alpha/67626: X crashes an alpha machine, resulting reboot

[Bernd Walter]

On Tue, Jun 20, 2006 at 12:49:25PM -0400, John Baldwin wrote:
> On Tuesday 20 June 2006 10:32, Kazuyoshi Furutaka wrote:
> > Dear John, Mark and all others,
> > 
> > From: John Baldwin <jhb at freebsd.org>
> > Subject: Re: alpha/67626: X crashes an alpha machine, resulting reboot
> > Date: Mon, 19 Jun 2006 08:56:55 -0400
> > 
> > > We'd really need a stacktrace to help.  It would also be useful to know
> > > if more recent versions of the OS (such as 6.1) exhibit the same problems.
> > > 
> > > As far as getting serial console working, you don't need to create a
> > > /boot.config file (that is i386-specific).  However, you need to get SRM
> > > to use the serial console and then the loader and kernel will use it.  
> It's
> > > been a while since I set it up, but I would look at your SRM variables and
> > > see if there's a CONSOLE variable you can set to SERIAL instead of VIDEO
> > > (IIRC).  You can then try running 'init' from SRM to restart SRM which
> > > should then show up on your serial console.  You might be able to find 
> more
> > > definitive instructions on using SRM with a serial console via a web 
> search.
> > 
> > Well, could you tell me how I can collect more information from
> > the current installation, in addition to the attached ?
> > 
> > Later I'll test more recent versions...
> 
> A 0x670 vector machine check indicates a hardware failure specific to the
> CPU such as a cache failure.

On some machine modells it could also be accessing non exiting memory,
which can point to a broken memory mapped videocard driver.
If the video card is on a secondary bus it can also be a sparse
initialisation problem related to PCI-PCI bridges.
Moving slots may help in that case.

-- 
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