linux-kernel - Re: next/mmotm unbootable on G5: irqdomain

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Date:	Sun, 22 Jul 2012 07:44:29 -0700 (PDT)
From:	Hugh Dickins <hughd@...gle.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
cc:	Grant Likely <grant.likely@...retlab.ca>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Milton Miller <miltonm@....com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Rob Herring <rob.herring@...xeda.com>,
	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: next/mmotm unbootable on G5: irqdomain

On Sun, 22 Jul 2012, Benjamin Herrenschmidt wrote:
> On Sat, 2012-07-21 at 19:47 -0700, Hugh Dickins wrote:
> > I have to revert the patch below from mmotm 2012-07-20-16-30 or
> > next-20120720 in order to boot on the PowerPC G5: otherwise it
> > freezes before switching to the framebuffer console - but I'm
> > not certain where because that initial console doesn't scroll
> > (there are mpic messages at bottom and at top of screen, probably
> > later messages at the top but I don't know the sequence).
> 
> Remind me your G5 variant ? (/proc/cpuinfo will do). I'll have a look
> tomorrow (and thanks for testing !).
> 
> > commit 94f036a1f242f98cc30700b7676c07270a9c5c27
> > Author: Grant Likely <grant.likely@...retlab.ca>
> > Date:   Sun Jun 3 22:04:39 2012 -0700
> > 
> > irqdomain: eliminate slow-path revmap lookups

Thanks, Ben - here's my /proc/cpuinfo:

processor	: 0
cpu		: PPC970MP, altivec supported
clock		: 2500.000000MHz
revision	: 1.1 (pvr 0044 0101)

processor	: 1
cpu		: PPC970MP, altivec supported
clock		: 2500.000000MHz
revision	: 1.1 (pvr 0044 0101)

processor	: 2
cpu		: PPC970MP, altivec supported
clock		: 2500.000000MHz
revision	: 1.1 (pvr 0044 0101)

processor	: 3
cpu		: PPC970MP, altivec supported
clock		: 2500.000000MHz
revision	: 1.1 (pvr 0044 0101)

timebase	: 33333333
platform	: PowerMac
model		: PowerMac11,2
machine		: PowerMac11,2
motherboard	: PowerMac11,2 MacRISC4 Power Macintosh 
detected as	: 337 (PowerMac G5 Dual Core)
pmac flags	: 00000000
L2 cache	: 1024K unified
pmac-generation	: NewWorld

Hugh
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