panic: Make panic_on_oops configurable (2a01bb38) · Commits · 戴 / test

Several distros set this by default by patching panic_on_oops. It seems to fit with the BOOTPARAM_{HARD,SOFT}_PANIC options though, so let's add a Kconfig entry and reduce some more upstream delta. Signed-off-by:

Kyle McMartin <kyle@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20120411121529.GH26688@redacted.bos.redhat.com Signed-off-by:

Ingo Molnar <mingo@kernel.org>

kernel/panic.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -27,7 +27,7 @@
		#define PANIC_TIMER_STEP 100
		#define PANIC_BLINK_SPD 18

		int panic_on_oops;
		int panic_on_oops = CONFIG_PANIC_ON_OOPS_VALUE;
		static unsigned long tainted_mask;
		static int pause_on_oops;
		static int pause_on_oops_flag;

lib/Kconfig.debug

+20 −0

Original line number	Diff line number	Diff line
		@@ -228,6 +228,26 @@ config BOOTPARAM_SOFTLOCKUP_PANIC_VALUE
		default 0 if !BOOTPARAM_SOFTLOCKUP_PANIC
		default 1 if BOOTPARAM_SOFTLOCKUP_PANIC

		config PANIC_ON_OOPS
		bool "Panic on Oops" if EXPERT
		default n
		help
		Say Y here to enable the kernel to panic when it oopses. This
		has the same effect as setting oops=panic on the kernel command
		line.

		This feature is useful to ensure that the kernel does not do
		anything erroneous after an oops which could result in data
		corruption or other issues.

		Say N if unsure.

		config PANIC_ON_OOPS_VALUE
		int
		range 0 1
		default 0 if !PANIC_ON_OOPS
		default 1 if PANIC_ON_OOPS

		config DETECT_HUNG_TASK
		bool "Detect Hung Tasks"
		depends on DEBUG_KERNEL

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