kernel trap

[Jesús Abidan]

sorry for bothering guys, but i have a big problem here, i recently
installed freebsd on a box and i was very happy updating ports, when i
realized the system suddenly reboot, when i saw the dmesg it says:

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x828dee24
fault code              = supervisor write, page not present
instruction pointer     = 0x20:0xc0a27b0b
stack pointer           = 0x28:0xe4f2fb80
frame pointer           = 0x28:0xe4f2fb94
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         = 48 (vnlru)
trap number             = 12
panic: page fault
cpuid = 1
Uptime: 18m45s
Physical memory: 1522 MB
Dumping 203 MB: 188 172 156 140 124 108 92 76 60 44 28 12
Dump complete
Automatic reboot in 15 seconds - press a key on the console to abort
Rebooting...

I searched in google for something but it seems i need to dump the kernel, i
guess if it could be an HD issue.
By the way, the current process line has little variations
(g_down, fsck_ufs, vnlru

Any clue?