linux-kernel - Re: CN80xx (octeontx/thunderx) breakage from f2d8340

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Message-ID: <20200312095832.yjjhxfxs7ay2iq6j@rric.localdomain>
Date:   Thu, 12 Mar 2020 10:58:32 +0100
From:   Robert Richter <rrichter@...vell.com>
To:     Tim Harvey <tharvey@...eworks.com>
CC:     Marc Zyngier <maz@...nel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Sunil Goutham <sgoutham@...vell.com>
Subject: Re: CN80xx (octeontx/thunderx) breakage from f2d8340

Tim,

> > On 2020-03-11 20:17, Tim Harvey wrote:

> > > Im seeing a failure to boot on an octeontx CN80xx (thunderx) due to
> > > f2d8340 ("irqchip/gic-v3: Add GICv4.1 VPEID size discovery"). I'm not
> > > sure if something is hanging, I just get no console output from the
> > > kernel.

if you are booting with serial console, you could try to use earlycon
boot parameter to get more output. Though, I do not have the
parameters for that system at hand. You could try 'earlycon' without
parameters or perhaps 'earlycon=pl011,0x87e024000000' or similar (not
sure if that works, maybe check devicetree).

-Robert