Date: Tue, 31 Jan 2006 00:17:12 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: freebsd-current@freebsd.org, olli@lurza.secnetix.de Subject: Re: for review: sys/dev/md/md.c patch Message-ID: <20060131.001712.99374123.imp@bsdimp.com> In-Reply-To: <200601301212.k0UCCnu6054149@lurza.secnetix.de> References: <20060129050435.A5945@xorpc.icir.org> <200601301212.k0UCCnu6054149@lurza.secnetix.de>
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In message: <200601301212.k0UCCnu6054149@lurza.secnetix.de>
Oliver Fromme <olli@lurza.secnetix.de> writes:
: Luigi Rizzo <rizzo@icir.org> wrote:
: > just discovered, trying to resurrect picobsd on -current,
: > that the compiler in 6.x/7.x has become smart and, at least
: > with the default compilation flags, will optimize out
: > the "end_mfs_root" string from the object.
:
: Shouldn't it be sufficient to declare the string as volatile?
: That should prevent it from being optimized by the compiler.
I know that for the arm board I'm working on, MFS works great. The
proposed patch looks interesting, but I'm not sure why it is
necessary. I think removing the 'static' would be sufficient...
Warner
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