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-rw-r--r--arch/x86/kernel/crash.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 74467feb4dc..e0e0841eef4 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -128,7 +128,9 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
cpu_emergency_svm_disable();
lapic_shutdown();
-#if defined(CONFIG_X86_IO_APIC)
+#ifdef CONFIG_X86_IO_APIC
+ /* Prevent crash_kexec() from deadlocking on ioapic_lock. */
+ ioapic_zap_locks();
disable_IO_APIC();
#endif
#ifdef CONFIG_HPET_TIMER