From 2a01bb3885c9145dbb7583d5aa5f5d5504f6f46f Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Wed, 11 Apr 2012 08:15:29 -0400 Subject: [PATCH] panic: Make panic_on_oops configurable 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 Cc: Andrew Morton Cc: Linus Torvalds Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20120411121529.GH26688@redacted.bos.redhat.com Signed-off-by: Ingo Molnar --- kernel/panic.c | 2 +- lib/Kconfig.debug | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/kernel/panic.c b/kernel/panic.c index 8ed89a1..b6215b7 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -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; diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 6777153..91858cd 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -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 -- 2.7.4