linux-kernel - [i915]] *ERROR* mismatch in scaler_state.scaler

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Date:	Sat, 2 May 2015 10:05:42 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:	David Airlie <airlied@...ux.ie>
Cc:	Daniel Vetter <daniel.vetter@...el.com>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [i915]] *ERROR* mismatch in scaler_state.scaler_id

Hi,

linux-next 20150501

[    1.968953] [drm:check_crtc_state [i915]] *ERROR* mismatch in scaler_state.scaler_id (expected 0, found -1)
[    1.968953] ------------[ cut here ]------------
[    1.968983] WARNING: CPU: 0 PID: 6 at drivers/gpu/drm/i915/intel_display.c:12008 check_crtc_state+0xb15/0xb83 [i915]()
[    1.968983] pipe state doesn't match!
[..]
[    1.969005] CPU: 0 PID: 6 Comm: kworker/u16:0 Not tainted 4.1.0-rc1-next-20150501-dbg-00011-gbcb7bed-dirty #49
[    1.969010] Workqueue: events_unbound async_run_entry_fn
[    1.969012]  0000000000000009 ffff88041d9eb448 ffffffff812e9753 0000000000005555
[    1.969013]  ffff88041d9eb498 ffff88041d9eb488 ffffffff81034c24 ffff88041d9eb490
[    1.969015]  ffffffffa03a81dc ffff88041d123000 ffff88041cbbc800 0000000000000001
[    1.969015] Call Trace:
[    1.969019]  [<ffffffff812e9753>] dump_stack+0x45/0x57
[    1.969022]  [<ffffffff81034c24>] warn_slowpath_common+0x97/0xb1
[    1.969050]  [<ffffffffa03a81dc>] ? check_crtc_state+0xb15/0xb83 [i915]
[    1.969052]  [<ffffffff81034c7f>] warn_slowpath_fmt+0x41/0x43
[    1.969080]  [<ffffffffa03a81dc>] check_crtc_state+0xb15/0xb83 [i915]
[    1.969082]  [<ffffffff81054941>] ? update_curr+0x68/0xd1
[    1.969112]  [<ffffffffa03b6ab6>] intel_modeset_check_state+0x603/0xa3d [i915]
[    1.969140]  [<ffffffffa03b7db5>] intel_crtc_set_config+0x8dc/0xc02 [i915]
[    1.969147]  [<ffffffffa0310d51>] ? drm_atomic_helper_plane_set_property+0x6c/0xa4 [drm_kms_helper]
[    1.969159]  [<ffffffffa02688d2>] drm_mode_set_config_internal+0x57/0xe3 [drm]
[    1.969164]  [<ffffffffa03122fa>] restore_fbdev_mode+0xb5/0xcf [drm_kms_helper]
[    1.969169]  [<ffffffffa0313bb3>] drm_fb_helper_restore_fbdev_mode_unlocked+0x22/0x59 [drm_kms_helper]
[    1.969173]  [<ffffffffa0313c1b>] drm_fb_helper_set_par+0x31/0x35 [drm_kms_helper]
[    1.969202]  [<ffffffffa03c4151>] intel_fbdev_set_par+0x15/0x58 [i915]
[    1.969204]  [<ffffffff811a3577>] fbcon_init+0x323/0x431
[    1.969206]  [<ffffffff811ef80a>] visual_init+0xb7/0x10d
[    1.969208]  [<ffffffff811f0e26>] do_bind_con_driver+0x1b1/0x2d8
[    1.969209]  [<ffffffff811f124f>] do_take_over_console+0x15a/0x184
[    1.969212]  [<ffffffff811a15e7>] do_fbcon_takeover+0x5b/0x97
[    1.969213]  [<ffffffff811a4dc5>] fbcon_event_notify+0x419/0x740
[    1.969215]  [<ffffffff810492cc>] notifier_call_chain+0x3b/0x5f
[    1.969217]  [<ffffffff8104950a>] __blocking_notifier_call_chain+0x43/0x5f
[    1.969219]  [<ffffffff81049535>] blocking_notifier_call_chain+0xf/0x11
[    1.969220]  [<ffffffff811a68f8>] fb_notifier_call_chain+0x16/0x18
[    1.969222]  [<ffffffff811a8134>] register_framebuffer+0x28f/0x2c7
[    1.969250]  [<ffffffffa03c45a3>] ? intelfb_create+0x2e7/0x38a [i915]
[    1.969256]  [<ffffffffa0313eb6>] drm_fb_helper_initial_config+0x297/0x3e1 [drm_kms_helper]
[    1.969284]  [<ffffffffa03c4a9a>] intel_fbdev_initial_config+0x16/0x18 [i915]
[    1.969286]  [<ffffffff8104a177>] async_run_entry_fn+0x33/0xca
[    1.969288]  [<ffffffff8104408c>] process_one_work+0x192/0x2a8
[    1.969290]  [<ffffffff81044be8>] worker_thread+0x266/0x34c
[    1.969291]  [<ffffffff81044982>] ? rescuer_thread+0x276/0x276
[    1.969293]  [<ffffffff81048908>] kthread+0xcd/0xd5
[    1.969294]  [<ffffffff8104883b>] ? kthread_worker_fn+0x130/0x130
[    1.969296]  [<ffffffff812ed5c2>] ret_from_fork+0x42/0x70
[    1.969297]  [<ffffffff8104883b>] ? kthread_worker_fn+0x130/0x130
[    1.969298] ---[ end trace 7f37d8e5ab4ee0a8 ]---

	-ss
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