Hi all!
In arch/i86/kernel/irq.c, function free_irq():
.
.
   if (irq < 8) {
        cache_21 |= 1 << irq;
        outb(0x21,cache_21);       <--- outb(cache_21,0x21);
    } else {
        cache_A1 |= 1 << (irq-8);
        outb(0xA1,cache_A1);       <--- outb(cache_A1,0xA1);
.
.

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Have a nice day!!!
Good bye, V. Shamaev. Voronezh, Russia. E-mail: [EMAIL PROTECTED]

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