From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: pacman@kosh.dhis.org
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: PROBLEM: memory corrupting bug, bisected to 6dda9d55
Date: Thu, 21 Oct 2010 07:56:55 +1100 [thread overview]
Message-ID: <1287608215.2198.23.camel@pasglop> (raw)
In-Reply-To: <20101020183336.1714.qmail@kosh.dhis.org>
On Wed, 2010-10-20 at 13:33 -0500, pacman@kosh.dhis.org wrote:
> > Just try :-) "quiesce" is something that afaik only apple ever
> > implemented anyways. It uses hooks inside their OF to shut down all
> > drivers that do bus master (among other HW sanitization tasks).
>
> I booted a version with a prom_close_stdout after the last prom_debug. It
> didn't have any effect. That 1000Hz clock was still ticking.
Ok so you'll have to make up a "workaround" in prom_init that looks for
OHCI's in the device-tree and disable them.
Check if the OHCI node has some existing f-code words you can use for
that with "dev /path-to-ohci words" in OF for example. If not, you may
need to use the low level register accessors. Use OF client interface
"interpret" to run forth code from C.
Cheers,
Ben.
next prev parent reply other threads:[~2010-10-20 20:57 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20101009095718.1775.qmail@kosh.dhis.org>
[not found] ` <20101011143022.GD30667@csn.ul.ie>
2010-10-11 21:00 ` PROBLEM: memory corrupting bug, bisected to 6dda9d55 Andrew Morton
2010-10-13 14:40 ` Mel Gorman
2010-10-13 17:52 ` pacman
2010-10-18 11:33 ` Mel Gorman
2010-10-18 19:10 ` pacman
2010-10-18 21:10 ` Benjamin Herrenschmidt
2010-10-18 21:33 ` pacman
2010-10-19 10:16 ` Benjamin Herrenschmidt
2010-10-19 18:10 ` pacman
2010-10-19 20:47 ` Segher Boessenkool
2010-10-19 21:02 ` Benjamin Herrenschmidt
2010-10-20 3:23 ` pacman
2010-10-20 10:32 ` Benjamin Herrenschmidt
2010-10-20 18:33 ` pacman
2010-10-20 20:56 ` Benjamin Herrenschmidt [this message]
2010-10-22 9:15 ` pacman
2010-10-27 8:57 ` Pegasos OHCI bug (was Re: PROBLEM: memory corrupting bug, bisected to 6dda9d55) pacman
2010-10-27 10:13 ` Olaf Hering
2010-10-27 21:04 ` Pegasos OHCI bug (was Re: PROBLEM: memory corrupting bug, pacman
2010-10-27 22:05 ` Segher Boessenkool
2010-10-27 22:58 ` pacman
2010-10-27 23:33 ` Segher Boessenkool
2010-10-28 1:11 ` pacman
2010-10-28 19:50 ` Segher Boessenkool
2010-10-28 21:07 ` pacman
2010-10-29 0:16 ` Segher Boessenkool
2010-11-05 6:43 ` pacman
2010-11-29 5:44 ` Benjamin Herrenschmidt
2010-10-27 13:27 ` Pegasos OHCI bug (was Re: PROBLEM: memory corrupting bug, bisected to 6dda9d55) Benjamin Herrenschmidt
2010-10-19 20:58 ` PROBLEM: memory corrupting bug, bisected to 6dda9d55 Benjamin Herrenschmidt
2010-10-18 19:37 ` Andrew Morton
2010-10-18 21:02 ` Benjamin Herrenschmidt
2010-10-18 21:55 ` Thomas Gleixner
2010-10-19 16:24 ` Helmut Grohne
2010-10-19 16:42 ` Thomas Gleixner
2010-10-18 20:59 ` Benjamin Herrenschmidt
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