Electric Fence - still reliable?
Bastien Nocera
bnocera at redhat.com
Fri Dec 18 11:18:30 UTC 2009
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 at 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 at 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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