5.1-RELEASE; Fatal trap 12: page fault while in kernel mode

the rest of '/var/log/messages' is in the attachment..

Jun 15 22:00:00 kadafi newsyslog[2458]: logfile turned over due to size>100K
Jun 16 00:42:30 kadafi syslogd: kernel boot file is /boot/kernel/kernel
Jun 16 00:42:30 kadafi kernel:
Jun 16 00:42:30 kadafi kernel:
Jun 16 00:42:30 kadafi kernel: Fatal trap 12: page fault while in kernel mode
Jun 16 00:42:30 kadafi kernel: fault virtual address    = 0xbffe0000
Jun 16 00:42:30 kadafi kernel: fault code               = supervisor write, page not present
Jun 16 00:42:30 kadafi kernel: instruction pointer      = 0x8:0xc02c349c
Jun 16 00:42:30 kadafi kernel: stack pointer            = 0x10:0xdf106b10
Jun 16 00:42:30 kadafi kernel: frame pointer            = 0x10:0xdf106b2c
Jun 16 00:42:30 kadafi kernel: code segment             = base 0x0, limit 0xfffff, type 0x1b
Jun 16 00:42:30 kadafi kernel: = DPL 0, pres 1, def32 1, gran 1
Jun 16 00:42:30 kadafi kernel: processor eflags = interrupt enabled, resume, IOPL = 0
Jun 16 00:42:30 kadafi kernel: current process          = 11 (swi7: tty:sio clock)
Jun 16 00:42:30 kadafi kernel: trap number              = 12
Jun 16 00:42:30 kadafi kernel: panic: page fault
Jun 16 00:42:30 kadafi kernel: syncing disks, buffers remaining... 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142 7142