linux-kernel - Re: tasks getting stuck on mmap

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Message-ID: <AANLkTinO5yip7agVO3Lq3YLjDYmkB9MP14xjt3TusMfW@mail.gmail.com>
Date:	Tue, 17 Aug 2010 13:46:08 -0700
From:	Tony Luck <tony.luck@...el.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	David Miller <davem@...emloft.net>,
	Michel Lespinasse <walken@...gle.com>,
	David Howells <dhowells@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: tasks getting stuck on mmap_sem?

On Tue, Aug 17, 2010 at 11:24 AM, Tony Luck <tony.luck@...el.com> wrote:
> ... but it isn't trivial
> for me to try this out (my systems are on an isolated lab network segment).

Setting up for "git pull" would have been messy - but "git grep" is
multi-threaded in newer versions of git. So I've set a loop to keep
running "git grep" over and over.  Load average is above 7, so
there must be some threading going on, even though I only see
one "git" process in "top(1)".  Seems to be running fine so far.

-Tony
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