Re: Crash with Gtk-DirectFB

["Suzuki K P" <suzuki kp gmail com>]

Hi,

I could see the below messages as well in another crash:


(-) [Main Thread       7.293] (22412) IDirectFBSurfaceW:
IDirectFBSurface_Window_Release( 0x8c17c00 )
(-) [Main Thread       7.331] (22412) IDirectFBSurfaceW:
IDirectFBSurface_Window_Destruct( 0x8c17c00 )
(!) [Main Thread       7.331] (22412) *** Assertion [((FusionObject*)
object)->magic == D_MAGIC("FusionObject")] failed ***
[../../src/core/windows.h:83
in dfb_window_unref()]

There seems to be stray pointer which is corrupting the memory area.

Thanks

Suzuki

On Dec 10, 2007 4:33 PM, Suzuki K P <suzuki kp gmail com> wrote:
> Hi,
>
> I was trying to bring up SCIM on gtk-directFB. But some how the
> scim-gtk-panel was crashing with the following stack trace :
>
>
> Backtrace:
> /home/suzie/lib/libfusion-1.0.so.0(_fusion_fd+0x1e)[0x37f32e]
> /home/suzie/lib/libfusion-1.0.so.0(fusion_ref_down+0x37)[0x389917]
> /home/suzie/lib/libdirectfb-1.0.so.0(dfb_window_unref+0x5e)[0x507053]
> /home/suzie/lib/libdirectfb-1.0.so.0(IDirectFBSurface_Window_Destruct+0x1c)[0x50710c]
> /home/suzie/lib/libdirectfb-1.0.so.0(IDirectFBSurface_Window_Release+0xad)[0x5071fd]
> /home/suzie/lib/libgdk-directfb-2.0.so.0(_gdk_directfb_move_resize_child+0xd3)[0x25c0f3]
> /home/suzie/lib/libgdk-directfb-2.0.so.0(dfb_events_process_window_event+0x809)[0x2513a9]
> /home/suzie/lib/libgdk-directfb-2.0.so.0(dfb_events_io_func+0xad)[0x25184d]
> /home/suzie/lib/libglib-2.0.so.0(g_io_unix_dispatch+4d)[0x64823d]
> /home/suzie/lib/libglib-2.0.so.0(g_main_context_dispatch+0x17c)[0x618c0c]
> /home/suzie/lib/libglib-2.0.so.0 (g_main_context_iterate+0x3ef)[0x61c03f]
> /home/suzie/lib/libglib-2.0.so.0(g_main_loop_run+0x1a9)[0x61c3e9]
> /home/suzie/lib/libgtk-directfb-2.0.so.0(gtk_main+0xb4)[0x8e2944]
> /home/suzie/lib/scim-1.0/scim-panel-gtk[0x805dac9]
> /lib/libc.so.6(__libc_start_main+0xe0)[0xdf0f70]
> /home/suzie/lib/scim-1.0/scim-panel-gtk(__gxx_personality_v0+0x305)[0x804e511]
>
>
> By the way, I tried different combinations with multi core support enabled.
>
> directfb-1.0.0 + gtk-2.12 (linux-fusion 3.2.4/3.2.2)
> directfb-1.1.0  + gtk-2.12/gtk+-2.10.13 (linux-fusion 7.0.3)
>
>
> Everything ends up in the same crash. The log is attached with this mail.
>
> It looks like we are crashing :at : lib/fusion/fusion.c:
> int
> _fusion_fd( const FusionWorldShared *shared )
> {
>      int          index;
>      FusionWorld *world;
>
>      D_MAGIC_ASSERT( shared, FusionWorldShared );
>
> with "shared" being a corrupted pointer. (0x20000000)
>
> Any thoughts or suggestions ? Is this is a familiar issue ?
>
>
> Thanks
>
> Suzuki
>