From mboxrd@z Thu Jan  1 00:00:00 1970
From: ilikepie420@live.com (bob)
Date: Thu, 20 Oct 2011 15:07:18 -0400
Subject: mmap local APIC address
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Message-ID: <20111020190718.GA5003@thinkpad>
To: kernelnewbies@lists.kernelnewbies.org
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> #define APIC_ICR_high           0xfee00310

>   apic_icr = tmpaddress;
>   apic_icr |= APIC_ICR_high;
>   apic_phy_addr = (unsigned long *) apic_icr;
>   *apic_phy_addr = cpu << 24;

You mangled apic_icr here, APIC_ICR_high should be an offset. Look at
the definitions in arch/x86/include/asm/apicdef.h.