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Diffstat (limited to 'init')
-rw-r--r--init/main.c31
1 files changed, 28 insertions, 3 deletions
diff --git a/init/main.c b/init/main.c
index b2f3b566790..628b8e9e841 100644
--- a/init/main.c
+++ b/init/main.c
@@ -47,6 +47,8 @@
#include <linux/key.h>
#include <linux/unwind.h>
#include <linux/buffer_head.h>
+#include <linux/debug_locks.h>
+#include <linux/lockdep.h>
#include <asm/io.h>
#include <asm/bugs.h>
@@ -456,6 +458,16 @@ asmlinkage void __init start_kernel(void)
smp_setup_processor_id();
+ /*
+ * Need to run as early as possible, to initialize the
+ * lockdep hash:
+ */
+ lockdep_init();
+
+ local_irq_disable();
+ early_boot_irqs_off();
+ early_init_irq_lock_class();
+
/*
* Interrupts are still disabled. Do necessary setups, then
* enable them
@@ -496,8 +508,13 @@ asmlinkage void __init start_kernel(void)
init_timers();
hrtimers_init();
softirq_init();
- time_init();
timekeeping_init();
+ time_init();
+ profile_init();
+ if (!irqs_disabled())
+ printk("start_kernel(): bug: interrupts were enabled early\n");
+ early_boot_irqs_on();
+ local_irq_enable();
/*
* HACK ALERT! This is early. We're enabling the console before
@@ -507,8 +524,16 @@ asmlinkage void __init start_kernel(void)
console_init();
if (panic_later)
panic(panic_later, panic_param);
- profile_init();
- local_irq_enable();
+
+ lockdep_info();
+
+ /*
+ * Need to run this when irqs are enabled, because it wants
+ * to self-test [hard/soft]-irqs on/off lock inversion bugs
+ * too:
+ */
+ locking_selftest();
+
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start && !initrd_below_start_ok &&
initrd_start < min_low_pfn << PAGE_SHIFT) {