Date: Wed, 29 Mar 2000 23:58:31 -0600 (CST) From: Dave Haney <dave@engg.ksu.edu> To: freebsd-alpha@freebsd.org Subject: Unexpected machine check Message-ID: <Pine.SO4.4.00.10003291814390.21551-100000@phobos.engg.ksu.edu>
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Hello,
I have an AlphaStation 200 4/233 running FreeBSD 4.0-RELEASE, XFree86
version 3.3.6 with a Diamond Stealth 3D 3000 Pro 4MB PCI card for video,
and otherwise stock hardware. When I compile, then run XFree86_SVGA on it
and kill X from the console I started it on with ^C, the machine instantly
crashes with the following error:
unexpected machine check:
mces = 0x1
vector = 0x660
param = 0xfffffc0000006000
pc = 0x1200bac54
ra = 0x1200bac24
cuproc = 0xfffffe0004379d80
pid = 1328, comm = XF86_SVGA
panic: machine check
syncing disks...
done
Uptime: 1d7h25m5s
* This problem did not occur when I was running FreeBSD 4.0-CURRENT.
What's more, I have not changed any hardware configurations since then.
* Tried the machine and found the problems to be reproduceable with both
the GENERIC kernel, and any kernel I choose to build.
* I tried downloading and re-installing FreeBSD 4.0-RELEASE twice, but to
no avail. This problem is perfectly reproduceable.
* The "pc =" and "ra =" "curproc =" and "pid =" parameters change between
crashes.
* While X is running, windows are not drawn properly. For example, xmms
will only come up as a large, black rectangle. TWM will not properly
draw menus.
* After swapping out the Stealth for a STB Velocity 3D, the problems
persisted, with the same symptoms. This may not be a telling factor,
though, as the same chipset is used on both boards.
* As long as XWindows is not running, the machine seems perfectly stable.
I've compiled several kernels on it which seem to run fine.
* the SRM variable pci_parity is set to off.
* If I switch to the S3V server, then the machine will safely exit
XWindows, but if I switch between virtural consoles (while X is still
running), the machine will hard lock, and a few seconds later, the screen
turns blue, and says "CPU HALT CODE = 5" and reboots.
* While using the S3V server, windows seem to be drawn and re-drawn
properly.
Any ideas?
Thanks,
Dave Haney
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