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Date: Mon, 11 Jun 2007 23:13:54 -0400
From: Dave Jones <davej@...hat.com>
To: Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Allow softlockup to be runtime disabled.
It's useful sometimes to disable the softlockup checker at boottime.
Especially if it triggers during a distro install.
Signed-off-by: Dave Jones <davej@...hat.com>
--- linux-2.6/init/main.c~ 2006-03-05 00:45:51.000000000 -0500
+++ linux-2.6/init/main.c 2006-03-05 00:49:41.000000000 -0500
@@ -732,6 +732,15 @@ static void __init do_basic_setup(void)
do_initcalls();
}
+static int __initdata nosoftlockup;
+
+static int __init nosoftlockup_setup(char *str)
+{
+ nosoftlockup = 1;
+ return 1;
+}
+__setup("nosoftlockup", nosoftlockup_setup);
+
static void __init do_pre_smp_initcalls(void)
{
extern int spawn_ksoftirqd(void);
@@ -649,7 +657,8 @@ static void do_pre_smp_initcalls(void)
migration_init();
#endif
spawn_ksoftirqd();
- spawn_softlockup_task();
+ if (!nosoftlockup)
+ spawn_softlockup_task();
}
static void run_init_process(char *init_filename)
--
http://www.codemonkey.org.uk
-
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