linux-kernel - Re: Logged messages from i915 using kernel 3.19-rc4

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Message-ID: <20150120083617.GA5046@nazgul.tnic>
Date:	Tue, 20 Jan 2015 09:36:17 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Larry Finger <Larry.Finger@...inger.net>
Cc:	Daniel Vetter <daniel.vetter@...el.com>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	intel-gfx@...ts.freedesktop.org,
	"dri-devel@...ts.freedesktop.org >> DRI" 
	<dri-devel@...ts.freedesktop.org>
Subject: Re: Logged messages from i915 using kernel 3.19-rc4

On Tue, Jan 20, 2015 at 01:17:10AM -0600, Larry Finger wrote:
> Hi,
> 
> I just discovered almost 100 of the following entries in my log:
> 
> [drm:intel_uncore_check_errors [i915]] *ERROR* Unclaimed register before interrupt
> 
> Those were accumulated in about 12 hours of operation. I also have one that says
> 
> i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment

I got different ones on rc5 :)

[    0.970103] [drm:intel_set_pch_fifo_underrun_reporting] *ERROR* uncleared pch fifo underrun on pch transcoder A
[    0.970107] [drm:intel_pch_fifo_underrun_irq_handler] *ERROR* PCH transcoder A FIFO underrun

and I'm wondering whether those can be simply shut up or we can actually
do something about them...

Thanks.

-- 
Regards/Gruss,
    Boris.
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