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Cc: freebsd-fs@FreeBSD.org, Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= <des@des.no>,
	freebsd-current@FreeBSD.org,
	Pawel Jakub Dawidek <pjd@FreeBSD.org>, freebsd-geom@FreeBSD.org
Subject: Re: GJournal (hopefully) final patches.
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> > -fno-strict-aliasing does not solve anything, it just prevents the
> > compiler from telling you about bugs in your code.
>
> Which must be the reason that it is used when building the kernel on AMD64.
> ;-)

Actually, whenever the kernel is compiled with -O2. "Type punning" is
sufficiently uncommon in the kernel proper that it is correctable there.
However, it is pervasive throughout the device drivers.

                -Kip