diff options
Diffstat (limited to 'arch/x86')
-rw-r--r-- | arch/x86/kernel/apic_64.c | 20 | ||||
-rw-r--r-- | arch/x86/kernel/irq_64.c | 20 |
2 files changed, 20 insertions, 20 deletions
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c index e0191cdd6f7a..032bf1e765df 100644 --- a/arch/x86/kernel/apic_64.c +++ b/arch/x86/kernel/apic_64.c | |||
@@ -169,26 +169,6 @@ int lapic_get_maxlvt(void) | |||
169 | return maxlvt; | 169 | return maxlvt; |
170 | } | 170 | } |
171 | 171 | ||
172 | /* | ||
173 | * 'what should we do if we get a hw irq event on an illegal vector'. | ||
174 | * each architecture has to answer this themselves. | ||
175 | */ | ||
176 | void ack_bad_irq(unsigned int irq) | ||
177 | { | ||
178 | printk("unexpected IRQ trap at vector %02x\n", irq); | ||
179 | /* | ||
180 | * Currently unexpected vectors happen only on SMP and APIC. | ||
181 | * We _must_ ack these because every local APIC has only N | ||
182 | * irq slots per priority level, and a 'hanging, unacked' IRQ | ||
183 | * holds up an irq slot - in excessive cases (when multiple | ||
184 | * unexpected vectors occur) that might lock up the APIC | ||
185 | * completely. | ||
186 | * But don't ack when the APIC is disabled. -AK | ||
187 | */ | ||
188 | if (!disable_apic) | ||
189 | ack_APIC_irq(); | ||
190 | } | ||
191 | |||
192 | void clear_local_APIC(void) | 172 | void clear_local_APIC(void) |
193 | { | 173 | { |
194 | int maxlvt; | 174 | int maxlvt; |
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c index 6b5c730d67b9..6c3a3b6e5cf4 100644 --- a/arch/x86/kernel/irq_64.c +++ b/arch/x86/kernel/irq_64.c | |||
@@ -20,6 +20,26 @@ | |||
20 | 20 | ||
21 | atomic_t irq_err_count; | 21 | atomic_t irq_err_count; |
22 | 22 | ||
23 | /* | ||
24 | * 'what should we do if we get a hw irq event on an illegal vector'. | ||
25 | * each architecture has to answer this themselves. | ||
26 | */ | ||
27 | void ack_bad_irq(unsigned int irq) | ||
28 | { | ||
29 | printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq); | ||
30 | /* | ||
31 | * Currently unexpected vectors happen only on SMP and APIC. | ||
32 | * We _must_ ack these because every local APIC has only N | ||
33 | * irq slots per priority level, and a 'hanging, unacked' IRQ | ||
34 | * holds up an irq slot - in excessive cases (when multiple | ||
35 | * unexpected vectors occur) that might lock up the APIC | ||
36 | * completely. | ||
37 | * But don't ack when the APIC is disabled. -AK | ||
38 | */ | ||
39 | if (!disable_apic) | ||
40 | ack_APIC_irq(); | ||
41 | } | ||
42 | |||
23 | #ifdef CONFIG_DEBUG_STACKOVERFLOW | 43 | #ifdef CONFIG_DEBUG_STACKOVERFLOW |
24 | /* | 44 | /* |
25 | * Probabilistic stack overflow check: | 45 | * Probabilistic stack overflow check: |