Date: Tue, 12 Apr 2011 22:41:52 +0000 (UTC) From: Jung-uk Kim <jkim@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/x86/isa clock.c Message-ID: <201104122242.p3CMgDOn074350@repoman.freebsd.org>
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jkim 2011-04-12 22:41:52 UTC
FreeBSD src repository
Modified files:
sys/x86/isa clock.c
Log:
SVN rev 220581 on 2011-04-12 22:41:52Z by jkim
Do not use TSC for DELAY(9) if it not P-state invariant to avoid possible
foot-shooting. DELAY() becomes unreliable when TSC frequency varies wildly,
especially cpufreq(4) and powerd(8) are used at the same time.
Revision Changes Path
1.24 +1 -1 src/sys/x86/isa/clock.c
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