[PATCH] 2.5.17 fix for running a SMP kernel on a UP box

[Greg KH <greg@kroah.com>]

I can't seem to run a SMP 2.5.17 kernel on a UP machine, it locks up
during the boot process.  In talking to Jack Vogel, he suggested I make
the following patch, which seems to solve the problem for me.  In
looking at the code, I have no idea of why this seems to work, so there
probably is a better fix out there.

Any suggestions?

thanks,

greg k-h



diff -Nru a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
--- a/arch/i386/kernel/io_apic.c	Tue May 21 14:47:06 2002
+++ b/arch/i386/kernel/io_apic.c	Tue May 21 14:47:06 2002
@@ -205,7 +205,7 @@
 } ____cacheline_aligned irq_balance_t;
 
 static irq_balance_t irq_balance[NR_IRQS] __cacheline_aligned
-			= { [ 0 ... NR_IRQS-1 ] = { 1, 0 } };
+			= { [ 0 ... NR_IRQS-1 ] = { 0, 0 } };
 
 extern unsigned long irq_affinity [NR_IRQS];