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-rw-r--r--kernel/debug/debug_core.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index ac5c0f9c7a20..0874e2edd275 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -696,6 +696,14 @@ kgdb_handle_exception(int evector, int signo, int ecode, struct pt_regs *regs)
696 696
697 if (arch_kgdb_ops.enable_nmi) 697 if (arch_kgdb_ops.enable_nmi)
698 arch_kgdb_ops.enable_nmi(0); 698 arch_kgdb_ops.enable_nmi(0);
699 /*
700 * Avoid entering the debugger if we were triggered due to an oops
701 * but panic_timeout indicates the system should automatically
702 * reboot on panic. We don't want to get stuck waiting for input
703 * on such systems, especially if its "just" an oops.
704 */
705 if (signo != SIGTRAP && panic_timeout)
706 return 1;
699 707
700 memset(ks, 0, sizeof(struct kgdb_state)); 708 memset(ks, 0, sizeof(struct kgdb_state));
701 ks->cpu = raw_smp_processor_id(); 709 ks->cpu = raw_smp_processor_id();
@@ -828,6 +836,15 @@ static int kgdb_panic_event(struct notifier_block *self,
828 unsigned long val, 836 unsigned long val,
829 void *data) 837 void *data)
830{ 838{
839 /*
840 * Avoid entering the debugger if we were triggered due to a panic
841 * We don't want to get stuck waiting for input from user in such case.
842 * panic_timeout indicates the system should automatically
843 * reboot on panic.
844 */
845 if (panic_timeout)
846 return NOTIFY_DONE;
847
831 if (dbg_kdb_mode) 848 if (dbg_kdb_mode)
832 kdb_printf("PANIC: %s\n", (char *)data); 849 kdb_printf("PANIC: %s\n", (char *)data);
833 kgdb_breakpoint(); 850 kgdb_breakpoint();