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Date: Sun, 20 Jan 2008 22:59:01 +0100
From: "Markus Strobl" <markus.strobl@gmx.at>
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Cc: ports@freebsd.org
Subject: FreeBSD Port: devcpu-0.8.2_1
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Hi Stanislav,

few days ago, i write you a mail over my problem with the devcpu kernelmodul. I want to set a msr for undervolting a amd x2 cpu.
Now I use the following patch for cpu.c:

--- workO/devcpu-0.8.2/cpu/cpu.c        2007-07-20 00:30:18.000000000 +0200
+++ work/devcpu-0.8.2/cpu/cpu.c 2008-01-18 23:59:32.000000000 +0100
@@ -230,7 +230,8 @@
                ("[cpu,%d]: bad cpu number %d", __LINE__, cpu));

        /* Explicitly clear cpuid data to avoid returning stale info */
-       data->data = 0;
+       if (cmd == CPU_RDMSR)
+               data->data = 0;

        DPRINTF("[cpu,%d]: operating on MSR %#0x for %d cpu\n", __LINE__, \
                data->msr, cpu);


Undervolting with a amd X2 cpu works now fine :-).

Best regards

Markus





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