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Date: Thu, 9 Aug 2007 02:50:43 +0200 From: Andi Kleen <ak@...e.de> To: "Aaron Durbin" <adurbin@...gle.com> Cc: linux-kernel@...r.kernel.org, akpm@...l.org Subject: Re: [PATCH] x86_64: Avoid NMI Watchdog and/or long wait in setup_APIC_timer > > I was thinking along the same lines as well, but I really didn't know how > important all that code was for waiting for the next irq slice. I'm not time > expert, but I would imagine we would resynchronize correctly in the future after > this code path? The idea is to just have the apic timers roughly at the same times + some fixed offset as the main timer. Otherwise e.g. add_timer could jitter up to a jiffie regarding the jiffies counter. But long term drift will destroy the synchronization anyways. I guess i'll send it in anyways for .23; it would be too risky to change anything radical in this area that late. Then later it can be revisited. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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