Re: [Dri-devel] DRI segfaults after debian update

[Michel <mic...@ii...>]

On Wed, 2001-11-14 at 13:41, Daniel Polombo wrote:

>    I am using the DRI on my Dell Latitude C800 with a Rage 128, and it ha=
s=20
> been working very well for quite some time now. I have recently updated m=
y=20
> debian woody (weekly apt-get upgrade), though, and from then on, things=20
> suddenly stopped working. I'm not sure which libs were upgraded, though, =
as it=20
> was a rather heavy upgrade.

First make sure that both xserver-xfree86 and xlibmesa3 are the same
versions, namely 4.1.0-x.


> Initial (working) configuration :
> - kernel 2.4.9-ac11
> - using the kernel's r128.o as a module
> - debian woody (testing)
> - XFree 4.1.0-7
>=20
> To try and correct the problem, I upgraded first to a sid (debian unstabl=
e) to=20
> get newer packages. This got my Xfree version to 4.1.0-9. Since this did =
no=20
> good, I also upgraded the kernel to vanilla 2.4.14. Still no good.
>=20
> Direct rendering is enabled :
>=20
>   $ glxinfo
>   name of display: :0.0
>   display: :0  screen: 0
>   direct rendering: Yes
>=20
> But if I try to run a 3D app :
>=20
>   $ /usr/lib/xscreensaver/gears
>   drmR128Clear: return =3D -22
>=20
> Strace'ing the stuff indicates the culprit might be an ioctl not recogniz=
ed by=20
> the driver :
>=20
>   ioctl(4, 0x40146449, 0xbffff638)        =3D -1 EINVAL (Invalid argument=
)
>   write(2, "drmR128Clear: return =3D -22\n", 27) =3D 27
>=20
> And, lastly, the system logs the following error :
>=20
>   [drm:r128_cce_vertex] *ERROR* process 16181 using buffer owned by 0
>=20
> I would appreciate any kind of input on the subject, as this is very frus=
trating!

My first guess would have been a wrong version of the kernel module, but
the one from the 2.4.14 kernel should work. Could there be a stray
libGL, e.g. in /usr/local, that gets picked up? You can check with ldd.


--=20
Earthling Michel D=E4nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member   /  CS student, Free Software enthusiast