From: tony@atomide•com (Tony Lindgren)
To: linux-arm-kernel@lists•infradead.org
Subject: Errata on multiplatform kernels
Date: Tue, 11 Dec 2012 17:28:36 -0800 [thread overview]
Message-ID: <20121212012836.GC4989@atomide.com> (raw)
In-Reply-To: <50C7D562.9090706@jonmasters.org>
* Jon Masters <jonathan@jonmasters•org> [121211 16:59]:
> And for the (Google) record, if you see an imprecise external abort at
> boot time on recent multiplatform kernel:
>
> [ 22.141268] Unhandled fault: imprecise external abort (0xc06) at
> 0x4cb2e830
>
> This may well be that your kernel is running in non-secure mode and does
> not have access to undocumented/unexposed registers that it is trying to
> write into, and consequently is causing this error. There. That should
> save some other poor sucker many wasted hours. Could this, perhaps,
> sometime be documented somewhere? :)
Hmm how about we add a handler for that that would just set the
booted CPU to have non-secure flag set for other code to use?
That is assuming it's the same abort for all ARMs..
Tony
prev parent reply other threads:[~2012-12-12 1:28 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-11 5:20 Errata on multiplatform kernels Tony Prisk
2012-12-11 5:32 ` Olof Johansson
2012-12-11 18:01 ` Tony Lindgren
2012-12-12 0:41 ` Jon Masters
2012-12-12 0:51 ` Russell King - ARM Linux
2012-12-12 0:54 ` Jon Masters
2012-12-12 3:01 ` Rob Herring
2012-12-12 4:56 ` Jon Masters
2012-12-12 0:52 ` Jon Masters
2012-12-12 1:28 ` Tony Lindgren [this message]
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