linux-kernel - Re: Excessive WARN()s in Intel 915 driver

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Date:	Wed, 8 Jan 2014 13:34:02 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Daniel Vetter <daniel@...ll.ch>
cc:	Daniel Vetter <daniel.vetter@...ll.ch>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: Excessive WARN()s in Intel 915 driver

On Wed, 8 Jan 2014, Daniel Vetter wrote:

> On Wed, Jan 08, 2014 at 11:08:08AM -0500, Alan Stern wrote:
> > On Tue, 7 Jan 2014, Daniel Vetter wrote:
> > 
> > > I really want users to report these issues, and excessive WARNs seems
> > > to be the only way to get those reports. Please boot with
> > > drm.debug=0xe added to your kernel cmdline and reproduce this issues.
> > > Also, which precise kernel are you running? Testing latest -rc is
> > > always recommended, this state checker code is fairly new and gets
> > > constantly extended and bugs fixed ...
> > 
> > Here you go.  This is the dmesg output after booting with
> > drm.debug=0xe.  Pay no attention to the "AS" suffix in the version
> > string; this is pristine 3.13-rc7.
> 
> That's strange, I've thought we've fixed the last struggling mismatch in
> the lvds borber bits stuff. Can you please try latest drm-intel-nightly
> from
> 
> http://cgit.freedesktop.org/~danvet/drm-intel/

I prefer not to clone 1.7 GB of git data if at all possible.  Can you
post (or send to me directly) a patch containing the differences with
respect to 3.13-rc7?  It should end up being fairly small.

Alan Stern

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