Mesa: texture_from_pixmap outputs white patch

[Michel Dänzer]

On Mon, 2008-07-21 at 12:11 -0700, Mohan Parthasarathy wrote:
> 
> 
> On Mon, Jul 21, 2008 at 10:36 AM, Michel Dänzer
> <michel at tungstengraphics.com> wrote:
>         On Mon, 2008-07-21 at 10:23 -0700, Mohan Parthasarathy wrote:
>         >
>         >
>         >         >
>         >         >         Sounds like the X server crashed, if this
>         is
>         >         reproducible it
>         >         >         would be
>         >         >         good to track it down
>         >         >
>         >         > This can be reproduced by just running
>         texture_from_pixmap
>         >         in a tight
>         >         > loop. At least i can reproduce it.
>         >
>         >
>         >         Good, can you get a gdb backtrace from the X server
>         crash?
>         >
>         >
>         > gdb method does not seem to work as the process exits and i
>         have no
>         > trace in gdb. And after spending lot of time in settup up
>         core dumps
>         > on my machine, i have not been successful in getting a core
>         dump. I
>         > will try some more later today..
>         
>         
>         I usually attach gdb to the running X server process before
>         reproducing
>         a crash.
>         
>         
>  
> That's what  i am doing too..
>  
>  
> (gdb) bt
> #0  0xffffe410 in __kernel_vsyscall ()
> #1  0xb7ccc39d in select () from /lib/tls/i686/cmov/libc.so.6
> #2  0x0812b79d in WaitForSomething (pClientsReady=0x83af6f8) at
> WaitFor.c:236
> #3  0x0808c00d in Dispatch () at dispatch.c:372
> #4  0x08071855 in main (argc=10, argv=0xbfa80ff4, envp=0x0) at
> main.c:415
> (gdb) c
> Continuing.
> 
> Program exited with code 0377.
> (gdb) bt
> No stack.

So this exit code 0377 (= 255) happens when you run texture_from_pixmap?

Weird... Anything interesting in the X server's stderr output?


-- 
Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer