linux-kernel - Re: [git pull] drm urgent fix

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Message-ID: <CAPM=9txzrcSYGbWdZw375Ef940VoXc1DMeZWiLD8zassz6sB3w@mail.gmail.com>
Date:	Thu, 26 Mar 2015 13:29:44 +1000
From:	Dave Airlie <airlied@...il.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Dave Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	DRI mailing list <dri-devel@...ts.freedesktop.org>
Subject: Re: [git pull] drm urgent fix

On 26 March 2015 at 13:04, Linus Torvalds <torvalds@...ux-foundation.org> wrote:
> On Wed, Mar 25, 2015 at 3:43 PM, Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:
>>
>> I'm going to wait a bit more with this, since clearly things are still
>> in flux, and these two commits don't actually fix everything at all.
>>
>> There's apparently at least one more fix necessary.
>
> Indeed. I can see the problem myself.
>
> With current git I get two warnings:
>
>    WARNING: CPU: 3 PID: 325 at include/linux/kref.h:47
> drm_framebuffer_reference+0x72/0x80 [drm]()
>    WARNING: CPU: 4 PID: 107 at drivers/gpu/drm/drm_atomic.c:482
> drm_atomic_check_only+0x32d/0x4f0 [drm]()
>
> and testing the pull it gets rid of the first one, but no tthe second one.
>
> So that urgent fix is very much still lacking.

I've pushed a drm-fixes-staging branch that backport's Daniel's
drm-next fix from 9 hours ago,

However it isn't tested yet, so if you want to give it a whirl grab it.

Hopefully when Daniel comes on line he can provide assurance that my
fix is a correct backport.

Dave.
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