Mesa: texture_from_pixmap outputs white patch

[Mohan Parthasarathy]

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.

Any clues ?

-mohan



> >         > Also, with DRI2, what version of the linux kernel i should
> >         be
> >         > running ?
> >
> >
> >         I'm not sure, but I don't think it has any direct requirement
> >         on the
> >         kernel version.
> > Ok. I thought you needed TTM for this ...
>
> Right, but that's not included in any kernel, you'll need a drm Git
> snapshot.
>
>
> --
> Earthling Michel Dänzer           |          http://tungstengraphics.com
> Libre software enthusiast         |          Debian, X and DRI developer
>
>
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