7 messages in org.freebsd.freebsd-alphaRemoving VGA card panics the box on boot| From | Sent On | Attachments |
|---|---|---|
| Ruslan Ermilov | Nov 15, 2004 12:39 am | |
| John Baldwin | Nov 15, 2004 10:52 am | |
| Ruslan Ermilov | Nov 15, 2004 10:54 am | |
| Marcel Moolenaar | Nov 15, 2004 11:10 am | |
| Wilko Bulte | Nov 15, 2004 12:29 pm | |
| Ruslan Ermilov | Nov 15, 2004 12:35 pm | |
| Ruslan Ermilov | Nov 15, 2004 12:38 pm |
| Subject: | Removing VGA card panics the box on boot | |
|---|---|---|
| From: | Ruslan Ermilov (ru...@freebsd.org) | |
| Date: | Nov 15, 2004 12:35:59 pm | |
| List: | org.freebsd.freebsd-alpha | |
On Mon, Nov 15, 2004 at 09:29:50PM +0100, Wilko Bulte wrote:
On Mon, Nov 15, 2004 at 08:55:14PM +0200, Ruslan Ermilov wrote..
On Mon, Nov 15, 2004 at 11:12:49AM -0500, John Baldwin wrote:
On Monday 15 November 2004 03:16 am, Ruslan Ermilov wrote:
Hi there,
I needed the unused PCI VGA card for testing another machine, so I pulled it out from my AlphaPC 164SX, and that gave me an
instant panic on boot: : Timecounter "i8254" frequency 1193182 Hz quality 0 : Timecounter "alpha" frequency 533183689 Hz quality 800 : Timecounters tick every 0.976 msec : panic: mtx_lock() of spin mutex (null) @ /usr/src/sys/netinet/igmp.c:431 : cpuid = 0 : KDB: enter: panic : [thread 100004] : Stopped at kdb_enter+0x48: or zero,zero,zero <zero=0x0> : db>
Putting it back in results in normal behavior (no panic). Any hints?
Sounds like something is messing with free'd memory through a stale pointer and happens to be trashing that spin mutex as a result. Not sure on how to track it down however.
The funny thing is that it happens in exactly this same place, and only when I pull the VGA card out. ;)
5.3-<mumble> didn't do that to me for my DS10 when I took the VGA card out.
SRM setting CONSOLE=serial right? (should be but heh...)
No. The console is set to "graphics" in SRM. I'll play with this more tomorrow when I have physical access to hardware.
Cheers,
-- Ruslan Ermilov ru...@FreeBSD.org FreeBSD committer