Date: Thu, 9 Feb 2006 09:10:54 +0000 (UTC) From: Yar Tikhiy <yar@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 identcpu.c Message-ID: <200602090910.k199As8E084788@repoman.freebsd.org>
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yar 2006-02-09 09:10:54 UTC
FreeBSD src repository
Modified files:
sys/i386/i386 identcpu.c
Log:
Avoid calling CPUID function 0x02 if the CPU reports no support for
it. The former code used to hang older Intel CPUs by trying to get
non-existent TLB info 2^32 times.
Reduce code duplication around the calls to CPUID 0x02 by using
do-while loops.
PR: i386/92977
Tested by: cy
Revision Changes Path
1.158 +24 -49 src/sys/i386/i386/identcpu.c
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