kernel panic

Jun 20 05:30:01 www2 kernel: Unable to handle kernel paging request at virtual address 00078510
Jun 20 05:30:01 www2 kernel:  printing eip:
Jun 20 05:30:01 www2 kernel: c0140592
Jun 20 05:30:01 www2 kernel: *pde = 225d6001
Jun 20 05:30:01 www2 kernel: Oops: 0000 [#1]
Jun 20 05:30:01 www2 kernel: SMP
Jun 20 05:30:01 www2 kernel: Modules linked in: rfcomm l2cap bluetooth parport_pc lp parport ipt_TOS iptable_mangle ip_conntrack_ftp ip_conntrack_irc ipt_REJECT ipt_LOG ipt_limit iptable_filter ipt_multiport ipt_state ip_conntrack ip_tables autofs4 i2c_dev i2c_core sunrpc md5 ipv6 dm_mirror dm_mod button battery ac uhci_hcd ehci_hcd e1000 floppy ext3 jbd ata_piix libata sd_mod scsi_mod
Jun 20 05:30:01 www2 kernel: CPU:    0
Jun 20 05:30:01 www2 kernel: EIP:    0060:[<c0140592>]    Not tainted VLI
Jun 20 05:30:01 www2 kernel: EFLAGS: 00010207   (2.6.9-42.0.2.ELsmp)
Jun 20 05:30:01 www2 kernel: EIP is at page_waitqueue+0x17/0x29
Jun 20 05:30:01 www2 kernel: eax: f953c140   ebx: f493c140   ecx
: 0007827c
Jun 20 05:30:01 www2 kernel: esi: f493c140   edi: 00000001   ebp: 00000001   esp: f7d00e70
Jun 20 05:30:01 www2 kernel: ds: 007b   es: 007b   ss: 0068
Jun 20 05:30:01 www2 kernel: Process kswapd0 (pid: 58, threadinfo=f7d00000 task=f7d2b7b0)
Jun 20 05:30:01 www2 kernel: Stack: c01405ad f493c140 00000002 c01494d1 ffffffff e1bd93d0 00000002 00000000
Jun 20 05:30:01 www2 kernel:        c1de2480 f493c140 c178e440 c178e460 c180a980 c180a9a0 c1f0bf80 00000000
Jun 20 05:30:01 www2 kernel:        00000000 f7d00f58 00000000 00000246 c34fae04 c015cc7a e1bd9320 e1bd9328
Jun 20 05:30:01 www2 kernel: Call Trace:
Jun 20 05:30:02 www2 kernel:  [<c01405ad>] wake_up_page+0x9/0x29
Jun 20 05:30:02 www2 kernel:  [<c01494d1>] invalidate_mapping_pages+0x6f/0xc6
Jun 20 05:30:02 www2 kernel:  [<c015cc7a>] remove_inode_buffers+0x10/0x5f
Jun 20 05:30:02 www2 kernel:  [<c01710d7>] prune_icache+0xf0/0x1ec
Jun 20 05:30:04 www2 kernel:  [<c01711e7>] shrink_icache_memory+0x14/0x2b
Jun 20 05:30:04 www2 kernel:  [<c01497f8>] shrink_slab+0xf8/0x161
Jun 20 05:30:04 www2 kernel:  [<c014aa93>] balance_pgdat+0x1e1/0x30e
Jun 20 05:30:04 www2 kernel:  [<c01497f8>] shrink_slab+0xf8/0x161
Jun 20 05:30:04 www2 kernel:  [<c014aa93>] balance_pgdat+0x1e1/0x30e
Jun 20 05:30:04 www2 kernel:  [<c02d26b1>] schedule+0x86d/0x8db
Jun 20 05:30:04 www2 kernel:  [<c0120420>] prepare_to_wait+0x12/0x4c
Jun 20 05:30:04 www2 kernel:  [<c014ac8a>] kswapd+0xca/0xcc
Jun 20 05:30:04 www2 kernel:  [<c01204f5>] autoremove_wake_function+0x0/0x2d
Jun 20 05:30:04 www2 kernel:  [<c02d46da>] ret_from_fork+0x6/0x14
Jun 20 05:30:04 www2 kernel:  [<c01204f5>] autoremove_wake_function+0x0/0x2d
Jun 20 05:30:04 www2 kernel:  [<c014abc0>] kswapd+0x0/0xcc
Jun 20 05:30:04 www2 kernel:  [<c01041f5>] kernel_thread_helper+0x5/0xb
Jun 20 05:30:04 www2 kernel: Code: 00 00 00 00 89 d8 5b 89 f2 5e e9 7f ff fd ff
5b 31 c0 5e c3 8b 10 b9 20 00 00 00 69 c0 01 00 37 9e c1 ea 1d 8b 14 95 ac b0 43 c0 <2b> 8a 94 02 00 00 d3 e8 c1 e0 04 03 82 8c 02 00 00 c3 56 89 c6
Jun 20 05:30:04 www2 kernel:  <0>Fatal exception: panic in 5 seconds
Jun 20 10:44:23 www2 syslogd 1.4.1: restart.
Jun 20 10:44:23 www2 syslog: syslogd startup succeeded
Jun 20 10:44:23 www2 kernel: klogd 1.4.1, log source = /proc/kmsg started.
Jun 20 10:44:23 www2 kernel: Linux version 2.6.9-42.0.2.ELsmp (bhcompile@ls20-bc1-13.build.redhat.com) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP Thu Aug 17 18:00:32 EDT 2006