same oops with 2.6.22-14-generic:
[80692.172000] BUG: unable to handle kernel NULL pointer dereference at virtual
address 00000000
[80692.172000] printing eip:
[80692.172000] 00000000
[80692.172000] *pde = 00000000
[80692.172000] Oops: 0000 [#1]
[80692.172000] SMP
[80692.172000] Modules linked in: battery ac thermal fan button ipw3945
ieee80211 tg3 sr_mod cdrom usb_storage ide_core usbhid hid libusual ipt_TOS
xt_tcpudp iptable_mangle ip_tables x_tables ipv6 michael_mic arc4 ecb blkcipher
ieee80211_crypt_tkip aes ieee80211_crypt_ccmp af_packet i915 drm binfmt_misc
rfcomm l2cap ppdev sbs video container dock acpi_cpufreq cpufreq_powersave
cpufreq_userspace cpufreq_conservative cpufreq_ondemand cpufreq_stats
freq_table sbp2 parport_pc lp parport snd_hda_intel joydev snd_pcm_oss
snd_mixer_oss pcmcia snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi
yenta_socket snd_seq_midi_event rsrc_nonstatic sdhci serio_raw pcmcia_core
hci_usb bluetooth ieee80211_crypt mmc_core snd_seq snd_timer iTCO_wdt
iTCO_vendor_support pcspkr psmouse snd_seq_device snd soundcore snd_page_alloc
shpchp pci_hotplug intel_agp agpgart evdev ext3 jbd mbcache sg sd_mod
ata_generic ohci1394 ieee1394 ehci_hcd ata_piix libata scsi_mod uhci_hcd
usbcore processor fuse appa
mor commoncap
[80692.172000] CPU: 0
[80692.172000] EIP: 0060:[<00000000>] Not tainted VLI
[80692.172000] EFLAGS: 00010286 (2.6.22-14-generic #1)
[80692.172000] EIP is at 0x0
[80692.172000] eax: df83cd98 ebx: e90dfbb8 ecx: 00000000 edx: 00000080
[80692.172000] esi: da2778d0 edi: c021ae96 ebp: df88c184 esp: df8cbf74
[80692.172000] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068
[80692.172000] Process kacpi_notify (pid: 34, ti=df8ca000 task=df8bb4c0
task.ti=df8ca000)
[80692.172000] Stack: c0220636 dff66980 dff66988 c021aeb8 dfed0868 df88c180
c0138331 00000000
[80692.172000] 000000ff 00000246 c013bf80 df88c18c df88c180 c0138d30
00000000 c0138dd0
[80692.172000] 00000000 df8bb4c0 c013bdd0 df8cbfc0 df8cbfc0 fffffffc
df88c180 c0138d30
[80692.172000] Call Trace:
[80692.172000] [acpi_ev_notify_dispatch+76/85]
acpi_ev_notify_dispatch+0x4c/0x55
[80692.172000] [acpi_os_execute_notify+34/43] acpi_os_execute_notify+0x22/0x2b
[80692.172000] [run_workqueue+129/272] run_workqueue+0x81/0x110
[80692.172000] [prepare_to_wait+32/112] prepare_to_wait+0x20/0x70
[80692.172000] [worker_thread+0/256] worker_thread+0x0/0x100
[80692.172000] [worker_thread+160/256] worker_thread+0xa0/0x100
[80692.172000] [autoremove_wake_function+0/80]
autoremove_wake_function+0x0/0x50
[80692.172000] [worker_thread+0/256] worker_thread+0x0/0x100
[80692.172000] [kthread+66/112] kthread+0x42/0x70
[80692.172000] [kthread+0/112] kthread+0x0/0x70
[80692.172000] [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10
[80692.172000] =======================
[80692.172000] Code: Bad EIP value.
[80692.172000] EIP: [<00000000>] 0x0 SS:ESP 0068:df8cbf74
** Also affects: linux-source-2.6.22 (Ubuntu)
Importance: Undecided
Status: New
--
hard lock during updates
https://bugs.launchpad.net/bugs/106228
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