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From: "Pali Rohár" <pali.rohar@gmail.com>
To: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Pavel Machek <pavel@ucw.cz>, Tony Lindgren <tony@atomide.com>,
	"linux-omap" <linux-omap@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Aaro Koskinen <aaro.koskinen@iki.fi>,
	Sebastian Reichel <sre@kernel.org>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>,
	Russell King <linux@arm.linux.org.uk>,
	linux-arm-kernel@lists.infradead.org,
	Laura Abbott <lauraa@codeaurora.org>
Subject: Re: N900 v3.19-rc5 arm atags_to_fdt.c is broken
Date: Tue, 27 Jan 2015 16:26:12 +0100	[thread overview]
Message-ID: <201501271626.12365@pali> (raw)
In-Reply-To: <alpine.LFD.2.11.1501271014160.1322@knanqh.ubzr>

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On Tuesday 27 January 2015 16:16:24 Nicolas Pitre wrote:
> On Tue, 27 Jan 2015, Pavel Machek wrote:
> > > > > I would say, problem is because omap3-n900 binary DT
> > > > > is too large
> > > 
> > > I agree.
> > > 
> > > > OK if that's the case, then your patch makes sense to
> > > > me. It also seems we can have the temporary stack be
> > > > larger than the initial stack just for atags_to_fdt.
> > > 
> > > The stack size isn't the issue, but rather its location. 
> > > We need to position it away from the DT data.  The DT
> > > size is known and we could use that, plus some room for
> > > the insertion of new data coming from the ATAG
> > > conversion.
> > 
> > > Something like the following would be a more robust 
solution:
> > Tested-by: Pavel Machek <pavel@ucw.cz>
> > 
> > (Note, that in 3.19 dts for n900 got too big, so we are
> > actually triggering old bugs. That means that this is a
> > regression fix, and should go in ASAP).
> 
> It is queued here:
> http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id
> =8294/1
> 
> 
> Nicolas

I tested your patch and fdt_open_into() does not return error 
FDT_ERR_NOSPACE anymore. It is working. So you can add my

Tested-by: Pali Rohár <pali.rohar@gmail.com>

-- 
Pali Rohár
pali.rohar@gmail.com

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  reply	other threads:[~2015-01-27 15:26 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-23 21:39 Pali Rohár
2015-01-23 22:36 ` Pali Rohár
2015-01-23 23:48   ` Pavel Machek
2015-01-24  9:04     ` Pali Rohár
2015-01-26 16:14   ` Tony Lindgren
2015-01-26 16:23     ` Pali Rohár
2015-01-26 17:03       ` Tony Lindgren
2015-01-26 18:57         ` Nicolas Pitre
2015-01-26 21:48           ` Pavel Machek
2015-01-27  0:06             ` Nicolas Pitre
2015-01-27 13:37           ` Pavel Machek
2015-01-27 15:16             ` Nicolas Pitre
2015-01-27 15:26               ` Pali Rohár [this message]
2015-01-27 15:26               ` Tony Lindgren
2015-01-27 17:53               ` Russell King - ARM Linux
2015-01-27 18:50                 ` Nicolas Pitre
2015-01-27 23:09                   ` Aaro Koskinen
2015-01-27 23:17                   ` Pavel Machek
2015-02-02 13:39               ` Pavel Machek
2015-02-02 13:56                 ` Nicolas Pitre

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