From: "Ross Biro" <rossb@google.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
rossb@google.com, akpm@linux-foundation.org
Subject: Re: [PATCH 1/2] MM: Make Page Tables Relocatable -- conditional flush
Date: Fri, 11 Apr 2008 09:49:00 -0400 [thread overview]
Message-ID: <d43160c70804110649q1b099b02n835f90c5651f3073@mail.gmail.com> (raw)
In-Reply-To: <20080410172603.98224DCA40@localhost>
On Thu, Apr 10, 2008 at 1:26 PM, Ross Biro <rossb@google.com> wrote:
> rcu cleanup. There still appears to be a race, but it looks like it's
> in the rcu code. If I reduce the migration code to
>
> down_interruptible()
> synchronize_rcu()
> up()
>
> I still get a crash about once every 1-2 million times through the
> loop. If the race is in my code, it's something stupid. Otherwise
> it's elsewhere and my code won't make things anyworse.
This race appears to have been fixed between 2.6.25rc5-mm1 and
2.6.25rc8-mm1. I've been running the later over night and have over 7
million iterations with out a crash.
Ross
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next prev parent reply other threads:[~2008-04-11 13:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-10 17:26 [PATCH 1/2] MM: Make Page Tables Relocatable -- conditional flush Ross Biro
2008-04-11 13:49 ` Ross Biro [this message]
-- strict thread matches above, loose matches on Subject: below --
2008-04-14 13:19 Ross Biro
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