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Re: [Xen-devel] xen-2.0 20040923 and previous: rpm crash in xenU

To: Peri Hankey <mpah@xxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] xen-2.0 20040923 and previous: rpm crash in xenU
From: Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>
Date: Mon, 27 Sep 2004 16:54:20 +0100
Cc: Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxxx, fbl@xxxxxxxxxxxxxxxx, Ian.Pratt@xxxxxxxxxxxx
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In-reply-to: Your message of "Sat, 25 Sep 2004 19:48:44 BST." <4155BD8C.2050408@xxxxxxxxxxxxxx>
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> Thanks for sending the test - one point of interest is that my 
> /proc/cpuinfo doesn't match your expectations - presumably an AMD 
> Athlon(tm) XP 2400+ is running at 2400MHz. The main point however is 
> that the results are indeed different in the two domains:

> [me@xenU testing]$ ./time-test
> find_cpu_speed: error parsing /proc/cpuinfo for cpu MHz. Assume 2400 
> MhzCPU speed = 2400 MHz
> nanosleep(20000us): gtod 0
> .nanosleep(20000us): gtod 0
> .nanosleep(20000us): gtod 0

Can you try a newer version of Xen/Linux. There's been a tsc flag
change that may influence this.

It may be an Athlon-only bug, as we can't reproduce on Opteron or
Xeon.

Thanks,
Ian


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