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Message-ID: <4EB83341.9080600@linux.vnet.ibm.com> Date: Tue, 08 Nov 2011 01:06:33 +0530 From: "Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com> To: Suresh Siddha <suresh.b.siddha@...el.com> CC: Thomas Gleixner <tglx@...utronix.de>, H Peter Anvin <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>, john stultz <johnstul@...ibm.com>, linux-kernel <linux-kernel@...r.kernel.org> Subject: Re: [patch] x86, tsc: skip TSC synchronization checks for tsc=reliable Hi, On 11/05/2011 04:12 AM, Suresh Siddha wrote: > tsc=reliable boot parameter is supposed to skip all the TSC stablility > checks during boot time. > > On a 8-socket system where we want to run an experiment with the > "tsc=reliable" boot option, TSC synchronization checks are not > getting skipped and marking the TSC as not stable. > I was facing this same problem some time back with some of my machines. > Check for tsc_clocksource_reliable (which is set via tsc=reliable or > for platforms supporting synthetic TSC_RELIABLE feature bit etc) > and when set, skip the TSC synchronization tests during boot. > This patch fixes the issue. Thanks for the fix! > Signed-off-by: Suresh Siddha <suresh.b.siddha@...el.com> Tested-by: Srivatsa S. Bhat <srivatsa.bhat@...ux.vnet.ibm.com> Thanks, Srivatsa S. Bhat -- 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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