Re: [git pull] drm for 4.3

From: Dave Jones <davej@codemonkey.org.uk>
To: Dave Airlie <airlied@linux.ie>
Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	DRI mailing list <dri-devel@lists.freedesktop.org>,
	Daniel Vetter <daniel.vetter@intel.com>,
	torvalds@linux-foundation.org
Subject: Re: [git pull] drm for 4.3
Date: Mon, 7 Sep 2015 14:45:59 -0400	[thread overview]
Message-ID: <20150907184559.GA18393@codemonkey.org.uk> (raw)
In-Reply-To: <alpine.DEB.2.00.1509042337590.19786@skynet.skynet.ie>

On Fri, Sep 04, 2015 at 11:40:53PM +0100, Dave Airlie wrote:
 > 
 > Hi Linus,
 > 
 > This is the main pull request for the drm for 4.3. Nouveau is probably the biggest
 > amount of changes in here, since it missed 4.2. Highlights below, along with the usual
 > bunch of fixes. There are a few minor conflicts with your tree but nothing 
 > you can't handle. All stuff outside drm should have applicable acks.
 > 
 > Highlights:
 > 
 > ...
 > i915:
 > 	Skylake support enabled by default
 > 	legacy modesetting using atomic infrastructure
 > 	Skylake fixes
 > 	GEN9 workarounds

Since this merge, I'm seeing this twice during boot..

------------[ cut here ]------------
WARNING: CPU: 0 PID: 6 at drivers/gpu/drm/i915/intel_display.c:1377 assert_planes_disabled+0xdf/0x140()
plane A assertion failure, should be disabled but not
CPU: 0 PID: 6 Comm: kworker/u8:0 Not tainted 4.2.0-think+ #9
Workqueue: events_unbound async_run_entry_fn
 0000000000000561 ffff88050392b6f8 ffffffff8d7dccce ffff88050392b740
 ffff88050392b730 ffffffff8d079ee2 ffff880500a60000 0000000000000000
 0000000000000000 0000000000000000 ffff8805008e99c8 ffff88050392b790
Call Trace:
 [<ffffffff8d7dccce>] dump_stack+0x4e/0x79
 [<ffffffff8d079ee2>] warn_slowpath_common+0x82/0xc0
 [<ffffffff8d079f6c>] warn_slowpath_fmt+0x4c/0x50
 [<ffffffff8d4ee6ff>] assert_planes_disabled+0xdf/0x140
 [<ffffffff8d4f7b5b>] intel_disable_pipe+0x4b/0x2c0
 [<ffffffff8d4f7e5a>] haswell_crtc_disable+0x8a/0x2e0
 [<ffffffff8d500e7f>] intel_atomic_commit+0xff/0x1320
 [<ffffffff8d4885be>] ? drm_atomic_check_only+0x21e/0x550
 [<ffffffff8d488927>] drm_atomic_commit+0x37/0x60
 [<ffffffff8d463c95>] drm_atomic_helper_set_config+0x1c5/0x430
 [<ffffffff8d477c95>] drm_mode_set_config_internal+0x65/0x110
 [<ffffffff8d4666fe>] restore_fbdev_mode+0xbe/0xe0
 [<ffffffff8d468565>] drm_fb_helper_restore_fbdev_mode_unlocked+0x25/0x70
 [<ffffffff8d4685dd>] drm_fb_helper_set_par+0x2d/0x50
 [<ffffffff8d517a1a>] intel_fbdev_set_par+0x1a/0x60
 [<ffffffff8d3aeb45>] fbcon_init+0x545/0x5d0
 [<ffffffff8d42d68a>] visual_init+0xca/0x130
 [<ffffffff8d42f495>] do_bind_con_driver+0x1c5/0x3b0
 [<ffffffff8d42f9b9>] do_take_over_console+0x149/0x1a0
 [<ffffffff8d3aa9e7>] do_fbcon_takeover+0x57/0xb0
 [<ffffffff8d3af5ec>] fbcon_event_notify+0x66c/0x760
 [<ffffffff8d09e06e>] notifier_call_chain+0x3e/0xb0
 [<ffffffff8d09e26d>] __blocking_notifier_call_chain+0x4d/0x70
 [<ffffffff8d09e2a6>] blocking_notifier_call_chain+0x16/0x20
 [<ffffffff8d3b4d8b>] fb_notifier_call_chain+0x1b/0x20
 [<ffffffff8d3b7097>] register_framebuffer+0x1e7/0x300
 [<ffffffff8d468852>] drm_fb_helper_initial_config+0x252/0x3e0
 [<ffffffff8d5184cb>] intel_fbdev_initial_config+0x1b/0x20
 [<ffffffff8d0a02fa>] async_run_entry_fn+0x4a/0x140
 [<ffffffff8d09645d>] process_one_work+0x1fd/0x670
 [<ffffffff8d0963cc>] ? process_one_work+0x16c/0x670
 [<ffffffff8d09691e>] worker_thread+0x4e/0x450
 [<ffffffff8d0968d0>] ? process_one_work+0x670/0x670
 [<ffffffff8d09ccc1>] kthread+0x101/0x120
 [<ffffffff8d09cbc0>] ? kthread_create_on_node+0x250/0x250
 [<ffffffff8d7e764f>] ret_from_fork+0x3f/0x70
 [<ffffffff8d09cbc0>] ? kthread_create_on_node+0x250/0x250
---[ end trace 54cab2e0c772d5d9 ]---

00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3 Processor Integrated Graphics Controller (rev 06)

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