(unknown charset) panic

ipv6# uname -a
FreeBSD ipv6.ppk.itb.ac.id 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Wed Oct 15 14:13:04 WIT 2003     dikshie_at_ipv6.ppk.itb.ac.id:/usr/obj/usr/src/sys/PPK  i386





panic: mtx_lock() of spin mutex %s _at_ %s:%d
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0xdeadc0de
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc0566868
stack pointer           = 0x10:0xcfe1f8dc
frame pointer           = 0x10:0xcfe1f8dc
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         = 12 (swi1: net)
trap number             = 12
panic: page fault
Uptime: 6m52s
Dumping 255 MB
 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
---
Reading symbols from /usr/obj/usr/src/sys/PPK/modules/usr/src/sys/modules/acpi/acpi.ko.debug...done.
Loaded symbols for /usr/obj/usr/src/sys/PPK/modules/usr/src/sys/modules/acpi/acpi.ko.debug
Reading symbols from /boot/kernel/daemon_saver.ko...done.
Loaded symbols for /boot/kernel/daemon_saver.ko
#0  doadump () at /usr/src/sys/kern/kern_shutdown.c:240
240             dumping++;


(kgdb) bt
#0  doadump () at /usr/src/sys/kern/kern_shutdown.c:240
#1  0xc04fedfc in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:372
#2  0xc04ff187 in panic () at /usr/src/sys/kern/kern_shutdown.c:550
#3  0xc0693176 in trap_fatal (frame=0xcfe1f89c, eva=0) at /usr/src/sys/i386/i386/trap.c:820
#4  0xc0692e12 in trap_pfault (frame=0xcfe1f89c, usermode=0, eva=3735929054) at /usr/src/sys/i386/i386/trap.c:734
#5  0xc06929cd in trap (frame=
      {tf_fs = -1066598376, tf_es = -1066139632, tf_ds = -1066008560, tf_edi = -1066574631, tf_esi = -559038242, tf_ebp = -807274276, tf_isp = -807274296, tf_ebx = -807274048, tf_edx = -559038242, tf_ecx = 0, tf_eax = -559038242, tf_trapno = 12, tf_err = 0, tf_eip = -1068079000, tf_cs = 8, tf_eflags = 66118, tf_esp = -807274076, tf_ss = -1068369551})
    at /usr/src/sys/i386/i386/trap.c:419
#6  0xc06836c8 in calltrap () at {standard input}:102
#7  0xc051f971 in kvprintf (fmt=0xc06d5cd9 " _at_ %s:%d", func=0xc051f310 <snprintf_func>, arg=0xcfe1f9c0, radix=10,
    ap=0xcfe1fa0c "`\002nĄd\006") at /usr/src/sys/kern/subr_prf.c:669
#8  0xc051f28e in vsnprintf (str=0xc07433a0 "mtx_lock() of spin mutex ", size=0, format=0x0, ap=0x0)
    at /usr/src/sys/kern/subr_prf.c:414
#9  0xc04ff0a1 in panic (fmt=0xc06d5cbe "mtx_lock() of spin mutex %s _at_ %s:%d") at /usr/src/sys/kern/kern_shutdown.c:511
#10 0xc04f5196 in _mtx_lock_flags (m=0xc4392990, opts=0, file=0xc06e0260 "/usr/src/sys/netinet/ip_input.c", line=1636)
    at /usr/src/sys/kern/kern_mutex.c:332
#11 0xc058e6ce in ip_rtaddr (dst={s_addr = 3228435040}, rt=0xc4392990) at /usr/src/sys/netinet/ip_input.c:1636
#12 0xc058e99f in ip_forward (m=0xc4392990, ro=0xcfe1fc38, srcrt=0, next_hop=0x0) at /usr/src/sys/netinet/ip_input.c:1840
#13 0xc058d764 in ip_input (m=0xc16e3100) at /usr/src/sys/netinet/ip_input.c:762
#14 0xc05758de in netisr_processqueue (ni=0xc0769d50) at /usr/src/sys/net/netisr.c:140
#15 0xc0575d18 in swi_net (dummy=0x0) at /usr/src/sys/net/netisr.c:246
#16 0xc04eb362 in ithread_loop (arg=0xc16bfd00) at /usr/src/sys/kern/kern_intr.c:534
#17 0xc04ea35f in fork_exit (callout=0xc04eb1d0 <ithread_loop>, arg=0x0, frame






-dikshie-