From: Howard Chu <hyc@symas.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: APIC frequency too slow on HP dv5z
Date: Tue, 30 Sep 2008 12:55:47 -0700 [thread overview]
Message-ID: <48E28443.7060708@symas.com> (raw)
More often than not, on a warm boot I see something like this
msg.new:[ 1.940031] Using local APIC timer interrupts.
msg.new:[ 1.944031] APIC timer calibration result 466046
msg.new:[ 1.944031] Detected 0.466 MHz APIC timer.
msg.new:[ 1.944031] APIC frequency too slow, disabling apic timer
On cold boots it may see 12.5MHz, or may not...
[ 2.000584] Using local APIC timer interrupts.
[ 2.004067] APIC timer calibration result 12500236
[ 2.004080] Detected 12.500 MHz APIC timer.
I haven't figured out yet what the pattern is behind the behavior. Has anyone
else seen this kind of problem before?
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
next reply other threads:[~2008-09-30 19:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-30 19:55 Howard Chu [this message]
2008-10-02 8:53 ` APIC frequency too slow on HP dv5z Thomas Gleixner
2008-10-02 9:05 ` Howard Chu
2008-10-02 9:13 ` Thomas Gleixner
2008-10-02 22:56 ` Howard Chu
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