Commit b3418a22 authored Nov 19, 2018 by Mark Salyzyn

llkd: do not crash kernel if llkd stops running

Today, assume llkd is not hardened enough to 100% guarantee that
lack of progress in inspection loops is a direct result of a
livelock condition affecting llkd itself.  Log a fatal alarm to
make init restart llkd instead for the time being.

ToDo: develop trust in llkd regarding sigalarm causes.

Test: compile
Bug: 119781757
Change-Id: I668dc1773898da6c95aad7221724b16f1684b067

parent eb1213f1

llkd/libllkd.cpp

+3 −1

Original line number	Diff line number	Diff line
		@@ -555,7 +555,9 @@ void llkPanicKernel(bool dump, pid_t tid, const char* state, const std::string&
		}

		void llkAlarmHandler(int) {
		llkPanicKernel(false, ::getpid(), "alarm");
		LOG(FATAL) << "alarm";
		// NOTREACHED
		llkPanicKernel(true, ::getpid(), "alarm");
		}

		milliseconds GetUintProperty(const std::string& key, milliseconds def) {