linux-kernel - Re: [git pull] fbcon locking fixes.

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Message-ID: <CAKMK7uGR+wd6DR561WC_q20WZvf4ytO-wKUk0zKKtxrcc6M43A@mail.gmail.com>
Date:	Wed, 30 Jan 2013 12:59:22 +0100
From:	Daniel Vetter <daniel@...ll.ch>
To:	Maarten Lankhorst <maarten.lankhorst@...onical.com>
Cc:	Dave Airlie <airlied@...il.com>, m.b.lankhorst@...il.com,
	"linux-fbdev@...r.kernel.org" <linux-fbdev@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	DRI mailing list <dri-devel@...ts.freedesktop.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [git pull] fbcon locking fixes.

On Mon, Jan 28, 2013 at 1:45 PM, Maarten Lankhorst
<maarten.lankhorst@...onical.com> wrote:
>> There was a path going into set_con2fb_path if an fb driver was
>> already registered, I just pushed the locking out further on anyone
>> going in there.
>>
>> it boots on my EFI macbook here.
>>
> I cherry picked those patches to my tree, and the full series no longer triggers a lockdep warning.
> It also no longer locks up during modprobing or vga-switcheroo either.
>
> Tested-by: Maarten Lankhorst <maarten.lankhorst@...onical.com>

QA reported spurious failures in some kms_flip tests and lockdep
splats, somehow both are fixed with the locking. I'm a bit confused
how these issues could cause failures in the flip tests, but alas:

Tested-by: Lu Hua <huax.lu@...el.com> (for all three patches).
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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