Re: Instant Reboots (was: Re: Postgresql locks up server - no response at all)

On Wed, Aug 04, 2004 at 03:26:13PM -0700, Eric Anholt wrote:
> On Wed, 2004-08-04 at 15:07, Geoff Speicher wrote:
> > On Wed, Aug 04, 2004 at 03:34:49PM -0600, Scott Long wrote:
> > > Geoff Speicher wrote:
> > > 
> > > >FWIW, in mid-late July, my problems were not PREEMPTION-related.  I
> > > >tried everything I could to get usable threaded apps under XFree86, but
> > > >my Athlon XP rebooted every time I tried to run kdm, Firefox, etc.
> > > >
> > > >This included all four combinations of PREEMPTION and ULE/4BSD.  Rolling
> > > >back to July 1 was the only thing that worked for me.
> > > 
> > > Yeah, the instant reboots have hit me too.  Disabling PREEMPTION did
> > > seem to help this for me, but then it might have been a coincidence.
> > > Incidentally, what video drivers are you using?
> > 
> > Snippets from /var/log/XFree86.0.log:
> > 
> > (II) ATI: ATI driver (version 6.4.18) for chipsets: ati, ativga
> > (--) RADEON(0): Chipset: "ATI Radeon VE/7000 QY (AGP)" (ChipID = 0x5159)
> > (II) Loading /usr/X11R6/lib/modules/drivers/radeon_drv.o
> > (II) Module radeon: vendor="The XFree86 Project"
> >         compiled for 4.3.0, module version = 4.0.1
> >         Module class: XFree86 Video Driver
> >         ABI class: XFree86 Video Driver, version 0.6
> > 
> > (II) RADEON(0): [drm] loaded kernel module for "radeon" driver
> > (II) RADEON(0): Direct rendering enabled
> 
> Does this happen without using threaded apps?  More specifically, does
> it continue if you disable DRI in your X config?  If so, please send me
> your dmesg.

Hey, disabling DRI did the trick.  Aside from things being remarkably
slow, it's remarkably stable. ;) Threaded X apps or no, I'm running
a July 19 kernel with no instant reboots.  PREEMPTION disabled,
WITNESS enabled (I misspoke in another message when I said WITNESS was
disabled---apparently I fiddled more than I had remembered).  Toggling
DRI back on and restarting X/kdm reboots immediately.

Geoff