panic from July 21 kernel (acpi related?)

From: Mike Hunter <mhunter_at_ack.Berkeley.EDU>
Date: Mon, 26 Jul 2004 15:01:18 -0700
Hi,

I upgraded my kernel recently:

FreeBSD fark.com 5.2-CURRENT FreeBSD 5.2-CURRENT #2: Wed
Jul 21 17:17:10 PDT 2004 root_at_fark.com:/usr/obj/usr/src/sys/fark  i386

Unfortunately it seems like a problem from April is still with me.

It's really weird; when I boot my laptop with a MS USB keyboard and a
logitech usb mouse (and external monitor hooked into the back) on wall
power, this crash never happens.  But I got the crash below on wall power,
without the mouse.  It seems like loading without acpi gives better luck,
but I've had it crash without acpi also.  Seems like folk-lore evidence;
so maybe there's some factor I'm missing.

Not using the custom DSDT.aml didn't change anything.  My system is a dell
d800 with bios rev a9.

Please let me know if I can provide more info.

>From memory: (just kidding; hand transcribed...lots of typos and
can't-read-my-own-writing stuff :) )

...
starting bg fsystem checks
Monday July 26 2004

memory modifies after free 0xc1cfc900 (508) val=1000100_at_0xc1cfc900

Fatal trap 12:  page fault while in kernel mode

fault v address 0x1000120
fault code supervisor read, page not present
ins ptr 0x8:0xc0731146
stack 0x10:0xd5378984
frameptr 0x10 0xd5378990
code reg base 0x0 lim 0xfffffff type 0x1b ddl 0 pres 1 det321 gvan 1
proc interrupt enaled ralone iopl=0
current process = 489 (init)
[thr 1000 sn]

db> tr

stoped at mtrash_ctor +0x39 movb 0x20 (%eax), %eax
mtrash_ctor(clcfc900,200,0) mtrash_ctor 0x39
uma_zalloc_arg(c10446c0,0,2) uma_zalloc_arg + 0x124
malloc(188, c081960, 2, 3, c1d06580) uma_zalloc_arg 0x124
elf32_load_file(c1ddb1be, d3f6d0f4, d5378ab0, d5378bd0, 1000) at 0x4c7
kern_execve...
syscall...
xinit0x80_syscall...
syscall((..., f...32, execcve, exp=0x803183c, esp=0xb8bfed7e, ebc=0xbfbfedf8)
Received on Mon Jul 26 2004 - 20:01:19 UTC

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