From: Thomas Gleixner <tglx@linutronix.de>
To: Mark Lord <lkml@rtr.ca>
Cc: Daniel Walker <dwalker@mvista.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@osdl.org>
Subject: Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
Date: Tue, 01 May 2007 17:24:21 +0200 [thread overview]
Message-ID: <1178033061.5791.314.camel@localhost.localdomain> (raw)
In-Reply-To: <46374B1D.6050509@rtr.ca>
On Tue, 2007-05-01 at 10:13 -0400, Mark Lord wrote:
> Thomas Gleixner wrote:
> > On Tue, 2007-05-01 at 09:34 -0400, Mark Lord wrote:
> >>> now at 3232363876949 nsecs
> >> ...
> >>
> >> Oh, in case it matters any:
> >> that /proc/timer_list is from the system with CFS-V7 also patched in.
> >
> > It should not. What happens when you disable HPET ?
>
> Booting with clocksource=tsc still hangs in what appears
> to be the exact same place.
I meant disable HPET via: hpet=disable on the commandline
> Screenshots for that are available here: http://rtr.ca/hrtimers/
>
> Of possible interest is that the bottom of the 25line screen capture
> differs somewhat from the 50line capture.. see for yourself.
> This is 100% consistent from boot to boot.
>
> Using CONFIG_DETECT_SOFTLOCKUP=y eliminates the problem,
> so that's really got to be a huge clue, somehow ?
Unfortunately not. Other than it runs the watchdog task once a second it
does not affect the time/clockevent... mechanisms at all
tglx
next prev parent reply other threads:[~2007-05-01 15:22 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-30 20:17 [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS Mark Lord
2007-04-30 20:19 ` Mark Lord
2007-04-30 20:37 ` Mark Lord
2007-04-30 23:36 ` Mark Lord
2007-04-30 23:45 ` Thomas Gleixner
2007-04-30 23:46 ` Daniel Walker
2007-05-01 0:02 ` Mark Lord
2007-05-01 0:07 ` Michal Piotrowski
2007-05-01 0:11 ` Mark Lord
2007-05-01 0:13 ` Daniel Walker
2007-05-01 3:33 ` Mark Lord
2007-05-01 4:32 ` Daniel Walker
2007-05-01 4:34 ` Daniel Walker
2007-05-01 13:34 ` Thomas Gleixner
2007-05-01 13:33 ` Mark Lord
2007-05-01 13:34 ` Mark Lord
2007-05-01 13:48 ` Thomas Gleixner
2007-05-01 14:13 ` Mark Lord
2007-05-01 14:26 ` Michal Piotrowski
2007-05-01 14:41 ` Mark Lord
2007-05-01 15:24 ` Thomas Gleixner [this message]
2007-05-01 16:31 ` Mark Lord
2007-05-01 16:42 ` Daniel Walker
2007-05-01 15:57 ` Thomas Gleixner
2007-05-01 16:52 ` Mark Lord
2007-05-02 7:47 ` Thomas Gleixner
2007-05-02 8:05 ` Andrew Morton
2007-05-02 12:53 ` Mark Lord
2007-05-02 15:40 ` Thomas Gleixner
2007-05-02 22:29 ` Mark Lord
2007-05-02 22:41 ` Thomas Gleixner
2007-05-03 2:29 ` Mark Lord
2007-05-08 18:46 ` Mark Lord
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