The new kirq code breaks clustered apic mode. This 2-liner fixes it.
It should compile down to the same thing, unless you're using a
clustered apic sub-arch.
-- Dave Hansen haveblue@us.ibm.com
diff -ru linux-2.5.62-clean/arch/i386/kernel/io_apic.c linux-2.5.62-kirqfix/arch/i386/kernel/io_apic.c --- linux-2.5.62-clean/arch/i386/kernel/io_apic.c Mon Feb 17 14:56:10 2003 +++ linux-2.5.62-kirqfix/arch/i386/kernel/io_apic.c Tue Feb 18 09:44:22 2003 @@ -441,7 +441,7 @@ Dprintk("irq = %d moved to cpu = %d\n", selected_irq, min_loaded); /* mark for change destination */ spin_lock(&desc->lock); - irq_balance_mask[selected_irq] = target_cpu_mask; + irq_balance_mask[selected_irq] = cpu_to_logical_apicid(min_loaded); spin_unlock(&desc->lock); /* Since we made a change, come back sooner to * check for more variation. @@ -515,7 +515,7 @@ /* push everything to CPU 0 to give us a starting point. */ for (i = 0 ; i < NR_IRQS ; i++) - irq_balance_mask[i] = 1 << 0; + irq_balance_mask[i] = cpu_to_logical_apicid(0); for (;;) { set_current_state(TASK_INTERRUPTIBLE); time_remaining = schedule_timeout(time_remaining); Only in linux-2.5.62-kirqfix/arch/i386/kernel: io_apic.c~
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