linux-kernel - Re: 2.6.33-rc1: hrtimers and tickless broken on m68knommu.

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Message-Id: <200912181920.12905.sfking@fdwdc.com>
Date:	Fri, 18 Dec 2009 19:20:12 -0800
From:	Steven King <sfking@...dc.com>
To:	linux-kernel@...r.kernel.org
Cc:	john stultz <johnstul@...ibm.com>
Subject: Re: 2.6.33-rc1: hrtimers and tickless broken on m68knommu.

On Friday 18 December 2009 06:44:44 john stultz wrote:
> On Fri, Dec 18, 2009 at 6:13 PM, Steven King <sfking@...dc.com> wrote:
> > Attach is the .config; it works on v2.6.32 but fails to boot on .33-rc1;
> > but if I deselect hrtimers && tickless then it works.
>
> Sorry for the dup, forgot to cc lkml on my reply.
>
> Fails to boot all together? Or does it hang at some point in the dmesg
> that you can point out?

fails to boot all together; nothing on the serial console.
>
> Could you run the following so we can narrow down which clocksource your
> using? cat /sys/devices/system/clocksource/clocksource0/current_clocksource
> cat /sys/devices/system/clocksource/clocksource0/available_clocksource
>
> Then with the kernel that doesn't boot, go through the clocksources
> listed in available_clocksources and try booting w/
> "clocksource=<clock name>" and see if the behavior changes.

on the working .32 kernel:

# cat /sys/devices/system/clocksource/clocksource0/current_clocksource
pit
# cat /sys/devices/system/clocksource/clocksource0/available_clocksource
pit

just to be sure, I tried clocksource=pit on the .33-rc1 kernel.  It didnt make 
any difference.

-- 
Steven King -- sfking at fdwdc dot com
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