Here's a simpler patch that fixes the boot hang ..
We have to call off the IPI looping regardless of the check_nmi_watchdog
outcome..
Signed-off-by: Daniel Walker <[email protected]>
Index: linux-2.6.22/arch/i386/kernel/nmi.c
===================================================================
--- linux-2.6.22.orig/arch/i386/kernel/nmi.c 2007-08-15 00:51:12.000000000 +0000
+++ linux-2.6.22/arch/i386/kernel/nmi.c 2007-08-28 20:27:56.000000000 +0000
@@ -122,12 +122,12 @@ static int __init check_nmi_watchdog(voi
atomic_dec(&nmi_active);
}
}
+ endflag = 1;
if (!atomic_read(&nmi_active)) {
kfree(prev_nmi_count);
atomic_set(&nmi_active, -1);
return -1;
}
- endflag = 1;
printk("OK.\n");
/* now that we know it works we can reduce NMI frequency to
-
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