When enabling mesa debug mode, weston will get seg fault?

[Kristian Høgsberg]

On Mon, Jul 16, 2012 at 04:20:12PM +0800, Juan Zhao wrote:
> Hi there,
> When I enabled mesa debug mode, westen reported one seg-fault error. Any
> ideas about it? Should we remove that assert for the "none" format, or
> some decent solution?
> The backtrace is like this:

I fixed intel_create_image_from_name() to not call _mesa_get_format_bytes()
for MESA_FORMAT_NONE.  I think the assert is useful in other cases and we
don't want to disable that check.  The fix is in mesa master now.

Kristian

> (gdb) bt 
> #0  0xb7fe1424 in __kernel_vsyscall () 
> #1  0xb7d5ccc1 in raise () from /lib/libc.so.6 
> #2  0xb7d600ee in abort () from /lib/libc.so.6 
> #3  0xb7d55888 in __assert_fail () from /lib/libc.so.6 
> #4  0xb7571350 in _mesa_get_format_bytes (format=MESA_FORMAT_NONE)
> at ./../main/formats.c:1556 
> #5  0xb78fa176 in intel_create_image_from_name (screen=0x8062eb0,
> width=480, height=454, format=4104, name=5, pitch=512,
> loaderPrivate=0x0) at intel_screen.c:236 
> #6  0xb7fd3e61 in dri2_wl_reference_buffer (user_data=0x8065800, name=5,
> buffer=0x805f300) at egl_dri2.c:1341 
> #7  0xb7fcf267 in create_buffer (client=0x824d348, resource=0x826d390,
> id=20, name=5, width=480, height=454, format=875713112, offset0=0,
> stride0=2048, offset1=0, stride1=0, offset2=0, stride2=0) at
> wayland-drm.c:122 
> #8  0xb7fcf37a in drm_create_buffer (client=0x824d348,
> resource=0x826d390, id=20, name=5, width=480, height=454, stride=2048,
> format=875713112) at wayland-drm.c:159 
> #9  0xb7bb460a in ffi_call_SYSV () from /usr/lib/libffi.so.5 
> #10 0xb7bb4360 in ffi_call () from /usr/lib/libffi.so.5 
> #11 0xb7fb4691 in wl_closure_invoke (closure=0x8270ed0,
> target=0x826d390, func=0xb7fcf2ec <drm_create_buffer>, data=0x824d348)
> at connection.c:837 
> #12 0xb7faffe3 in wl_client_connection_data (fd=41, mask=1,
> data=0x824d348) at wayland-server.c:284 
> #13 0xb7fb2973 in wl_event_source_fd_dispatch (source=0x826d750,
> ep=0xbffff154) at event-loop.c:79 
> #14 0xb7fb3163 in wl_event_loop_dispatch (loop=0x805c4e0, timeout=-1) at
> event-loop.c:410 
> #15 0xb7fb0e12 in wl_display_run (display=0x805c4b0) at
> wayland-server.c:1100 
> #16 0x080536d7 in main (argc=<value optimized out>, argv=0xbffff734) at
> compositor.c:3532 
> 
> 
> 
> Thanks,
> Juan 
> 
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