Re: 2.6.24-git9 ACPI oops - regression

["Rafael J. Wysocki" <rjw@sisk.pl>]

[Relevant CCs added.]

On Friday, 1 of February 2008, Lukas Hejtmanek wrote:
> Hello,
> 
> I encountered oops on my laptop Lenovo T61 and dock. If I press undock on the
> dock, I got the following oops:
> 
> [79721.755165] BUG: unable to handle kernel paging request at 000000340000000e
> [79721.755165] IP: [<ffffffff8034d147>] acpi_ns_map_handle_to_node+0x14/0x1d
> [79721.755165] PGD 7203a067 PUD 0
> [79721.755165] Oops: 0000 [1] SMP
> [79721.755165] CPU 1
> [79721.755165] Modules linked in: usb_storage i915 drm rfcomm l2cap bluetooth fuse arc4 ecb crypto_blkcipher ehci_hcd uhci_hcd e1000e snd_hda_intel intel_agp thinkpad_acpi [last unloaded: cfg80211]
> [79721.755165] Pid: 69, comm: kacpi_notify Not tainted 2.6.24-git9 #4
> [79721.755165] RIP: 0010:[<ffffffff8034d147>]  [<ffffffff8034d147>] acpi_ns_map_handle_to_node+0x14/0x1d
> [79721.755165] RSP: 0018:ffff81007d197d28  EFLAGS: 00010246
> [79721.755165] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
> [79721.755165] RDX: 0000000000017567 RSI: 000000100002c0d0 RDI: 0000003400000006
> [79721.755165] RBP: 0000000000000000 R08: ffff810003c00000 R09: 0000000000000000
> [79721.755165] R10: 0000000000000002 R11: 0000000000000001 R12: 0000003400000006
> [79721.755165] R13: 0000000000000000 R14: ffff81007d197d68 R15: ffff81007d197d70
> [79721.755165] FS:  0000000000000000(0000) GS:ffff81007d00e380(0000) knlGS:0000000000000000
> [79721.755165] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> [79721.755165] CR2: 000000340000000e CR3: 000000007200a000 CR4: 00000000000006a0
> [79721.755165] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [79721.755165] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [79721.755165] Process kacpi_notify (pid: 69, threadinfo ffff81007d196000, task ffff81007d18ef20)
> [79721.755165] Stack:  ffffffff8034e19f ffff8100519e8800 ffff81007d197de0 0000000000000001
> [79721.755165]  0000000000000000 0000000000000001 ffffffff80357d3d ffff81007d02cdc0
> [79721.755165]  0000000000000000 0000003400000006 0000000000000000 ffffffff8058cbaa
> [79721.755165] Call Trace:
> [79721.755165]  [<ffffffff8034e19f>] acpi_get_next_object+0x3b/0x99
> [79721.755165]  [<ffffffff80357d3d>] acpi_bus_trim+0x57/0x109
> [79721.755165]  [<ffffffff8035b28b>] hotplug_dock_devices+0x97/0x117
> [79721.755166]  [<ffffffff8035b3a9>] handle_eject_request+0x4e/0xd3
> [79721.755166]  [<ffffffff8033e04a>] acpi_os_execute_notify+0x0/0x2c
> [79721.755166]  [<ffffffff80356088>] acpi_bus_get_device+0x1d/0x2e
> [79721.755166]  [<ffffffff803560b0>] acpi_bus_notify+0x17/0x4c
> [79721.755166]  [<ffffffff8033e04a>] acpi_os_execute_notify+0x0/0x2c
> [79721.755166]  [<ffffffff80343a1d>] acpi_ev_notify_dispatch+0x57/0x60
> [79721.755166]  [<ffffffff8033e06d>] acpi_os_execute_notify+0x23/0x2c
> [79721.755166]  [<ffffffff802460bf>] run_workqueue+0xbf/0x160
> [79721.755166]  [<ffffffff80246b00>] worker_thread+0x0/0x100
> [79721.755166]  [<ffffffff80246b00>] worker_thread+0x0/0x100
> [79721.755166]  [<ffffffff80246b9f>] worker_thread+0x9f/0x100
> [79721.755166]  [<ffffffff80249e50>] autoremove_wake_function+0x0/0x30
> [79721.755166]  [<ffffffff80246b00>] worker_thread+0x0/0x100
> [79721.755166]  [<ffffffff80246b00>] worker_thread+0x0/0x100
> [79721.755166]  [<ffffffff80249a4b>] kthread+0x4b/0x80
> [79721.755166]  [<ffffffff8020d128>] child_rip+0xa/0x12
> [79721.755166]  [<ffffffff80249a00>] kthread+0x0/0x80
> [79721.755166]  [<ffffffff8020d11e>] child_rip+0x0/0x12
> [79721.755166]
> [79721.755166]
> [79721.755166] Code: 00 c3 49 ff c1 48 83 c6 04 41 ff c8 45 85 c0 75 a8 31 c0 c6 06 00 c3 48 8d 47 ff 48 83 f8 fd 76 08 48 8b 05 dc 49 39 00 c3 31 c0 <80> 7f 08 0f 48 0f 44 c7 c3 48 89 f8 c3 31 c0 48 85 ff 74 0d f6
> [79721.755166] RIP  [<ffffffff8034d147>] acpi_ns_map_handle_to_node+0x14/0x1d
> [79721.755166]  RSP <ffff81007d197d28>
> [79721.755166] CR2: 000000340000000e
> [79721.755166] ---[ end trace 05a1f30122eb8809 ]---
>