}
#endif
+static void report_broken_nmi(int cpu, int *prev_nmi_count)
+{
+ printk(KERN_CONT "\n");
+
+ printk(KERN_WARNING
+ "WARNING: CPU#%d: NMI appears to be stuck (%d->%d)!\n",
+ cpu, prev_nmi_count[cpu], get_nmi_count(cpu));
+
+ printk(KERN_WARNING
+ "Please report this to bugzilla.kernel.org,\n");
+ printk(KERN_WARNING
+ "and attach the output of the 'dmesg' command.\n");
+
+ per_cpu(wd_enabled, cpu) = 0;
+ atomic_dec(&nmi_active);
+}
+
int __init check_nmi_watchdog(void)
{
unsigned int *prev_nmi_count;
#ifdef CONFIG_SMP
if (nmi_watchdog == NMI_LOCAL_APIC)
- smp_call_function(nmi_cpu_busy, (void *)&endflag, 0, 0);
+ smp_call_function(nmi_cpu_busy, (void *)&endflag, 0);
#endif
for_each_possible_cpu(cpu)
for_each_online_cpu(cpu) {
if (!per_cpu(wd_enabled, cpu))
continue;
- if (get_nmi_count(cpu) - prev_nmi_count[cpu] <= 5) {
- printk(KERN_WARNING "WARNING: CPU#%d: NMI "
- "appears to be stuck (%d->%d)!\n",
- cpu,
- prev_nmi_count[cpu],
- get_nmi_count(cpu));
- per_cpu(wd_enabled, cpu) = 0;
- atomic_dec(&nmi_active);
- }
+ if (get_nmi_count(cpu) - prev_nmi_count[cpu] <= 5)
+ report_broken_nmi(cpu, prev_nmi_count);
}
endflag = 1;
if (!atomic_read(&nmi_active)) {
static void __acpi_nmi_enable(void *__unused)
{
- apic_write_around(APIC_LVT0, APIC_DM_NMI);
+ apic_write(APIC_LVT0, APIC_DM_NMI);
}
/*
void acpi_nmi_enable(void)
{
if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
- on_each_cpu(__acpi_nmi_enable, NULL, 0, 1);
+ on_each_cpu(__acpi_nmi_enable, NULL, 1);
}
static void __acpi_nmi_disable(void *__unused)
{
- apic_write_around(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED);
+ apic_write(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED);
}
/*
void acpi_nmi_disable(void)
{
if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
- on_each_cpu(__acpi_nmi_disable, NULL, 0, 1);
+ on_each_cpu(__acpi_nmi_disable, NULL, 1);
}
void setup_apic_nmi_watchdog(void *unused)
#ifdef CONFIG_SYSCTL
+static int __init setup_unknown_nmi_panic(char *str)
+{
+ unknown_nmi_panic = 1;
+ return 1;
+}
+__setup("unknown_nmi_panic", setup_unknown_nmi_panic);
+
static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu)
{
unsigned char reason = get_nmi_reason();