[Bug 91429] [HSW] WARNING: plane A assertion failure, should be disabled but not

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91429

--- Comment #1 from Andreas Reis <andreas.reis at gmail.com> ---
Trace as of drm-intel-nightly: 2015y-08m-19d-08h-17m-47s

[    0.962477] WARNING: CPU: 0 PID: 6 at
drivers/gpu/drm/i915/intel_display.c:1374 assert_planes_disabled+0xe5/0x140()
[    0.962478] plane A assertion failure, should be disabled but not
[    0.962479] Modules linked in:
[    0.962481] CPU: 0 PID: 6 Comm: kworker/u16:0 Tainted: G        W      
4.2.0-1-cu #1
[    0.962482] Hardware name: Gigabyte Technology Co., Ltd. G1.Sniper
M5/G1.Sniper M5, BIOS T01 02/03/2015
[    0.962487] Workqueue: events_unbound async_run_entry_fn
[    0.962488]  0000000000000000 0000000017102c1e ffff88041d2c3688
ffffffff81941f98
[    0.962489]  0000000000000000 ffff88041d2c36e0 ffff88041d2c36c8
ffffffff810e5386
[    0.962489]  0000000100000000 ffff88041b6b0000 0000000000000000
0000000000000000
[    0.962490] Call Trace:
[    0.962493]  [<ffffffff81941f98>] dump_stack+0x4c/0x6e
[    0.962497]  [<ffffffff810e5386>] warn_slowpath_common+0x86/0xc0
[    0.962498]  [<ffffffff810e5415>] warn_slowpath_fmt+0x55/0x70
[    0.962499]  [<ffffffff8161fd45>] assert_planes_disabled+0xe5/0x140
[    0.962501]  [<ffffffff81629d4b>] intel_disable_pipe+0x4b/0x2a0
[    0.962502]  [<ffffffff8162a02a>] haswell_crtc_disable+0x8a/0x2e0
[    0.962504]  [<ffffffff81632837>] intel_atomic_commit+0x127/0x1390
[    0.962507]  [<ffffffff815b842e>] ? drm_atomic_check_only+0x21e/0x550
[    0.962507]  [<ffffffff815b805d>] ?
drm_atomic_get_connector_state+0x4d/0x110
[    0.962508]  [<ffffffff815b8797>] drm_atomic_commit+0x37/0x60
[    0.962511]  [<ffffffff815944b7>] drm_atomic_helper_set_config+0x1c7/0x430
[    0.962513]  [<ffffffff815a7186>] drm_mode_set_config_internal+0x66/0x100
[    0.962515]  [<ffffffff81596552>] restore_fbdev_mode+0xc2/0xf0
[    0.962516]  [<ffffffff815984d9>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x70
[    0.962516]  [<ffffffff81598551>] drm_fb_helper_set_par+0x31/0x60
[    0.962518]  [<ffffffff816493da>] intel_fbdev_set_par+0x1a/0x60
[    0.962520]  [<ffffffff814df0a0>] fbcon_init+0x540/0x5c0
[    0.962521]  [<ffffffff8155ff8e>] visual_init+0xce/0x130
[    0.962522]  [<ffffffff81561ace>] do_bind_con_driver+0x1be/0x3e0
[    0.962524]  [<ffffffff81562029>] do_take_over_console+0x149/0x1a0
[    0.962525]  [<ffffffff8193fd83>] ? printk+0x55/0x6b
[    0.962526]  [<ffffffff814df177>] do_fbcon_takeover+0x57/0xb0
[    0.962527]  [<ffffffff814e3393>] fbcon_event_notify+0x663/0x760
[    0.962528]  [<ffffffff811035be>] notifier_call_chain+0x4e/0x80
[    0.962529]  [<ffffffff8110397b>] __blocking_notifier_call_chain+0x4b/0x70
[    0.962530]  [<ffffffff811039b6>] blocking_notifier_call_chain+0x16/0x20
[    0.962531]  [<ffffffff814e911b>] fb_notifier_call_chain+0x1b/0x20
[    0.962532]  [<ffffffff814eb1f5>] register_framebuffer+0x215/0x350
[    0.962533]  [<ffffffff815987df>] drm_fb_helper_initial_config+0x25f/0x410
[    0.962534]  [<ffffffff81649e3b>] intel_fbdev_initial_config+0x1b/0x20
[    0.962535]  [<ffffffff811050dc>] async_run_entry_fn+0x4c/0x160
[    0.962537]  [<ffffffff810fccbe>] process_one_work+0x14e/0x440
[    0.962538]  [<ffffffff810fcff8>] worker_thread+0x48/0x4a0
[    0.962539]  [<ffffffff810fcfb0>] ? process_one_work+0x440/0x440
[    0.962540]  [<ffffffff81102958>] kthread+0xd8/0xf0
[    0.962541]  [<ffffffff81102880>] ? kthread_worker_fn+0x170/0x170
[    0.962542]  [<ffffffff81948d5f>] ret_from_fork+0x3f/0x70
[    0.962543]  [<ffffffff81102880>] ? kthread_worker_fn+0x170/0x170

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