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From: "David S. Miller" <davem@redhat.com>
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Date: Tue, 20 Mar 2001 17:38:57 -0800 (PST)
To: buhr@stat.wisc.edu (Kevin Buhr)
Cc: Linus Torvalds <torvalds@transmeta.com>, Serge Orlov <sorlov@con.mcst.ru>,
        <linux-kernel@vger.kernel.org>,
        Jakob ?stergaard <jakob@unthought.net>
Subject: Re: Linux 2.4.2 fails to merge mmap areas, 700% slowdown.
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Kevin Buhr writes:
 > If I recall correctly, RedHat's 2.96 was a modified development
 > snapshot of GCC 3.0, not an official GCC release.  If this is just a
 > quirk in 2.96 that can be fixed before the official release of 3.0 by
 > a trivial patch to libiberty, maybe your original hunch was right and
 > the kernel should be left as-is.

It is the garbage collector scheme used for memory allocation in gcc
>=2.96 that triggers the bad cases seen by Serge.

Later,
David S. Miller
davem@redhat.com
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