linux-kernel - Re: [Intel-gfx] [3.14.0-rc4] regression: drm FIFO underruns

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Message-ID: <CAKMK7uFtZm5UDRTqaNp4X--dxSxwkMgPE5OU9Vo_K0L+G=ccvw@mail.gmail.com>
Date:	Sun, 11 May 2014 18:45:59 +0200
From:	Daniel Vetter <daniel.vetter@...ll.ch>
To:	Dave Airlie <airlied@...il.com>
Cc:	Ville Syrjälä <ville.syrjala@...ux.intel.com>,
	Damien Lespiau <damien.lespiau@...el.com>,
	David Airlie <airlied@...ux.ie>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jörg Otte <jrg.otte@...il.com>,
	Dave Airlie <airlied@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [Intel-gfx] [3.14.0-rc4] regression: drm FIFO underruns

On Fri, May 9, 2014 at 11:18 PM, Dave Airlie <airlied@...il.com> wrote:
> Please don't make things more prominent if the fixes can't be merged
> without rewriting the world,
>
> Distros have auto reporting tools for the major backtrace warnings,
> and releasing kernels with unfixable ones in it make it hard to know
> what is real and what isn't.

Fully agreed if we can't fix them. But we also need to strike some
balance for otherwise we can never enable we self-tests. And I
absolutely want those enable to have the best possible regression
testing coverage. E.g. every time we add a substantial amount of new
checks to the modeset state checker it takes 1-2 releases to settle
all the fallout. But we're backporting all the fixes, except when
they're too invasive (in which case we disable the check temporarily
or restrict it).
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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