Re: [Dri-users] Raden 7500 M7 bug?

[Felix <fx...@gm...>]

On 20 Jun 2003 15:28:46 -0700
James Gallagher <jga...@gs...> wrote:

> Hi,
> 
> I've been using a Radeon 7500 M7 (in a Dell Inspiron laptop) with RedHat
> 9.0 and their bundle of XFree86 4.3.0. When X starts DRI is on and it
> works fine in most cases. However, in some circumstances my display will
> freeze completely except for the mouse. Syslog says the following right
> before the crash (the 14:47:52 entry is the last one before I reboot the
> machine and it take about 1:40 seconds after that for syslog to start).
> Here's the relevant part of my syslog:
> 
>         Jun 20 14:33:26 comet modprobe: modprobe: Can't locate module
>         char-major-13-0
>         Jun 20 14:44:45 comet last message repeated 4 times
>         Jun 20 14:44:45 comet last message repeated 3 times
>         Jun 20 14:47:04 comet kernel: [drm:radeon_cp_cmdbuf] *ERROR* bad
>         cmd_type 255 at 08a937ac
>         Jun 20 14:47:51 comet modprobe: modprobe: Can't locate module
>         char-major-13-0
>         Jun 20 14:47:51 comet last message repeated 3 times
>         Jun 20 14:47:52 comet kernel: [drm:radeon_freelist_get] *ERROR*
>         returning NULL!
>         Jun 20 14:49:31 comet syslogd 1.4.1: restart.
>         
> I am pretty sure the message char-major-13-0 are not related, but given
> their proximity, I figured I would include them.

char-major-13 are the devices in /dev/input. So it should be unrelated.

The error message from radeon_freelist_get indicates that you run out of
DMA buffers. This should not happen unless you have many GLX contexts
open at the same time. I fixed a DMA buffer leak in the kernel driver a
couple of months ago, long before the XFree86 4.3 release. Anyway, I
don't know how recent the radeon kernel module is that comes with RedHat
9.0. It may not have the fix.

> 
> Does anyone know of a workaround for this problem? Or know what the
> problem is?

You could try a more recent radeon kernel module if you don't mind the
effort. Download a binary snapshot from the DRI web site. The
installation script will compile and install a new radeon kernel module.
However, this usually requires that you have kernel sources installed
and run a kernel that you compiled from those sources.

> 
> James
> -- 
> James Gallagher <jga...@gs...>

Regards,
  Felix

------------    __\|/__    ___     ___       -------------------------
 Felix       ___\_e -_/___/ __\___/ __\_____   You can do anything,
   Kühling  (_____\Ä/____/ /_____/ /________)  just not everything
 fx...@gm...       \___/   \___/   U        at the same time.