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Date: Wed, 27 Aug 2008 09:47:13 +0200 From: Peter Zijlstra <a.p.zijlstra@...llo.nl> To: Ingo Molnar <mingo@...e.hu> Cc: Yinghai Lu <yhlu.kernel@...il.com>, Thomas Gleixner <tglx@...utronix.de>, "H. Peter Anvin" <hpa@...or.com>, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org Subject: Re: [PATCH] x86: printk_time to use tsc before cpu_clock is ready On Wed, 2008-08-27 at 09:42 +0200, Ingo Molnar wrote: > * Yinghai Lu <yhlu.kernel@...il.com> wrote: > > > +static unsigned long long tsc_clock(int cpu) > > +{ > > + unsigned long long t; > > + > > + rdtscll(t); > > + > > + return t; > > +} > > hm, i'm not sure i like the whole direction - this reintroduces > printk_clock in essence. > > how about initializing cpu_clock() sooner, so that printk timestamps > start ticking as soon as possible? which will make some archs quite unhappy iirc, see those arm and ia64 bugs I caused the other day. -- 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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