Date: Thu, 9 Jun 2005 14:20:07 GMT From: Hiroo Ono <hiroo@oikumene.gcd.org> To: freebsd-i386@FreeBSD.org Subject: Re: i386/75898: Exception and reboot: Loader and kernel use SSE2 instructions before they get enabled Message-ID: <200506091420.j59EK7cR003160@freefall.freebsd.org>
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The following reply was made to PR i386/75898; it has been noted by GNATS. From: Hiroo Ono <hiroo@oikumene.gcd.org> To: bug-followup@FreeBSD.org, obrien@FreeBSD.org Cc: freebsd@chillt.de Subject: Re: i386/75898: Exception and reboot: Loader and kernel use SSE2 instructions before they get enabled Date: Thu, 09 Jun 2005 23:10:49 +0900 Hello, > bsd.cpu.mk as of version 1.42 on 6.0-CURRENT and 1.40.2.1 on > 5.3-STABLE recognizes the setting CPUTYPE=pentium-m in > /etc/make.conf, which enables code generation and optimization for > the Pentium M family. One of the features enabled by this switch is > SSE2. > One way of fixing this would be to specifically disable SSE and SSE2 > support in the Makefiles of those parts of the system that run > before the OSFXSR bit is set Mr.Obrien committed the fix in src/sys/boot/i386/Makefile.inc rev.1.10 (HEAD) and 1.9.2.1 (RELENG_5), src/sys/boot/ficl/Makefile rev.1.41 (HEAD) (not MFC'ed though). This seems to have fixed the problem in 6-CURRENT. The problem described in PR/ still remains. The PR i386/81111 (/boot/loader causes reboot due to CFLAGS+= -msse3) may relate to this PR. Also, i386/81694 may be related. The latter is not MFC'ed and thus RELENG_5 is still affected (I ran into this problem with 5.4-RELEASE-p1). Would you please MFC it?
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