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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: David Woodhouse <dwmw2@infradead.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linuxppc-dev@ozlabs.org, john stultz <johnstul@us.ibm.com>,
	Paul TBBle Hampson <Paul.Hampson@Pobox.com>,
	torvalds@linux-foundation.org
Subject: Re: Make sure we populate the initroot filesystem late enough
Date: Wed, 28 Feb 2007 07:43:07 +0100	[thread overview]
Message-ID: <1172644987.11949.90.camel@localhost.localdomain> (raw)
In-Reply-To: <3ac1a55a11baddefb903f24b988566fe@kernel.crashing.org>


> It's most likely a red herring, lots of config changes
> make the bug go away on some kernel versions (but not
> on others); the problem is very sensitive to changes in
> memory layout.

I wouldn't be that sure ... I've had problems in the past with PMU based
cpufreq... looks like flushing all caches and hard-resetting the
processor on the fly when there can be pending DMAs might be a source of
trouble... especially on CPUs that don't have working cache flush HW
assist.

Ben.

  reply	other threads:[~2007-02-28  6:45 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200612112059.kBBKx1j7022473@hera.kernel.org>
2007-02-26  0:00 ` Make sure we populate the initroot filesystem late enough David Woodhouse
2007-02-26  0:24   ` Linus Torvalds
2007-02-26  0:45     ` David Woodhouse
2007-02-26  1:17     ` David Woodhouse
2007-02-26  3:45       ` Linus Torvalds
2007-02-26  4:01         ` David Woodhouse
2007-02-26  4:13           ` Linus Torvalds
2007-02-26 16:24             ` David Woodhouse
2007-02-26  6:59           ` William Lee Irwin III
2007-02-26 15:53           ` Benjamin Herrenschmidt
2007-02-26 16:00             ` Segher Boessenkool
2007-02-26 16:44           ` Milton Miller
2007-02-26 20:57             ` David Woodhouse
2007-02-26 21:17               ` Linus Torvalds
2007-02-27  6:46                 ` Benjamin Herrenschmidt
2007-02-26 15:51       ` Benjamin Herrenschmidt
2007-02-26 20:51         ` Kumar Gala
2007-02-26 19:27   ` john stultz
2007-02-26 22:27     ` Paul TBBle Hampson
2007-02-27  6:48       ` Benjamin Herrenschmidt
2007-02-27 11:58         ` Segher Boessenkool
2007-02-28  6:43           ` Benjamin Herrenschmidt [this message]
2007-02-28 10:13             ` David Woodhouse
2007-03-01  0:30               ` Michael Ellerman
2007-03-12 23:01                 ` Paul TBBle Hampson
2007-03-13  3:03                   ` Kumar Gala
2007-03-13  7:03                   ` Benjamin Herrenschmidt
2007-03-16  7:20                     ` Paul TBBle Hampson

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