Now the computer hangs when loading kbluetooth and I have to hard-reset. The Oops is also present in 2.6.22-9, and the computer hangs when powering off, in the final stages. I've blacklisted the bluetooth module and now the computer won't hang, but the Oops is still present... ------------------------------------8<----------------------------------------- [ 92.802766] NET: Registered protocol family 17 [ 105.557056] eth0: no IPv6 routers present [ 150.839475] bttv0: PLL can sleep, using XTAL (28636363). [ 153.087223] WARNING: at /build/buildd/linux-source-2.6.22-2.6.22/lib/kref.c:33 kref_get() [ 153.087262] [] kref_get+0x3d/0x40 [ 153.087299] [] kobject_get+0xf/0x20 [ 153.087311] [] sysfs_follow_link+0x232/0x260 [ 153.087371] [] __link_path_walk+0xc84/0xe70 [ 153.087418] [] link_path_walk+0x65/0xc0 [ 153.087482] [] link_path_walk+0x45/0xc0 [ 153.087555] [] sysfs_readdir+0xc0/0x1e0 [ 153.087609] [] do_path_lookup+0x73/0x1b0 [ 153.087626] [] getname+0xa7/0xd0 [ 153.087651] [] __user_walk_fd+0x3b/0x60 [ 153.087681] [] vfs_stat_fd+0x22/0x60 [ 153.087757] [] sysfs_readdir+0xc0/0x1e0 [ 153.087806] [] sys_stat64+0xf/0x30 [ 153.087838] [] sys_futex+0x97/0x100 [ 153.087870] [] filp_close+0x47/0x80 [ 153.087916] [] sysenter_past_esp+0x6b/0xa9 [ 153.088010] ======================= [ 153.088234] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 153.088240] printing eip: [ 153.088242] c01c4add [ 153.088245] *pde = 00000000 [ 153.088249] Oops: 0000 [#1] [ 153.088252] SMP [ 153.088257] Modules linked in: af_packet binfmt_misc p4_clockmod capability lirc_dev ppdev ipv6 video sbs button dock container ac battery speedstep_lib cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_ondemand freq_table cpufreq_conservative dm_crypt fuse eeprom lm85 hwmon_vid i2c_isa i2c_i801 sbp2 lp snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_emu10k1 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss bt878 snd_pcm snd_page_alloc snd_util_mem snd_hwdep tuner snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi tvaudio parport_pc parport pcspkr usblp psmouse snd_seq_midi_event snd_seq snd_timer snd_seq_device bttv serio_raw video_buf ir_common nvidia(P) compat_ioctl32 i2c_algo_bit snd btcx_risc tveeprom videodev v4l2_common v4l1_compat bcm43xx emu10k1_gp i2c_core iTCO_wdt iTCO_vendor_support intel_agp soundcore ieee80211softmac ieee80211 ieee80211_crypt gameport agpgart shpchp pci_hotplug evdev usb_storage ide_core ext3 jbd mbcache usbhid hid libusual sg sd_mod sr_mod cdrom ata_piix e100 mii ohci1394 ieee1394 ehci_hcd ata_generic libata scsi_mod floppy uhci_hcd usbcore raid10 raid456 xor raid1 raid0 multipath linear md_mod dm_mirror dm_snapshot dm_mod thermal processor fan apparmor commoncap aamatch_pcre [ 153.088405] CPU: 0 [ 153.088406] EIP: 0060:[] Tainted: P VLI [ 153.088408] EFLAGS: 00210246 (2.6.22-10-generic #1) [ 153.088414] EIP is at sysfs_follow_link+0x12d/0x260 [ 153.088418] eax: 00000000 ebx: 00000001 ecx: ffffffff edx: ffffffff [ 153.088422] esi: 00000000 edi: 00000000 ebp: 00000003 esp: f6309dd8 [ 153.088426] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [ 153.088431] Process restricted-mana (pid: 4679, ti=f6308000 task=f69c4520 task.ti=f6308000) [ 153.088434] Stack: f8e8c024 f6309f04 f592b000 ffffffea f7664880 f8e8c024 f592a220 f5929d20 [ 153.088446] 00000000 bccb37e1 f592a220 c018a124 0000000d f5f6c016 f6309f04 f5f6c024 [ 153.088458] 00000001 00000000 df8fd880 c23afaa0 c018a375 f5f6c000 c23afaa0 00000000 [ 153.088470] Call Trace: [ 153.088528] [] __link_path_walk+0xc84/0xe70 [ 153.088575] [] link_path_walk+0x65/0xc0 [ 153.088640] [] link_path_walk+0x45/0xc0 [ 153.088714] [] sysfs_readdir+0xc0/0x1e0 [ 153.088769] [] do_path_lookup+0x73/0x1b0 [ 153.088785] [] getname+0xa7/0xd0 [ 153.088811] [] __user_walk_fd+0x3b/0x60 [ 153.088842] [] vfs_stat_fd+0x22/0x60 [ 153.088917] [] sysfs_readdir+0xc0/0x1e0 [ 153.088967] [] sys_stat64+0xf/0x30 [ 153.088997] [] sys_futex+0x97/0x100 [ 153.089028] [] filp_close+0x47/0x80 [ 153.089074] [] sysenter_past_esp+0x6b/0xa9 [ 153.089168] ======================= [ 153.089171] Code: ff 8b 44 24 10 8b 40 24 83 c5 01 85 c0 75 f6 8b 44 24 14 bb 01 00 00 00 31 f6 ba ff ff ff ff 89 04 24 8b 0c 24 89 f0 8b 39 89 d1 ae f7 d1 49 8d 5c 19 01 8b 0c 24 8b 49 24 85 c9 89 0c 24 75 [ 153.089311] EIP: [] sysfs_follow_link+0x12d/0x260 SS:ESP 0068:f6309dd8 [ 257.361491] usb 1-2: USB disconnect, address 5 [ 257.363056] /build/buildd/linux-source-2.6.22-2.6.22/drivers/usb/class/usblp.c: usblp0: removed [ 260.621948] usb 1-2: new full speed USB device using uhci_hcd and address 6 [ 260.822140] usb 1-2: configuration #1 chosen from 1 choice [ 260.824491] /build/buildd/linux-source-2.6.22-2.6.22/drivers/usb/class/usblp.c: Disabling reads from problem bidirectional printer on usblp0 [ 260.832363] /build/buildd/linux-source-2.6.22-2.6.22/drivers/usb/class/usblp.c: usblp0: USB Unidirectional printer dev 6 if 0 alt 1 proto 2 vid 0x03F0 pid 0x0004 [ 492.805621] audit(1187874381.945:7): REJECTING m access to /etc/passwd (cupsd(6920) profile /usr/sbin/cupsd active /usr/sbin/cupsd) [ 492.806119] audit(1187874381.945:8): REJECTING m access to /etc/group (cupsd(6920) profile /usr/sbin/cupsd active /usr/sbin/cupsd) [ 492.806681] audit(1187874381.945:9): REJECTING m access to /etc/group (cupsd(6920) profile /usr/sbin/cupsd active /usr/sbin/cupsd) [ 757.963408] agpgart: Found an AGP 3.0 compliant device at 0000:00:00.0. [ 757.963427] agpgart: Putting AGP V3 device at 0000:00:00.0 into 8x mode [ 757.963457] agpgart: Putting AGP V3 device at 0000:01:00.0 into 8x mode [ 783.682002] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 783.682011] printing eip: [ 783.682014] c01c4add [ 783.682017] *pde = 00000000 [ 783.682021] Oops: 0000 [#2] [ 783.682024] SMP [ 783.682028] Modules linked in: af_packet binfmt_misc p4_clockmod capability lirc_dev ppdev ipv6 video sbs button dock container ac battery speedstep_lib cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_ondemand freq_table cpufreq_conservative dm_crypt fuse eeprom lm85 hwmon_vid i2c_isa i2c_i801 sbp2 lp snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_emu10k1 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss bt878 snd_pcm snd_page_alloc snd_util_mem snd_hwdep tuner snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi tvaudio parport_pc parport pcspkr usblp psmouse snd_seq_midi_event snd_seq snd_timer snd_seq_device bttv serio_raw video_buf ir_common nvidia(P) compat_ioctl32 i2c_algo_bit snd btcx_risc tveeprom videodev v4l2_common v4l1_compat bcm43xx emu10k1_gp i2c_core iTCO_wdt iTCO_vendor_support intel_agp soundcore ieee80211softmac ieee80211 ieee80211_crypt gameport agpgart shpchp pci_hotplug evdev usb_storage ide_core ext3 jbd mbcache usbhid hid libusual sg sd_mod sr_mod cdrom ata_piix e100 mii ohci1394 ieee1394 ehci_hcd ata_generic libata scsi_mod floppy uhci_hcd usbcore raid10 raid456 xor raid1 raid0 multipath linear md_mod dm_mirror dm_snapshot dm_mod thermal processor fan apparmor commoncap aamatch_pcre [ 783.682177] CPU: 1 [ 783.682178] EIP: 0060:[] Tainted: P VLI [ 783.682180] EFLAGS: 00210246 (2.6.22-10-generic #1) [ 783.682189] EIP is at sysfs_follow_link+0x12d/0x260 [ 783.682194] eax: 00000000 ebx: 00000001 ecx: ffffffff edx: ffffffff [ 783.682198] esi: 00000000 edi: 00000000 ebp: 00000003 esp: d1e49dd8 [ 783.682203] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [ 783.682208] Process restricted-mana (pid: 6104, ti=d1e48000 task=f77fca40 task.ti=d1e48000) [ 783.682212] Stack: f8e8c024 d1e49f04 d1ef5000 ffffffea f7664880 f8e8c024 dfff9000 f5929d20 [ 783.682224] 00000000 bccb37e1 f592a220 c018a124 0000000d d355c016 d1e49f04 d355c024 [ 783.682237] 00000001 00000000 df8fd880 c23afaa0 c018a375 d355c000 c23afaa0 00000000 [ 783.682249] Call Trace: [ 783.682305] [] __link_path_walk+0xc84/0xe70 [ 783.682352] [] link_path_walk+0x65/0xc0 [ 783.682416] [] link_path_walk+0x45/0xc0 [ 783.682490] [] sysfs_readdir+0xc0/0x1e0 [ 783.682543] [] do_path_lookup+0x73/0x1b0 [ 783.682558] [] getname+0xa7/0xd0 [ 783.682584] [] __user_walk_fd+0x3b/0x60 [ 783.682616] [] vfs_stat_fd+0x22/0x60 [ 783.682687] [] sysfs_readdir+0xc0/0x1e0 [ 783.682735] [] sys_stat64+0xf/0x30 [ 783.682767] [] sys_futex+0x97/0x100 [ 783.682797] [] filp_close+0x47/0x80 [ 783.682842] [] sysenter_past_esp+0x6b/0xa9 [ 783.682931] ======================= [ 783.682934] Code: ff 8b 44 24 10 8b 40 24 83 c5 01 85 c0 75 f6 8b 44 24 14 bb 01 00 00 00 31 f6 ba ff ff ff ff 89 04 24 8b 0c 24 89 f0 8b 39 89 d1 ae f7 d1 49 8d 5c 19 01 8b 0c 24 8b 49 24 85 c9 89 0c 24 75 [ 783.682994] EIP: [] sysfs_follow_link+0x12d/0x260 SS:ESP 0068:d1e49dd8 [ 877.804665] agpgart: Found an AGP 3.0 compliant device at 0000:00:00.0. [ 877.804683] agpgart: Putting AGP V3 device at 0000:00:00.0 into 8x mode [ 877.804713] agpgart: Putting AGP V3 device at 0000:01:00.0 into 8x mode [ 896.358251] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 896.358260] printing eip: [ 896.358263] c01c4add [ 896.358266] *pde = 00000000 [ 896.358270] Oops: 0000 [#3] [ 896.358272] SMP [ 896.358277] Modules linked in: af_packet binfmt_misc p4_clockmod capability lirc_dev ppdev ipv6 video sbs button dock container ac battery speedstep_lib cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_ondemand freq_table cpufreq_conservative dm_crypt fuse eeprom lm85 hwmon_vid i2c_isa i2c_i801 sbp2 lp snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_emu10k1 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss bt878 snd_pcm snd_page_alloc snd_util_mem snd_hwdep tuner snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi tvaudio parport_pc parport pcspkr usblp psmouse snd_seq_midi_event snd_seq snd_timer snd_seq_device bttv serio_raw video_buf ir_common nvidia(P) compat_ioctl32 i2c_algo_bit snd btcx_risc tveeprom videodev v4l2_common v4l1_compat bcm43xx emu10k1_gp i2c_core iTCO_wdt iTCO_vendor_support intel_agp soundcore ieee80211softmac ieee80211 ieee80211_crypt gameport agpgart shpchp pci_hotplug evdev usb_storage ide_core ext3 jbd mbcache usbhid hid libusual sg sd_mod sr_mod cdrom ata_piix e100 mii ohci1394 ieee1394 ehci_hcd ata_generic libata scsi_mod floppy uhci_hcd usbcore raid10 raid456 xor raid1 raid0 multipath linear md_mod dm_mirror dm_snapshot dm_mod thermal processor fan apparmor commoncap aamatch_pcre [ 896.358428] CPU: 0 [ 896.358429] EIP: 0060:[] Tainted: P VLI [ 896.358431] EFLAGS: 00210246 (2.6.22-10-generic #1) [ 896.358440] EIP is at sysfs_follow_link+0x12d/0x260 [ 896.358444] eax: 00000000 ebx: 00000001 ecx: ffffffff edx: ffffffff [ 896.358449] esi: 00000000 edi: 00000000 ebp: 00000003 esp: d1da5dd8 [ 896.358453] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [ 896.358458] Process restricted-mana (pid: 6690, ti=d1da4000 task=f6716f60 task.ti=d1da4000) [ 896.358462] Stack: f8e8c024 d1da5f04 d1c50000 ffffffea f7664880 f8e8c024 dfff9000 f5929d20 [ 896.358473] 00000000 bccb37e1 f592a220 c018a124 0000000d f7959016 d1da5f04 f7959024 [ 896.358483] 00000001 00000000 df8fd880 c23afaa0 c018a375 f7959000 c23afaa0 00000000 [ 896.358492] Call Trace: [ 896.358551] [] __link_path_walk+0xc84/0xe70 [ 896.358600] [] link_path_walk+0x65/0xc0 [ 896.358664] [] link_path_walk+0x45/0xc0 [ 896.358738] [] sysfs_readdir+0xc0/0x1e0 [ 896.358791] [] do_path_lookup+0x73/0x1b0 [ 896.358808] [] getname+0xa7/0xd0 [ 896.358833] [] __user_walk_fd+0x3b/0x60 [ 896.358865] [] vfs_stat_fd+0x22/0x60 [ 896.358937] [] sysfs_readdir+0xc0/0x1e0 [ 896.358986] [] sys_stat64+0xf/0x30 [ 896.359018] [] sys_futex+0x97/0x100 [ 896.359050] [] filp_close+0x47/0x80 [ 896.359095] [] sysenter_past_esp+0x6b/0xa9 [ 896.359187] ======================= [ 896.359189] Code: ff 8b 44 24 10 8b 40 24 83 c5 01 85 c0 75 f6 8b 44 24 14 bb 01 00 00 00 31 f6 ba ff ff ff ff 89 04 24 8b 0c 24 89 f0 8b 39 89 d1 ae f7 d1 49 8d 5c 19 01 8b 0c 24 8b 49 24 85 c9 89 0c 24 75 [ 896.359244] EIP: [] sysfs_follow_link+0x12d/0x260 SS:ESP 0068:d1da5dd8 [ 1097.924481] bttv0: PLL: 28636363 => 35468950 .. ok [ 6458.377664] usb 5-7: new high speed USB device using ehci_hcd and address 6 [ 6458.511433] usb 5-7: configuration #1 chosen from 1 choice [ 6458.512395] scsi5 : SCSI emulation for USB Mass Storage devices [ 6458.513772] usb-storage: device found at 6 [ 6458.513803] usb-storage: waiting for device to settle before scanning [ 6463.511231] usb-storage: device scan complete [ 6463.515049] scsi 5:0:0:0: Direct-Access WDC WD1200BB-00GUC0 08.0 PQ: 0 ANSI: 2 [ 6463.525702] sd 5:0:0:0: [sdg] 234441648 512-byte hardware sectors (120034 MB) [ 6463.526921] sd 5:0:0:0: [sdg] Write Protect is off [ 6463.526980] sd 5:0:0:0: [sdg] Mode Sense: 53 00 00 08 [ 6463.527004] sd 5:0:0:0: [sdg] Assuming drive cache: write through [ 6463.530171] sd 5:0:0:0: [sdg] 234441648 512-byte hardware sectors (120034 MB) [ 6463.531403] sd 5:0:0:0: [sdg] Write Protect is off [ 6463.531442] sd 5:0:0:0: [sdg] Mode Sense: 53 00 00 08 [ 6463.531486] sd 5:0:0:0: [sdg] Assuming drive cache: write through [ 6463.531517] sdg: sdg1 sdg2 [ 6463.555721] sd 5:0:0:0: [sdg] Attached SCSI disk [ 6463.556186] sd 5:0:0:0: Attached scsi generic sg8 type 0 [ 6465.751142] kjournald starting. Commit interval 5 seconds [ 6465.751150] EXT3-fs warning: maximal mount count reached, running e2fsck is recommended [ 6465.751737] EXT3 FS on sdg2, internal journal [ 6465.751747] EXT3-fs: mounted filesystem with ordered data mode. [ 6649.309292] bttv0: PLL can sleep, using XTAL (28636363). [ 6657.179198] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 6657.179207] printing eip: [ 6657.179210] c01c4add [ 6657.179213] *pde = 00000000 [ 6657.179218] Oops: 0000 [#4] [ 6657.179220] SMP [ 6657.179225] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat snd_rtctimer af_packet binfmt_misc p4_clockmod capability lirc_dev ppdev ipv6 video sbs button dock container ac battery speedstep_lib cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_ondemand freq_table cpufreq_conservative dm_crypt fuse eeprom lm85 hwmon_vid i2c_isa i2c_i801 sbp2 lp snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_emu10k1 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss bt878 snd_pcm snd_page_alloc snd_util_mem snd_hwdep tuner snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi tvaudio parport_pc parport pcspkr usblp psmouse snd_seq_midi_event snd_seq snd_timer snd_seq_device bttv serio_raw video_buf ir_common nvidia(P) compat_ioctl32 i2c_algo_bit snd btcx_risc tveeprom videodev v4l2_common v4l1_compat bcm43xx emu10k1_gp i2c_core iTCO_wdt iTCO_vendor_support intel_agp soundcore ieee80211softmac ieee80211 ieee80211_crypt gameport agpgart shpchp pci_hotplug evdev usb_storage ide_core ext3 jbd mbcache usbhid hid libusual sg sd_mod sr_mod cdrom ata_piix e100 mii ohci1394 ieee1394 ehci_hcd ata_generic libata scsi_mod floppy uhci_hcd usbcore raid10 raid456 xor raid1 raid0 multipath linear md_mod dm_mirror dm_snapshot dm_mod thermal processor fan apparmor commoncap aamatch_pcre [ 6657.179384] CPU: 1 [ 6657.179385] EIP: 0060:[] Tainted: P VLI [ 6657.179387] EFLAGS: 00210246 (2.6.22-10-generic #1) [ 6657.179395] EIP is at sysfs_follow_link+0x12d/0x260 [ 6657.179399] eax: 00000000 ebx: 00000001 ecx: ffffffff edx: ffffffff [ 6657.179403] esi: 00000000 edi: 00000000 ebp: 00000003 esp: d3479dd8 [ 6657.179407] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [ 6657.179412] Process restricted-mana (pid: 9506, ti=d3478000 task=d1e5ef60 task.ti=d3478000) [ 6657.179416] Stack: f8e8c024 d3479f04 c9e2f000 ffffffea f7664880 f8e8c024 dfff9000 f5929d20 [ 6657.179428] 00000000 bccb37e1 f592a220 c018a124 0000000d d0f02016 d3479f04 d0f02024 [ 6657.179439] 00000001 00000000 df8fd880 c23afaa0 c018a375 d0f02000 c23afaa0 00000000 [ 6657.179451] Call Trace: [ 6657.179511] [] __link_path_walk+0xc84/0xe70 [ 6657.179560] [] link_path_walk+0x65/0xc0 [ 6657.179625] [] link_path_walk+0x45/0xc0 [ 6657.179699] [] sysfs_readdir+0xc0/0x1e0 [ 6657.179753] [] do_path_lookup+0x73/0x1b0 [ 6657.179770] [] getname+0xa7/0xd0 [ 6657.179795] [] __user_walk_fd+0x3b/0x60 [ 6657.179825] [] vfs_stat_fd+0x22/0x60 [ 6657.179898] [] sysfs_readdir+0xc0/0x1e0 [ 6657.179946] [] sys_stat64+0xf/0x30 [ 6657.179976] [] sys_futex+0x97/0x100 [ 6657.180007] [] filp_close+0x47/0x80 [ 6657.180053] [] sysenter_past_esp+0x6b/0xa9 [ 6657.180146] ======================= [ 6657.180149] Code: ff 8b 44 24 10 8b 40 24 83 c5 01 85 c0 75 f6 8b 44 24 14 bb 01 00 00 00 31 f6 ba ff ff ff ff 89 04 24 8b 0c 24 89 f0 8b 39 89 d1 ae f7 d1 49 8d 5c 19 01 8b 0c 24 8b 49 24 85 c9 89 0c 24 75 [ 6657.180208] EIP: [] sysfs_follow_link+0x12d/0x260 SS:ESP 0068:d3479dd8 ------------------------------------8<-----------------------------------------