can any body tell me what does this mean it happen just before my machine locked up and had to pull the plug to reset it? or where to look for it Jan 23 17:00:40 linux kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000004 Jan 23 17:00:40 linux kernel: printing eip: Jan 23 17:00:40 linux kernel: f287cd26 Jan 23 17:00:40 linux kernel: *pde = 00000000 Jan 23 17:00:40 linux kernel: Oops: 0002 [#1] Jan 23 17:00:40 linux kernel: CPU: 0 Jan 23 17:00:40 linux kernel: EIP: 0060:[__crc___down_failed+3522992/4912514] Tainted: PF U Jan 23 17:00:40 linux kernel: EIP: 0060:[<f287cd26>] Tainted: PF U Jan 23 17:00:40 linux kernel: EFLAGS: 00010286 (2.6.5-7.111.19-default) Jan 23 17:00:40 linux kernel: EIP is at reiserfs_add_ordered_list+0x26/0xa0 [reiserfs] Jan 23 17:00:40 linux kernel: eax: 80000008 ebx: 80000000 ecx: 00000000 edx: 00000000 Jan 23 17:00:40 linux kernel: esi: cf1ee694 edi: f2d64000 ebp: ed8e0000 esp: cd569d78 Jan 23 17:00:40 linux kernel: ds: 007b es: 007b ss: 0068 Jan 23 17:00:40 linux kernel: Process firefox-bin (pid: 30946, threadinfo=cd568000 task=ec400d00) Jan 23 17:00:40 linux kernel: Stack: 00000001 cf1ee694 00001000 f2867285 00000000 00000001 00000000 00000044 Jan 23 17:00:40 linux kernel: cf1ee694 00001000 00000000 00000000 c14d13c0 ec41294c 00000000 d08615c4 Jan 23 17:00:40 linux kernel: 0000007b de2d2458 00000000 e82fbaa4 0000001f 00000000 00000000 00000000 Jan 23 17:00:40 linux kernel: Call Trace: Jan 23 17:00:40 linux kernel: [__crc___down_failed+3434255/4912514] reiserfs_commit_page+0x155/0x200 [reiserfs] Jan 23 17:00:40 linux kernel: [<f2867285>] reiserfs_commit_page+0x155/0x200 [reiserfs] Jan 23 17:00:40 linux kernel: [__crc___down_failed+3434531/4912514] reiserfs_submit_file_region_for_write+0x69/0x2b0 [reiserfs] Jan 23 17:00:40 linux kernel: [<f2867399>] reiserfs_submit_file_region_for_write+0x69/0x2b0 [reiserfs] Jan 23 17:00:40 linux kernel: [__crc___down_failed+3443882/4912514] reiserfs_file_write+0x400/0x639 [reiserfs] Jan 23 17:00:40 linux kernel: [<f2869820>] reiserfs_file_write+0x400/0x639 [reiserfs] Jan 23 17:00:40 linux kernel: [do_sync_read+146/240] do_sync_read+0x92/0xf0 Jan 23 17:00:40 linux kernel: [<c0158d72>] do_sync_read+0x92/0xf0 Jan 23 17:00:40 linux kernel: [schedule_timeout+159/176] schedule_timeout+0x9f/0xb0 Jan 23 17:00:40 linux kernel: [<c0126d0f>] schedule_timeout+0x9f/0xb0 Jan 23 17:00:40 linux kernel: [poll_freewait+58/80] poll_freewait+0x3a/0x50 Jan 23 17:00:40 linux kernel: [<c016a73a>] poll_freewait+0x3a/0x50 Jan 23 17:00:40 linux kernel: [sys_poll+1000/1120] sys_poll+0x3e8/0x460 Jan 23 17:00:40 linux kernel: [<c016ab38>] sys_poll+0x3e8/0x460 Jan 23 17:00:40 linux kernel: [__crc___down_failed+3442858/4912514] reiserfs_file_write+0x0/0x639 [reiserfs] Jan 23 17:00:40 linux kernel: [<f2869420>] reiserfs_file_write+0x0/0x639 [reiserfs] Jan 23 17:00:40 linux kernel: [vfs_write+159/256] vfs_write+0x9f/0x100 Jan 23 17:00:40 linux kernel: [<c0158a5f>] vfs_write+0x9f/0x100 Jan 23 17:00:40 linux kernel: [sys_write+129/208] sys_write+0x81/0xd0 Jan 23 17:00:40 linux kernel: [<c0158c91>] sys_write+0x81/0xd0 Jan 23 17:00:40 linux kernel: [sys_gettimeofday+61/144] sys_gettimeofday+0x3d/0x90 Jan 23 17:00:40 linux kernel: [<c0122bfd>] sys_gettimeofday+0x3d/0x90 Jan 23 17:00:40 linux kernel: [sysenter_past_esp+82/121] sysenter_past_esp+0x52/0x79 Jan 23 17:00:40 linux kernel: [<c0107dc9>] sysenter_past_esp+0x52/0x79 Jan 23 17:00:40 linux kernel: Jan 23 17:00:40 linux kernel: Code: 89 4a 04 89 11 89 40 04 89 43 08 8b 87 a4 00 00 00 8d 53 08 Jan 23 17:03:05 linux kernel: <6>agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0. Jan 23 17:03:05 linux kernel: agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode Jan 23 17:03:05 linux kernel: agpgart: Putting AGP V2 device at 0000:01:00.0 into 1x mode Jan 23 17:04:23 linux kernel: agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0. Jan 23 17:04:23 linux kernel: agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode Jan 23 17:04:23 linux kernel: agpgart: Putting AGP V2 device at 0000:01:00.0 into 1x mode Jan 23 17:04:57 linux init: Switching to runlevel: 3 Jan 23 17:05:17 linux kernel: agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0. Jan 23 17:05:17 linux kernel: agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode Jan 23 17:05:17 linux kernel: agpgart: Putting AGP V2 device at 0000:01:00.0 into 1x mode Jan 23 17:07:37 linux syslogd 1.4.1: restart. -- Hans hanskrueger@adelphia.net