Message-ID: <453CEBFB.9010409@redhat.com>
Date: Mon, 23 Oct 2006 11:21:15 -0500
From: Clark Williams <williams@redhat.com>
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To: Ingo Molnar <mingo@elte.hu>
CC: LKML <linux-kernel@vger.kernel.org>
Subject: Re: time warp on 2.6.18-rt6 (2nd try)
References: <4539158C.2090801@redhat.com> <20061020210821.GA28420@elte.hu>
In-Reply-To: <20061020210821.GA28420@elte.hu>
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Ingo Molnar wrote:
> * Clark Williams <williams@redhat.com> wrote:
> 
>> I'm still seeing the time warp ("It's just a jump to the left!" :))* 
>> being triggered on both my Athlon64x2 (32-bit kernel) and my Athlon64 
>> up box (64-bit kernel). [...]
> 
> that was most likely a false positive - every time settimeofday is done. 
> I've just uploaded -rt7, could you check it whether the time warp 
> messages are gone?
> 
> 	Ingo

I ran pi_stress on both the 32-bit kernel (Athlon64x2) and a 64-bit
kernel (Athlon64 up) and am still getting a time warp bug.

I'm rebuilding now with a bit more debug info turned on and I'm trying
to track down an Intel box that I can try this on to see if somehow I'm
exercising a code path that hasn't been touched much. Hopefully I'll be
able to test on a P3/P4 box this afternoon and can confirm or deny
whether this is AMD specific.

Clark

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