Re: [PATCH] more robust halt_light

From: Alex Williamson <>
Date: 2004-03-05 02:47:27
On Wed, 2004-03-03 at 15:56, Jesse Barnes wrote:
> On Wed, Mar 03, 2004 at 02:45:11PM -0800, David Mosberger wrote:
> > Can we get rid of the CONFIG option too?  Or do folks who care (too?)
> > much about wake-up latency prefer to turn off a CONFIG option over
> > booting with nohlt?
> Some people have come to me concerned about the wakeup latency of having
> the halt call in there, and it also looks like the PAL has a bug on our
> platform that causes hangs when we call PAL_HALT_LIGHT (which we're
> tracking down), so I wouldn't mind if the config option stuck around a
> little longer (or was a boot time parameter at least).


    Perhaps sn specific code (maybe sn_setup) could call disable_hlt()
until you're comfortable leaving it on by default.  Requiring a boot
time command like option on your platform sounds error prone.


Alex Williamson                             HP Linux & Open Source Lab

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Received on Thu Mar 4 10:55:16 2004

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