Re: [Gnash-dev] Releasing 0.7.2 RSN (i.e. on monday)...

[strk]

Well, at this point I'm even more convinced about the stack corruption
thing... Unfortunately I still didn't handle to build gnash with
propolice activated.

I guess 'wiping' out deleted memory might help us, but it's probably
something that's better implemented as a delete wrapper itself ?


--strk;

On Mon, Nov 06, 2006 at 05:18:32PM +0100, strk wrote:
> On Mon, Nov 06, 2006 at 04:52:47PM +0100, strk wrote:
> > On Mon, Nov 06, 2006 at 08:42:43AM -0700, Rob Savoye wrote:
> > > strk wrote:
> > > 
> > > > Segfaults in both cases, NOT always.
> > > 
> > >   I can't reproduce this anymore...
> > > 
> > > > PS: we should be discussing this in the bug tracker 
> > > 
> > >   Probably... but we need to decide whether this is a show stopper bug,
> > > can we make a workaround...
> > 
> > I think we might try waiting for the loader thread to complete
> 
> mm.. I tried this (ensure_frame_loaded = total_frame_count).
> THis ensures that all frames are loaded before the playhead starts.
> At that point the loader thread should be just sleeping.
> 
> Well, with -r1 (no sound) it opens up a spash screen, (click to play).
> You click and animation starts and almost complete, except
> a final Segmentation Fault. 
> 
> gdb first lines:
> 
>   [Thread debugging using libthread_db enabled]
>   [New Thread 1092611168 (LWP 17825)]
>   [New Thread 1103264688 (LWP 17828)]
>   [Thread 1103264688 (zombie) exited]
> 
> ... loading thread exited ...
> 
>   Program received signal SIGSEGV, Segmentation fault.
> (gdb) bt
> #0  0x4006b8d5 in 
> gnash::render_handler_agg<agg::pixfmt_alpha_blend_rgb<agg::blender_rgb<agg::rgba8,
>  agg::order_rgb>, agg::row_accessor<unsigned char> > >::clear_framebuffer 
> (this=0x80bf738, left=602, top=0, width=4294967243, height=43, 
>     color={r = 0 '\0', g = 0 '\0', b = 0 '\0', a = 255 'ÿ'})
>     at agg_pixfmt_rgb.h:323
> #1  0x40046d9b in 
> gnash::render_handler_agg<agg::pixfmt_alpha_blend_rgb<agg::blender_rgb<agg::rgba8,
>  agg::order_rgb>, agg::row_accessor<unsigned char> > >::begin_display 
> (this=0x80bf738, background_color=
>       {m_r = 0 '\0', m_g = 0 '\0', m_b = 0 '\0', m_a = 255 'ÿ'})
>     at agg_color_rgba.h:250
> #2  0x40118d60 in gnash::render::begin_display (viewport_x0=0, viewport_y0=0, 
>     viewport_width=0, viewport_height=0, x0=0, x1=0, y0=0, y1=0)
>     at /home/strk/src/gnash/gnash-0.7.2-branch/server/render.cpp:104
> #3  0x400e9b45 in gnash::movie_root::display (this=0x83c8048) at rect.h:160
> #4  0x40284976 in gnash::Gui::display (this=0x8050510, m=0x83c8048)
> 
> --strk;
> 
> 
> 
> _______________________________________________
> Gnash-dev mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/gnash-dev

-- 

 /"\    ASCII Ribbon Campaign
 \ /    Respect for low technology.
  X     Keep e-mail messages readable by any computer system.
 / \    Keep it ASCII.