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authorCyrill Gorcunov <gorcunov@gmail.com>2008-05-24 19:36:31 +0400
committerThomas Gleixner <tglx@linutronix.de>2008-05-25 22:32:50 +0200
commitddca03c98a7f7ad5ab09967ff52d4ed60358c896 (patch)
treed59a5c8ece8858a1436d88a10fd12e6c6cf564b2
parent2e4db9d2c5db9c9dd3e1d1ec3263bc4a990ff8df (diff)
downloadop-kernel-dev-ddca03c98a7f7ad5ab09967ff52d4ed60358c896.zip
op-kernel-dev-ddca03c98a7f7ad5ab09967ff52d4ed60358c896.tar.gz
x86: nmi - unify die_nmi() interface
By slightly changing 32bit mode die_nmi() we may unify the interface and make it common for both (32/64bit) modes Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: hpa@zytor.com Cc: mingo@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/x86/kernel/nmi_32.c7
-rw-r--r--arch/x86/kernel/traps_32.c8
-rw-r--r--include/asm-x86/nmi.h2
3 files changed, 9 insertions, 8 deletions
diff --git a/arch/x86/kernel/nmi_32.c b/arch/x86/kernel/nmi_32.c
index 69bdae5..bd04a28 100644
--- a/arch/x86/kernel/nmi_32.c
+++ b/arch/x86/kernel/nmi_32.c
@@ -320,8 +320,6 @@ void touch_nmi_watchdog(void)
}
EXPORT_SYMBOL(touch_nmi_watchdog);
-extern void die_nmi(struct pt_regs *, const char *msg);
-
notrace __kprobes int
nmi_watchdog_tick(struct pt_regs *regs, unsigned reason)
{
@@ -375,7 +373,8 @@ nmi_watchdog_tick(struct pt_regs *regs, unsigned reason)
/*
* die_nmi will return ONLY if NOTIFY_STOP happens..
*/
- die_nmi(regs, "BUG: NMI Watchdog detected LOCKUP");
+ die_nmi("BUG: NMI Watchdog detected LOCKUP",
+ regs, 0);
} else {
__get_cpu_var(last_irq_sum) = sum;
local_set(&__get_cpu_var(alert_counter), 0);
@@ -406,7 +405,7 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu)
char buf[64];
sprintf(buf, "NMI received for unknown reason %02x\n", reason);
- die_nmi(regs, buf);
+ die_nmi(buf, regs, 0);
return 0;
}
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index bde6f63..f31e665 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -755,9 +755,9 @@ unknown_nmi_error(unsigned char reason, struct pt_regs *regs)
static DEFINE_SPINLOCK(nmi_print_lock);
-void notrace __kprobes die_nmi(struct pt_regs *regs, const char *msg)
+void notrace __kprobes die_nmi(char *str, struct pt_regs *regs, int do_panic)
{
- if (notify_die(DIE_NMIWATCHDOG, msg, regs, 0, 2, SIGINT) == NOTIFY_STOP)
+ if (notify_die(DIE_NMIWATCHDOG, str, regs, 0, 2, SIGINT) == NOTIFY_STOP)
return;
spin_lock(&nmi_print_lock);
@@ -766,10 +766,12 @@ void notrace __kprobes die_nmi(struct pt_regs *regs, const char *msg)
* to get a message out:
*/
bust_spinlocks(1);
- printk(KERN_EMERG "%s", msg);
+ printk(KERN_EMERG "%s", str);
printk(" on CPU%d, ip %08lx, registers:\n",
smp_processor_id(), regs->ip);
show_registers(regs);
+ if (do_panic)
+ panic("Non maskable interrupt");
console_silent();
spin_unlock(&nmi_print_lock);
bust_spinlocks(0);
diff --git a/include/asm-x86/nmi.h b/include/asm-x86/nmi.h
index 8455bf3..7cd5b6a 100644
--- a/include/asm-x86/nmi.h
+++ b/include/asm-x86/nmi.h
@@ -38,12 +38,12 @@ static inline void unset_nmi_pm_callback(struct pm_dev *dev)
#ifdef CONFIG_X86_64
extern void default_do_nmi(struct pt_regs *);
-extern void die_nmi(char *str, struct pt_regs *regs, int do_panic);
extern void nmi_watchdog_default(void);
#else
#define nmi_watchdog_default() do {} while (0)
#endif
+extern void die_nmi(char *str, struct pt_regs *regs, int do_panic);
extern int check_nmi_watchdog(void);
extern int nmi_watchdog_enabled;
extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
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