Merge "defconfig: msm: enable CONFIG_PANIC_ON_SCHED_BUG" (9a1879c2) · Commits · e / devices / android_kernel_xiaomi_markw

arch/arm64/configs/msm_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -552,6 +552,7 @@ CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
		# CONFIG_DETECT_HUNG_TASK is not set
		CONFIG_PANIC_TIMEOUT=5
		CONFIG_PANIC_ON_RECURSIVE_FAULT=y
		CONFIG_PANIC_ON_SCHED_BUG=y
		CONFIG_SCHEDSTATS=y
		CONFIG_TIMER_STATS=y
		CONFIG_DEBUG_SPINLOCK=y

+9 −0

Original line number	Diff line number	Diff line
		@@ -4412,6 +4412,9 @@ static noinline void __schedule_bug(struct task_struct *prev)
		print_ip_sym(current->preempt_disable_ip);
		pr_cont("\n");
		}
		#endif
		#ifdef CONFIG_PANIC_ON_SCHED_BUG
		BUG();
		#endif
		dump_stack();
		add_taint(TAINT_WARN, LOCKDEP_STILL_OK);
		@@ -8401,6 +8404,9 @@ struct sched_domain build_sched_domain(struct sched_domain_topology_level tl,
		#ifdef CONFIG_SCHED_DEBUG
		pr_err(" the %s domain not a subset of the %s domain\n",
		child->name, sd->name);
		#endif
		#ifdef CONFIG_PANIC_ON_SCHED_BUG
		BUG();
		#endif
		/* Fixup, ensure @sd has at least @child cpus. */
		cpumask_or(sched_domain_span(sd),
		@@ -9060,6 +9066,9 @@ void __might_sleep(const char *file, int line, int preempt_offset)
		print_ip_sym(current->preempt_disable_ip);
		pr_cont("\n");
		}
		#endif
		#ifdef CONFIG_PANIC_ON_SCHED_BUG
		BUG();
		#endif
		dump_stack();
		}

+10 −0

Original line number	Diff line number	Diff line
		@@ -858,6 +858,16 @@ config SCHED_DEBUG
		that can help debug the scheduler. The runtime overhead of this
		option is minimal.

		config PANIC_ON_SCHED_BUG
		bool "Panic on all bugs encountered by the scheduler"
		help
		Say Y here to panic on all 'BUG:' conditions encountered by the
		scheduler, even potentially-recoverable ones such as scheduling
		while atomic, sleeping from invalid context, and detection of
		broken arch topologies.

		Say N if unsure.

		config PANIC_ON_RT_THROTTLING
		bool "Panic on RT throttling"
		help