From: Jerry Cooperstein <coop@axian.com>
To: linux-kernel@vger.kernel.org
Subject: seqlock/unlock(&xtime_lock) problems cause keyboard, time skew problems
Date: Tue, 18 Mar 2003 11:05:57 -0800 [thread overview]
Message-ID: <20030318190557.GA14447@p3.attbi.com> (raw)
Since 2.5.60 my thinkpad keyboard repeat rate has been erratic when
started up on battery power; plugging into AC after startup only makes
it worse. Starting up on AC is fine. Compiling without apm in any
form is fine.
I posted on this a month ago and noone had solutions although I got
several emails from folks with similarly afflicted machines.
Since then I've noticed that I also get a bad time skew, with the
system clock jumping forward.
I'm pretty sure the problem arose with the introduction of the
seqlock/unlock interface to protect xtime_lock instead of a regular rw
lock. Short of trying to back the whole thing out, does any one have
similar observations, suggestions, solutions?
======================================================================
Jerry Cooperstein, Senior Consultant, <coop@axian.com>
Axian, Inc., Software Consulting and Training
4800 SW Griffith Dr., Ste. 202, Beaverton, OR 97005 USA
http://www.axian.com/
======================================================================
next reply other threads:[~2003-03-18 18:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-18 19:05 Jerry Cooperstein [this message]
2003-03-18 20:32 ` Stephen Hemminger
2003-03-18 20:59 ` Jerry Cooperstein
2003-03-18 23:34 ` john stultz
2003-03-19 0:21 ` Jerry Cooperstein
2003-03-19 0:38 ` [PATCH] boot time parameter to turn of TSC usage Stephen Hemminger
2003-03-19 0:39 ` Andrew Morton
2003-03-19 1:03 ` Stephen Hemminger
2003-03-18 23:57 ` seqlock/unlock(&xtime_lock) problems cause keyboard, time skew problems Stephen Hemminger
[not found] ` <1048022686.6291.6.camel@dell_ss3.pdx.osdl.net>
[not found] ` <20030318214101.GA4527@p3.attbi.com>
[not found] ` <1048025052.6294.16.camel@dell_ss3.pdx.osdl.net>
[not found] ` <20030318222313.GA4831@p3.attbi.com>
[not found] ` <1048027027.6297.33.camel@dell_ss3.pdx.osdl.net>
[not found] ` <20030318225801.GC4831@p3.attbi.com>
[not found] ` <1048030151.6297.71.camel@dell_ss3.pdx.osdl.net>
2003-03-19 0:27 ` Jerry Cooperstein
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