12:43:57 EXT3-fs warning (device hda7): ext3_unlink: Deleting
nonexistent file (328544), 0
13:24:42 EXT3-fs warning (device hda7): ext3_unlink: Deleting
nonexistent file (328544), 0
14:03:04 swap_dup: Bad swap file entry d021df46
14:03:04 swap_free: Bad swap file entry d021df46
14:03:04 swap_dup: Bad swap file entry d021df46
14:03:04 swap_free: Bad swap file entry d021df46
14:03:04 swap_dup: Bad swap file entry d021df46
14:03:04 swap_free: Bad swap file entry d021df46
14:03:04 swap_dup: Bad swap file entry d021df46
14:03:04 swap_free: Bad swap file entry d021df46
14:03:04 swap_free: Bad swap file entry d021df46
16:21:55 EXT3-fs warning (device hda7): ext3_unlink: Deleting
nonexistent file (294916), 0
22:39:31 kjournald starting.  Commit interval 5 seconds
22:39:31 EXT3 FS on hda10, internal journal
22:39:31 EXT3-fs: mounted filesystem with ordered data mode.
22:43:02 Unable to handle kernel NULL pointer dereference at virtual
address 00000b27
22:43:02  printing eip:
22:43:02 02150c1d
22:43:02 *pde = 00000000
22:43:02 Oops: 0000 [#1]
22:43:02 CPU:    0
22:43:03 EIP:    0060:[<02150c1d>]    Not tainted
22:43:03 EFLAGS: 00010206   (2.6.5-1.327)
22:43:03 EIP is at try_to_unmap_one+0x56/0x20c
22:43:03 eax: 032f1a60   ebx: 001ce76f   ecx: 198d3710   edx: 0000001d
22:43:03 esi: 00000adb   edi: 198d3710   ebp: 03331d40   esp: 035d4ce4
22:43:03 ds: 007b   es: 007b   ss: 0068
22:43:03 Process kswapd0 (pid: 8, threadinfo=035d4000 task=035b0cd0)
22:43:03 Stack: 03331d40 03331d40 03331d40 00000040 00000000 02330fa0
02150e16 000220ce
22:43:03        00000000 000220ce 03331d40 00000040 00000000 02330fa0
02146490 00000001
22:43:03        00000000 035d4e80 000000d0 035d4de4 03104cb0 03114fd0
00000000 00000000
22:43:03 Call Trace:
22:43:03  [<02150e16>] try_to_unmap+0x43/0x15b
22:43:03  [<02146490>] shrink_list+0x1ce/0x5d3
22:43:03  [<02145628>] __pagevec_release+0x15/0x1d
22:43:03  [<02146b15>] shrink_cache+0x280/0x557
22:43:03  [<02146140>] shrink_slab+0x70/0x150
22:43:03  [<02147681>] shrink_zone+0x50/0x86
22:43:03  [<021479a4>] balance_pgdat+0x131/0x216
22:43:03  [<02147b77>] kswapd+0xee/0xf0
22:43:03  [<0211bc33>] autoremove_wake_function+0x0/0x28
22:43:03  [<0211bc33>] autoremove_wake_function+0x0/0x28
22:43:03  [<02147a89>] kswapd+0x0/0xf0
22:43:03  [<021041d9>] kernel_thread_helper+0x5/0xb
22:43:03 Code: 81 7e 4c 3c 4b 24 1d 74 1b 8d 46 4c 50 68 49 01 00 00 68 24
22:43:03  <6>note: kswapd0[8] exited with preempt_count 1


I noticed the oops, started to shut down, then the system locked hard.
hda7 is the FC2t3 root partition - freshly installed a few days ago.

I've seen similar ext3 warnings on previous FC2test kernels. (see bug
#116680)