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

[Juan Zhao]

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:


(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