Re: [PATCH][2.5] 2.5.21 deadlocks on UP (SMP kernel) w/ IOAPIC

From: Zwane Mwaikambo (zwane@linux.realnet.co.sz)
Date: Fri Jun 14 2002 - 10:14:31 EST


Patch updated to fix a thinko spotted out by Dan Aloni

--- linux-2.5.19/arch/i386/kernel/io_apic.c.orig Fri Jun 14 17:43:20 2002
+++ linux-2.5.19/arch/i386/kernel/io_apic.c Fri Jun 14 17:42:23 2002
@@ -251,7 +251,7 @@
         irq_balance_t *entry = irq_balance + irq;
         unsigned long now = jiffies;
 
- if (unlikely(entry->timestamp != now)) {
+ if ((entry->timestamp != now) && (smp_num_cpus > 1)) {
                 unsigned long allowed_mask;
                 int random_number;
 

Linus, please apply.

Regards,
        Zwane Mwaikambo

-- 
http://function.linuxpower.ca
		

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