[BUG] ODEBUG: assert_init not available (active state 0)

[Chris Bainbridge]

v4.5-rc2.
Macbook 2012 (IVB).

ODEBUG reports an error or two at shutdown. Apart from the ODEBUG
error(s), this bug also seems to cause some graphical corruption when
typing in Firefox text fields.


efaed9be998b5ae0afb7458e057e5f4402b43fa0 is the first bad commit
commit efaed9be998b5ae0afb7458e057e5f4402b43fa0
Author: Lv Zheng <lv.zheng@xxxxxxxxx>
Date:   Tue Dec 29 14:03:08 2015 +0800

    ACPICA: Events: Enhance acpi_ev_execute_reg_method() to ensure no _REG evaluations can happen during OS early boot stages
    
    ACPICA commit 31178590dde82368fdb0f6b0e466b6c0add96c57
    
    We can ensure no early _REG evaluations by ensuring the following rules in
    acpi_ev_execute_reg_method():
    1. If an address space handler is installed during early stage,
       _REG(CONNECT) evaluations are blocked. This is achieved using
       acpi_gbl_reg_methods_enabled which is renamed from
       acpi_gbl_reg_methods_executed.
    2. If _REG(CONNECT) has never been evalauted for the region object,
       _REG(DISCONNECT) evaluations are blocked. This is achieved by a new
       region object flag: AOPOBJ_REG_CONNECTED.
    Note that, after applying this patch, we can ensure _REG(DISCONNECT) is
    always paired to _REG(CONNECT). Lv Zheng
    
    Link: https://github.com/acpica/acpica/commit/31178590
    Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
    Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

:040000 040000 357c50e20ee06ad557c77a2a03d09719dae9dc52 3e0610826dc9cb86454baf06de9392aa31e0aa91 M	drivers


[   34.512758] ------------[ cut here ]------------
[   34.512765] WARNING: CPU: 0 PID: 4975 at lib/debugobjects.c:263 debug_print_object+0x85/0xa0()
[   34.512770] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: stub_timer+0x0/0x20
[   34.512772] Modules linked in:
[   34.512774] CPU: 0 PID: 4975 Comm: systemd Not tainted 4.4.0-rc7+ #353
[   34.512776] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B0A.1509130955 09/13/2015
[   34.512779]  ffffffff81f9b41c ffff880227a1bdb0 ffffffff814ec829 ffff880227a1bdf8
[   34.512782]  ffff880227a1bde8 ffffffff810cd831 ffff880227a1be90 ffffffff822514c0
[   34.512785]  ffffffff81f9b4c2 ffffffff8327e288 00007f29190ba700 ffff880227a1be48
[   34.512786] Call Trace:
[   34.512790]  [<ffffffff814ec829>] dump_stack+0x4b/0x72
[   34.512793]  [<ffffffff810cd831>] warn_slowpath_common+0x81/0xc0
[   34.512795]  [<ffffffff810cd8b7>] warn_slowpath_fmt+0x47/0x50
[   34.512798]  [<ffffffff811398c2>] ? do_init_timer+0x52/0x60
[   34.512800]  [<ffffffff8150a015>] debug_print_object+0x85/0xa0
[   34.512802]  [<ffffffff81139830>] ? trace_event_raw_event_tick_stop+0x100/0x100
[   34.512805]  [<ffffffff8150ac38>] debug_object_assert_init+0xf8/0x130
[   34.512807]  [<ffffffff8111a5bd>] ? trace_hardirqs_on+0xd/0x10
[   34.512810]  [<ffffffff8113afdf>] del_timer+0x1f/0x70
[   34.512813]  [<ffffffff811c2331>] laptop_sync_completion+0x61/0x100
[   34.512815]  [<ffffffff811c22d0>] ? laptop_io_completion+0x30/0x30
[   34.512819]  [<ffffffff812569cf>] sys_sync+0x7f/0x90
[   34.512824]  [<ffffffff81b88e17>] entry_SYSCALL_64_fastpath+0x12/0x6f
[   34.512825] ---[ end trace 8fe52cbaccc47e66 ]---
[   34.512830] ------------[ cut here ]------------
[   34.512833] WARNING: CPU: 0 PID: 4975 at lib/debugobjects.c:263 debug_print_object+0x85/0xa0()
[   34.512835] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: stub_timer+0x0/0x20
[   34.512836] Modules linked in:
[   34.512838] CPU: 0 PID: 4975 Comm: systemd Tainted: G        W       4.4.0-rc7+ #353
[   34.512839] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B0A.1509130955 09/13/2015
[   34.512842]  ffffffff81f9b41c ffff880227a1bdb0 ffffffff814ec829 ffff880227a1bdf8
[   34.512845]  ffff880227a1bde8 ffffffff810cd831 ffff880227a1be90 ffffffff822514c0
[   34.512847]  ffffffff81f9b4c2 ffffffff8331f388 00007f29190ba700 ffff880227a1be48
[   34.512848] Call Trace:
[   34.512850]  [<ffffffff814ec829>] dump_stack+0x4b/0x72
[   34.512853]  [<ffffffff810cd831>] warn_slowpath_common+0x81/0xc0
[   34.512855]  [<ffffffff810cd8b7>] warn_slowpath_fmt+0x47/0x50
[   34.512857]  [<ffffffff811398c2>] ? do_init_timer+0x52/0x60
[   34.512859]  [<ffffffff8150a015>] debug_print_object+0x85/0xa0
[   34.512861]  [<ffffffff81139830>] ? trace_event_raw_event_tick_stop+0x100/0x100
[   34.512864]  [<ffffffff8150ac38>] debug_object_assert_init+0xf8/0x130
[   34.512865]  [<ffffffff8111a5bd>] ? trace_hardirqs_on+0xd/0x10
[   34.512868]  [<ffffffff8113afdf>] del_timer+0x1f/0x70
[   34.512869]  [<ffffffff811c2331>] laptop_sync_completion+0x61/0x100
[   34.512871]  [<ffffffff811c22d0>] ? laptop_io_completion+0x30/0x30
[   34.512873]  [<ffffffff812569cf>] sys_sync+0x7f/0x90
[   34.512876]  [<ffffffff81b88e17>] entry_SYSCALL_64_fastpath+0x12/0x6f
[   34.512877] ---[ end trace 8fe52cbaccc47e67 ]---