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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/