Re: GNUstep Code Freeze

[Riccardo Mottola]

Hi,

I can reproduce it too, the same way (previously I got other crashes, 
but they are fixed now). I recompiled all of core. I did not reinstall 
the themes, but Neos and Sleek are thematic only themes, they contain no 
code.

I open the theme panel and select a theme. I will get a crash. To me it 
looks like a buffer overrun when creating the signature or something 
like that.

Riccardo

On linux x86-32/gcc 4.6.2 I get:


unknown type eos. The next step in theming, but with a strong root in 
NeXT.Abnai

Program received signal SIGABRT, Aborted.


#0  0xb7fe2424 in __kernel_vsyscall ()
#1  0xb7546941 in *__GI_raise (sig=6)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2  0xb7549d72 in *__GI_abort () at abort.c:92
#3  0xb76c9594 in _objc_abort () from /usr/lib/i386-linux-gnu/libobjc.so.3
#4  0xb76c82b0 in objc_skip_typespec ()
   from /usr/lib/i386-linux-gnu/libobjc.so.3
#5  0xb7890bd3 in -[NSMethodSignature _initWithObjCTypes:] (self=0x8129ff4,
    _cmd=0xb7b1a3d8,
    t=0x83060b8 "Neos. The next step in theming, but with a strong root 
in NeXT.Abnai\031") at NSMethodSignature.m:414
#6  0xb7890aec in +[NSMethodSignature signatureWithObjCTypes:] (
    self=0xb7b1a460, _cmd=0xb7b58c80,
    t=0x83060b8 "Neos. The next step in theming, but with a strong root 
in NeXT.Abnai\031") at NSMethodSignature.m:456
#7  0xb7966e57 in gs_objc_msg_forward2 (receiver=0xb7f91c20, sel=0x82cb094)
    at GSFFIInvocation.m:167
#8  0xb76cfa73 in objc_msg_lookup () from 
/usr/lib/i386-linux-gnu/libobjc.so.3
#9  0xb7e4b76a in -[GSThemeInspector update:] (self=0xb7e4dad3,
    _cmd=0x8396a6c, sender=0xb7fce9a8) at GSThemeInspector.m:182
#10 0x08396a6c in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)


On FreeBSD, when I try the same I get no warning, no crash, just a hang.

Riccardo


Fred Kiefer wrote:
> I was not aware of a bug in the theme panel. Could you please give the 
> details on how to reproduce it?
>
> The back trace you report looks somewhat corrupted. The theme 
> description ("Neos. The next step in theming, but with a strong root 
> in NeXT.") is getting used as a selector name. This shouldn't happen 
> in our code and it definitely doesn't happen on line 182 in 
> GSThemeInspector.m. You will need to set a breakpoint a bit before 
> that line to find out what actually goes on.
>
> Before you do this, could you please make sure that you have 
> recompiled all of GNUstep plus all the themes you have installed.
>
> Fred