hard to find GNOME/GTK apps that don't crash. One that works fine
> in efence is "gnome-about".
> 
> Many non-GUI tools also pass. procps's w doesn't, and that's not a false
> positive:
> 
> $ w
> 
>   Electric Fence 2.2.2 Copyright (C) 1987-1999 Bruce Perens <bruce perens com>
> Segmentation fault (core dumped)
> 
>   ==> setlocale() usage bug, https://bugzilla.redhat.com/548711
> 
> 
> $ eog
> 
>   Electric Fence 2.2.2 Copyright (C) 1987-1999 Bruce Perens <bruce perens com>
> Segmentation fault (core dumped)
> 
>   ==> in ORBit corba-any.c  once more

All the GNOME apps that use GConf or ORBit will fail because you need to
set the alignment to 8. Same problem under valgrind.


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