freebsd7, radeon, xorg-server -> deadlock or so

[Robert Noland]

On Wed, 2010-02-10 at 01:36 +0100, O. Hartmann wrote:
> On 02/10/10 00:24, Oliver Pinter wrote:
> > Hi all!
> >
> > After updated the xorg* and dri* and dependency, the system going to
> > deadlock at second start of xserver. I think it is not an uniqe issue,
> > as others wrote them at freebsd-x11:
> > http://lists.freebsd.org/pipermail/freebsd-x11/2010-February/009370.html
> >
> > The symptoms:
> > * independent from enabled or disabled DRI or GLX, first I think, this
> > is the error, but not
> > * the system going to deadlock state
> > * no coredumps of xorgs
> > * no panic, but the system is unusuable
> > * independent from the driver: probed the radeon and radeonhd driver
> > * independent from the WITHOUT_NOUVEAU or WITH_NOUVEAU compile options
> > (make.conf)
> > * the system is: FreeBSD peonia.teteny.bme.hu 7.3-PRERELEASE FreeBSD
> > 7.3-PRERELEASE #29 r203612+fa83fdf: Mon Feb  8 02:11:08 CET 2010
> > root at peonia.teteny.bme.hu:/usr/obj/usr/src/sys/stable  amd64
> > _______________________________________________
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> > http://lists.freebsd.org/mailman/listinfo/freebsd-stable
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> 
> I had a similar freezing on several FreeBSD 8.0 boxes with either 
> 'radeon' or 'radeonhd/radeonhd-devel' with recent ports. With more 
> expensive graphics cards, like HD4830, HD4850 we never had the issue, 
> but with smaller cards, like HD4670. HD4670 never worked. HD4770 cards 
> work with explicit set
> 
> option "DRI" "OFF"
> 
> As far as I know,  WITHOUT_NOUVEAU does have no effect on the current 
> ports, since it is reported in ports/UPDATING, it prevents building 
> nouveau driver which is broken when using newer libdrm/dri and libGLUT, 
> but those new ports do not seem to be merged into the tree.
> 
> The situation is heavily unsatisfying, since one need an expensive 
> AMD/ATi Radeon card to gain non-3D poor functionality, where a cheaper 
> one should be do the same - but the cheaper ones don't work. Even if one 
> uses AMD64, the situattion is worse and I have no reason using 
> Linux-driver on a FreeBSD box. Hope the situation gets cleared in the 
> nearest future. It's a kind of deadlock. As I said, either spenig a lot 
> of money for a working RV770 based AMD graphics card with poor 
> functionality or nothing so far, since most smaller RV730 chips aren't 
> supported properly by the most recent drivers.

I'm only aware of one issue which leads to corruption.  I have patches
that resolve that issue which are not yet committed.  If your are
experiencing lockups with DRI disabled, then something very strange is
going on and you will need to provide more details.  I don't remember
exactly what drm code I have committed to 7 right now, but it should be
fairly current as I don't think I have much in the way of outstanding
MFCs.  The current drm and radeon drivers work on every card that I
have, which in the r600 class are HD 3650,3850,4650.

robert.

> Regards,
> Oliver
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-- 
Robert Noland <rnoland at FreeBSD.org>
FreeBSD