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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: pacman@kosh.dhis.org
Cc: Segher Boessenkool <segher@kernel.crashing.org>,
	Mel Gorman <mel@csn.ul.ie>,
	linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: PROBLEM: memory corrupting bug, bisected to 6dda9d55
Date: Wed, 20 Oct 2010 21:32:16 +1100	[thread overview]
Message-ID: <1287570736.2198.19.camel@pasglop> (raw)
In-Reply-To: <20101020032345.5240.qmail@kosh.dhis.org>

On Tue, 2010-10-19 at 22:23 -0500, pacman@kosh.dhis.org wrote:
> The diff fragment above applied inside prom_close_stdin, but there are
> some
> prom_printf calls after prom_close_stdin. Calling prom_printf after
> closing
> stdout sounds like it could be bad. If I moved it down below all the
> prom_printf's, it would be after the "quiesce" call. Would that be
> acceptable
> (or even interesting as an experiment)? Does a close need a quiesce
> after it?

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).

Cheers,
Ben.


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  reply	other threads:[~2010-10-20 10:36 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-09  9:57 PROBLEM: memory corrupting bug, bisected to 6dda9d55 pacman
2010-10-11 12:52 ` Christoph Lameter
2010-10-11 14:30 ` Mel Gorman
2010-10-11 20:35   ` pacman
2010-10-11 21:00   ` 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 [this message]
2010-10-19 20:58                     ` 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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