[PATCH] smp-tbsync on 32-bit

Adrian Cox adrian at humboldt.co.uk
Sat Nov 18 01:35:48 EST 2006


The patch below fixes an arithmetic wrap-around issue on 32bit machines
using smp-tbsync. Without this patch a timebase value over
0x000000007fffffff will hang the boot process while bringing up
secondary CPUs.

Signed-off-by: Adrian Cox <adrian at humboldt.co.uk>

--- a/arch/powerpc/kernel/smp-tbsync.c
+++ b/arch/powerpc/kernel/smp-tbsync.c
@@ -78,7 +78,7 @@ static int __devinit start_contest(int c
 {
 	int i, score=0;
 	u64 tb;
-	long mark;
+	u64 mark;
 
 	tbsync->cmd = cmd;
 


-- 
Adrian Cox <adrian at humboldt.co.uk>




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