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From: David Miller <davem@davemloft.net>
From: Nick Piggin <npiggin@suse.de>
To: npiggin@suse.de
Cc: torvalds@linux-foundation.org, hugh@veritas.com,
	linux-arch@vger.kernel.org, linux-mm@kvack.org,
	benh@kernel.crashing.org
Subject: Re: [rfc] data race in page table setup/walking?
Date: Tue, 29 Apr 2008 03:56:07 -0700 (PDT)	[thread overview]
Date: Tue, 29 Apr 2008 07:00:54 +0200	[thread overview]
Message-ID: <20080429.035607.224699531.davem@davemloft.net> (raw)
In-Reply-To: <20080429050054.GC21795@wotan.suse.de>

> So anyway... comments, please? Am I dreaming the whole thing up? I suspect
> that if I'm not, then powerpc at least might have been impacted by the race,
> but as far as I know of, they haven't seen stability problems around there...
> Might just be terribly rare, though. I'd like to try to make a test program
> to reproduce the problem if I can get access to a box...

This definitely does look like a real problem, albeit pretty hard to
trigger I would say. :-)

Thanks for looking into this.

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  parent reply	other threads:[~2008-04-29 10:56 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-29  5:00 Nick Piggin
2008-04-29  5:08 ` Benjamin Herrenschmidt
2008-04-29  5:41   ` Nick Piggin
2008-04-29 10:56 ` David Miller, Nick Piggin [this message]
2008-04-29 12:36 ` Hugh Dickins
2008-04-29 21:37   ` Benjamin Herrenschmidt
2008-04-29 22:47     ` Hugh Dickins
2008-04-30  0:09       ` Benjamin Herrenschmidt
2008-04-30  6:03   ` Nick Piggin
2008-04-30  6:05     ` David Miller, Nick Piggin
2008-04-30  6:17       ` Nick Piggin
2008-04-30 11:14     ` Hugh Dickins
2008-05-01  0:35       ` Nick Piggin
2008-05-01 12:45         ` Hugh Dickins
2008-04-30 15:53     ` Linus Torvalds
2008-05-01  0:29       ` Nick Piggin
2008-05-01  3:24         ` Linus Torvalds
2008-05-02  1:20           ` Nick Piggin
2008-05-02  1:33             ` Linus Torvalds
2008-05-02  1:43               ` Nick Piggin

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