Comment 1 for bug 65827

I have the same problem.

This may be related to NFS as I have my home drive mounted over NFS using the nfs-user-server in edgy.

Nov 11 17:30:05 os-i03 kernel: [17179760.284000] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] printing eip:
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] c011a6b1
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] *pde = 1071c067
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] Oops: 0000 [#1]
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] SMP
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] Modules linked in: binfmt_misc rfcomm l2cap bluetooth vmnet vmmon mga drm speedstep_lib cpufreq_userspace cpufreq_stats freq_table cpufreq_powersave cpufreq_ondemand cpufreq_conservative video tc1100_wmi sony_acpi sbs pcc_acpi i2c_ec i2c_core hotkey dev_acpi container button battery asus_acpi ac ipv6 nfs lockd sunrpc af_packet lp sg snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_pcm snd_mixer_oss snd_seq_dummy snd_seq_oss e100 matrox_w1 mii wire floppy tsdev serio_raw evdev pcspkr psmouse snd_seq_midi snd_rawmidi snd_seq_midi_event hw_random shpchp pci_hotplug intel_agp agpgart parport_pc parport snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc ext3 jbd sd_mod uhci_hcd usbcore ide_generic aic7xxx scsi_transport_spi scsi_mod ide_cd cdrom piix generic thermal processor fan fbcon tileblit font bitblit softcursor vesafb capability commoncap
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] CPU: 0
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] EIP: 0060:[kmap_atomic+17/128] Tainted: P VLI
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] EFLAGS: 00210202 (2.6.17-10-generic #2)
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] EIP is at kmap_atomic+0x11/0x80
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] eax: 00000000 ebx: 00000000 ecx: c39a0000 edx: 00000003
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] esi: 00000003 edi: 000003f8 ebp: c5fd4450 esp: c39a1d7c
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] ds: 007b es: 007b ss: 0068
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] Process beagled-helper (pid: 5275, threadinfo=c39a0000 task=c48db560)
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] Stack: 00000004 00000c08 e0ba9ca8 000003fc c5e013c0 00000400 c5fd4450 e0baac42
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] 00000004 c036f7a8 00200206 00200046 c5fd44fc 00000000 00000000 c01e2370
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] 00000001 c01e2c0a 00000c00 00000000 c5fd44fc c3282f20 00000000 c5fd44f8
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] Call Trace:
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] <e0ba9ca8> nfs_readpage_truncate_uninitialised_page+0xe8/0x130 [nfs] <e0baac42> nfs_readpage+0x272/0x4f0 [nfs]
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] <c01e2370> radix_tree_node_alloc+0x10/0x60 <c01e2c0a> radix_tree_insert+0x1ca/0x210
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] <c014c698> do_generic_mapping_read+0x508/0x590 <c014d118> __generic_file_aio_read+0xf8/0x270
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] <c014b8a0> file_read_actor+0x0/0xf0 <e0ba4104> nfs_revalidate_mapping+0x44/0x160 [nfs]
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] <c014d2d5> generic_file_aio_read+0x45/0x60 <c016a5a4> do_sync_read+0xc4/0x100
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] <c0136180> autoremove_wake_function+0x0/0x50 <c0153259> force_page_cache_readahead+0x59/0x80
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] <c02dac60> lock_kernel+0x20/0x40 <c016b05c> vfs_read+0xbc/0x180
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] <c016a4e0> do_sync_read+0x0/0x100 <c016b5d1> sys_read+0x41/0x70
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] <c0102fbb> sysenter_past_esp+0x54/0x79
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] Code: e0 05 03 05 00 cc 47 c0 c3 0f 0b 98 00 6b 30 2f c0 eb d4 8d b4 26 00 00 00 00 56 b9 00 e0 ff ff 53 89 c3 21 e1 83 41 14 01 89 d6 <8b> 00 c1 e8 1e 8b 14 85 84 90 3e c0 8b 82 0c 06 00 00 05 80 13
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] EIP: [kmap_atomic+17/128] kmap_atomic+0x11/0x80 SS:ESP 0068:c39a1d7c
Nov 11 17:30:05 os-i03 kernel: [17179760.284000] <6>note: beagled-helper[5275] exited with preempt_count 1