Message-ID: <1136829634.43c2a4c2e0997@www.domainfactory-webmail.de>
Date: Mon, 09 Jan 2006 19:00:34 +0100
From: lkml@cl.domainfactory-kunde.de
To: Andi Kleen <ak@muc.de>
Cc: Clemens Ladisch <clemens@ladisch.de>, Andrew Morton <akpm@osdl.org>,
       Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>,
       Vojtech Pavlik <vojtech@suse.cz>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] HPET RTC emulation: add watchdog timer
References: <20060109154350.GA22126@turing.informatik.uni-halle.de> <20060109164140.GA67021@muc.de>
In-Reply-To: <20060109164140.GA67021@muc.de>
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Andi Kleen wrote:
> On Mon, Jan 09, 2006 at 04:43:50PM +0100, Clemens Ladisch wrote:
> > To prevent the emulated RTC timer from stopping when interrupts
> > are disabled for too long, implement the watchdog timer to
> > restart it when needed.
>
> The interrupt handler should just read the time (it likely
> has to do that anyways)

Not in the current implementation.

> and check for that directly.

I want to avoid the read altogether because the round trip to the
south bridge is rather slow (1.5 microseconds with VIA chipsets).


Clemens

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