리눅스 커널단에서 물리적 메모리를 읽어올때 문제입니다 고수님들 도와주세요 ㅎ

[bushi@rose kernel32]$ sudo ./r 0xFEE00320
fee00320: 000300ef
[bushi@rose kernel32]$

...
/*
 * This function sets up the local APIC timer, with a timeout of
 * 'clocks' APIC bus clock. During calibration we actually call
 * this function twice on the boot CPU, once with a bogus timeout
 * value, second time for real. The other (noncalibrating) CPUs
 * call this function only once, with the real, calibrated value.
 *
 * We do reads before writes even if unnecessary, to get around the
 * P5 APIC double write bug.
 */
static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen)
{
        unsigned int lvtt_value, tmp_value;
 
        lvtt_value = LOCAL_TIMER_VECTOR;
        if (!oneshot)
                lvtt_value |= APIC_LVT_TIMER_PERIODIC;
        if (!lapic_is_integrated())
                lvtt_value |= SET_APIC_TIMER_BASE(APIC_TIMER_BASE_DIV);
 
        if (!irqen)
                lvtt_value |= APIC_LVT_MASKED;
 
        apic_write(APIC_LVTT, lvtt_value);
 
        /*
         * Divide PICLK by 16
         */
        tmp_value = apic_read(APIC_TDCR);
        apic_write(APIC_TDCR,
                (tmp_value & ~(APIC_TDR_DIV_1 | APIC_TDR_DIV_TMBASE)) |
                APIC_TDR_DIV_16);
 
        if (!oneshot)
                apic_write(APIC_TMICT, clocks / APIC_DIVISOR);
}
...

...
/*
 * Local APIC timer IRQ vector is on a different priority level,
 * to work around the 'lost local interrupt if more than 2 IRQ
 * sources per level' errata.
 */
#define LOCAL_TIMER_VECTOR		0xef
...

...
#define		APIC_LVT_TIMER_PERIODIC		(1 << 17)
...