Panic at boot time on SMP

Anyone's ears burning? :)

Kris

Booting [/boot/kernel/kernel]...
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 5.1-CURRENT #22: Wed Jul  2 17:39:58 PDT 2003
    kris_at_bento.FreeBSD.org:/usr/src/sys/i386/compile/LOCAL5
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0443000.
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 730843207 Hz
CPU: Intel Pentium III (730.84-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x683  Stepping = 3
  Features=0x387fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,PN,MMX,FXSR,SSE>
real memory  = 1073741824 (1024 MB)
avail memory = 1038618624 (990 MB)
Programming 16 pins in IOAPIC #0
IOAPIC #0 intpin 2 -> irq 0
Programming 16 pins in IOAPIC #1
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): apic id:  1, version: 0x00040011, at 0xfee00000
 cpu1 (AP):  apic id:  0, version: 0x00040011, at 0xfee00000
 io0 (APIC): apic id:  2, version: 0x000f0011, at 0xfec00000
 io1 (APIC): apic id:  3, version: 0x000f0011, at 0xfec01000


Fatal trap 12: page fault while in kernel mode
cpuid = 0; lapic.id = 01000000
fault virtual address   = 0xdf119fec
fault code              = supervisor write, page not present
instruction pointer     = 0x8:0xc030b254
stack pointer           = 0x10:0xc0467b48
frame pointer           = 0x10:0xc0467b48
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 0 (swapper)
kernel: type 12 trap, code=0
Stopped at      cpu_thread_setup+0x24:  movl    $0,0x24c(%ecx)
db> trace
cpu_thread_setup(c21ab000,0,c033b1d4,be,0) at cpu_thread_setup+0x24
thread_init(c21ab000,128,c034ad07,2c8,1) at thread_init+0x6c
slab_zalloc(c218c900,2,0,c034ad07,66e) at slab_zalloc+0x32c
uma_zone_slab(c218c900,2,c034ad07,611,c218c9c8) at uma_zone_slab+0xd8
uma_zalloc_bucket(c218c900,2,c034ad07,57b,c02aeb07) at uma_zalloc_bucket+0x17d
uma_zalloc_arg(c218c900,0,2,c0467c44,c01ae3ab) at uma_zalloc_arg+0x2e9
thread_alloc(c21aa000,c034ad07,2c8,c02c2547,0) at thread_alloc+0x28
proc_init(c21aa000,1e4,c034ad07,2c8,1) at proc_init+0x2b
slab_zalloc(c218c800,2,0,c034ad07,66e) at slab_zalloc+0x32c
uma_zone_slab(c218c800,2,c034ad07,611,c218c8c8) at uma_zone_slab+0xd8
uma_zalloc_bucket(c218c800,2,c034ad07,57b,c0338268) at uma_zalloc_bucket+0x17d
uma_zalloc_arg(c218c800,0,2,dc,c0338e8e) at uma_zalloc_arg+0x2e9
fork1(c038eba0,60034,0,c0467d50,63) at fork1+0x252
kthread_create(c01a4cb0,0,0,40000,0,c033874f) at kthread_create+0x48
ktrace_init(0,462000,462c00,462000,0) at ktrace_init+0xf5
mi_startup() at mi_startup+0xb5
begin() at begin+0x2c
db>