linux-kernel - Re: [patch V2 00/20] timer: Refactor the timer wheel

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Date:	Wed, 22 Jun 2016 11:06:07 +0200
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Chris Mason <clm@...com>,
	Arjan van de Ven <arjan@...radead.org>, rt@...utronix.de,
	Rik van Riel <riel@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	George Spelvin <linux@...encehorizons.net>,
	Len Brown <lenb@...nel.org>, ltp@...ts.linux.it
Subject: Re: [patch V2 00/20] timer: Refactor the timer wheel

On Wed, 2016-06-22 at 10:44 +0200, Thomas Gleixner wrote:
> B1;2802;0cOn Wed, 22 Jun 2016, Mike Galbraith wrote:
> > FWIW, testing with ltp, I noticed a new failure in logs.  It turns
> out
> > to be intermittent, but the testcase mostly fails.
> 
> You forgot to cc the LTP folks ...

This ain't the only one, it's just new.  I'll mention it.
 
File under FYI/FWIW: I also plugged the set into RT, and nothing fell
out of local boxen.  The below is falling out of my 8 socket box
though.. maybe a portage booboo.

[ 1503.988863] clocksource: timekeeping watchdog on CPU42: Marking clocksource 'tsc' as unstable because the skew is too large:
[ 1504.203800] clocksource:                       'hpet' wd_now: 38b55bb wd_last: 8303f269 mask: ffffffff
[ 1504.296111] clocksource:                       'tsc' cs_now: 3a3aa717794 cs_last: 354624eea7b mask: ffffffffffffffff
[ 1504.402329] clocksource: Switched to clocksource hpet