Mesa: texture_from_pixmap outputs white patch

[Mohan Parthasarathy]

On Mon, Jul 21, 2008 at 11:19 PM, Michel Dänzer <michel at tungstengraphics.com>
wrote:

> 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?
>
Yes.


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

In the gdm log file,

in RADEONProbeOutputModes
*********************************WARN_ONCE*********************************
File r300_mem.c function r300_mem_alloc line 225
Ran out of GART memory (for 1048576)!
Please consider adjusting GARTSize option.
***************************************************************************
Error: Could not get dma buffer... exiting

I guess this explains everything..

-mohan



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