Hi
This is trace and ps when it happened.
Alex
===================================================================
kernel: page fault trap, code=0
Stopped at fxp_intr+0x206: movl 0x20(%edi),%eax
ddb> trace
fxp_intr(d0b5b000) at fxp_intr+0x206
Xrecurse_legacy5() at Xrecurse_legacy5+0x86
--- interrupt ---
apm_cpu_idle(b0,d05ced60,d05cebe0,7fffffff,d021b65b) at apm_cpu_idle+0x42
idle_loop(d067d260,28,0,0,80000000) at idle_loop+0x5
bpendtsleep(d05cebe0,4,d05102b1,0,0,ffffffff,d04c8372,0) at bpendtsleep
uvm_scheduler(d05cebdc,3,0,d04c8372,f730000) at uvm_scheduler+0x6b
check_console(0,0,0,0,0) at check_console
ddb>
========================================================================
ddb> ps
PID PPID PGRP UID S FLAGS WAIT COMMAND
31934 2902 31934 0 3 0x44186 netio ping
2902 10337 2902 0 3 0x4086 wait bash
16247 12613 16247 0 3 0x4086 kqread tail
12613 3805 12613 0 3 0x4086 wait bash
25153 22202 25153 0 3 0x4086 ttyin bash
3805 1 3805 0 3 0x4086 pause ksh
4312 1 4312 0 3 0x4086 ttyin getty
22055 1 22055 0 3 0x4086 ttyin getty
3599 1 3599 0 3 0x4086 ttyin getty
10337 1 10337 0 3 0x4086 pause ksh
22202 1 22202 0 3 0x4086 pause ksh
16533 1 16533 0 3 0x84 select cron
6826 1 6826 0 3 0x40184 select sendmail
24863 1 24863 0 3 0x84 select sshd
21495 1 21495 0 3 0x184 select inetd
7961 24161 24161 73 3 0x184 poll syslogd
24161 1 24161 0 3 0x84 netio syslogd
7664 1 7664 77 3 0x184 poll dhclient
21692 1 248 0 3 0x86 poll dhclient
16 0 0 0 3 0x100204 crypto_wa crypto
15 0 0 0 3 0x100204 aiodoned aiodoned
14 0 0 0 3 0x100204 syncer update
13 0 0 0 3 0x100204 cleaner cleaner
12 0 0 0 3 0x100204 reaper reaper
11 0 0 0 3 0x100204 pgdaemon pagedaemon
10 0 0 0 3 0x100204 pftm pfpurge
9 0 0 0 3 0x100204 usbevt usb4
8 0 0 0 3 0x100204 usbevt usb3
7 0 0 0 3 0x100204 usbevt usb2
6 0 0 0 3 0x100204 usbevt usb1
5 0 0 0 3 0x100204 usbtsk usbtask
4 0 0 0 3 0x100204 usbevt usb0
3 0 0 0 3 0x100204 apmev apm0
2 0 0 0 3 0x100204 kmalloc kmthread
1 0 1 0 3 0x4084 wait init
0 -1 0 0 3 0x80204 scheduler swapper
=======================================================================