I just got an oops (on 2.6.24.2 + thinkpad-acpi 20080213) at unloading thinkpad-acpi (with video.c loaded): Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: [<0000000000000000>] _stext+0x7fdf7000/0x1a PGD aec9c067 PUD aec9d067 PMD 0 Oops: 0010 [1] SMP CPU 0 Modules linked in: video output uhci_hcd i915 drm rfcomm l2cap bluetooth cpufreq_conservative cpufreq_powersave cpufreq_userspace cpufreq_stats ip6t_LOG nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 ipt_addrtype xt_tcpudp ipt_LOG nf_conntrack_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables fuse coretemp uinput cpufreq_ondemand acpi_cpufreq freq_table loop arc4 ecb pcmcia snd_hda_intel snd_pcm_oss snd_mixer_oss battery ac snd_pcm iwl4965 snd_timer yenta_socket rsrc_nonstatic firmware_class pcmcia_core mac80211 snd serio_raw button soundcore snd_page_alloc cfg80211 iTCO_wdt i2c_i801 psmouse evdev ext3 jbd mbcache sha256_generic aes_generic aes_x86_64 cbc blkcipher dm_crypt dm_mirror dm_snapshot dm_mod sg sr_mod cdrom piix ide_core sd_mod ata_piix ahci libata scsi_mod ehci_hcd e1000 thermal processor fan Pid: 53, comm: kacpi_notify Not tainted 2.6.24.2 #1 RIP: 0010:[<0000000000000000>] [<0000000000000000>] _stext +0x7fdf7000/0x1a RSP: 0018:ffff8100bb7e1e88 EFLAGS: 00010282 RAX: ffff8100b9290e20 RBX: ffff81007635c6e0 RCX: ffff8100b9100080 RDX: 0000000000000000 RSI: 0000000000000080 RDI: ffff8100bb661230 RBP: ffffffff8032c02b R08: ffff8100b9b7a058 R09: ffff8100b9b7a000 R10: 000000000000007f R11: 0000000000000000 R12: ffff8100bb6cb748 R13: ffffffffffffffff R14: ffffffff80579c50 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffffffff80514000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000000 CR3: 00000000b4495000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kacpi_notify (pid: 53, threadinfo ffff8100bb7e0000, task ffff8100bb7c1850) Stack: ffffffff80331a01 ffff8100b910ec40 ffffffff8032c04e ffff8100bb6cb740 ffffffff80245afc ffff8100bb6cb740 ffff8100bb6cb748 ffff8100bb6cb758 ffffffff80246513 0000000000000000 ffff8100bb7c1850 ffffffff802494df Call Trace: [<ffffffff80331a01>] acpi_ev_notify_dispatch+0x57/0x60 [<ffffffff8032c04e>] acpi_os_execute_notify+0x23/0x2c [<ffffffff80245afc>] run_workqueue+0x7d/0x10c [<ffffffff80246513>] worker_thread+0xe1/0xf0 [<ffffffff802494df>] autoremove_wake_function+0x0/0x2e [<ffffffff80246432>] worker_thread+0x0/0xf0 [<ffffffff802493b7>] kthread+0x47/0x74 [<ffffffff8020cd18>] child_rip+0xa/0x12 [<ffffffff80249370>] kthread+0x0/0x74 [<ffffffff8020cd0e>] child_rip+0x0/0x12 Code: Bad RIP value. RIP [<0000000000000000>] _stext+0x7fdf7000/0x1a RSP <ffff8100bb7e1e88> CR2: 0000000000000000 ---[ end trace eb80d845a6a94d99 ]--- -- Yves-Alexis
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