commit 0fa7c40c4cf1597dd0cca1f60b5eef8fdf6168a3
author David Anderson <dvander@google.com> Mon Mar 07 19:10:57 2022 -0800
committer David Anderson <dvander@google.com> Mon Mar 07 21:10:40 2022 -0800
tree b237411aab6aee9fe9a00f5ef7cc20aa3580bb96
parent a323e0233df417dbc81f4eee6aa65573173a1d3d

init: Add diagnostics for signalfd epoll failures.

Bug: 222441619
Test: inject failure with close, check for log messages
Change-Id: Ia18b88841779e230d00a6c47aaed4952b1444f85

init/init.cpp

diff --git a/init/init.cpp b/init/init.cpp
index 1df4c44..9616805 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -646,7 +646,8 @@
         PLOG(FATAL) << "failed to create signalfd";
     }
 
-    if (auto result = epoll->RegisterHandler(signal_fd, HandleSignalFd); !result.ok()) {
+    constexpr int flags = EPOLLIN | EPOLLPRI;
+    if (auto result = epoll->RegisterHandler(signal_fd, HandleSignalFd, flags); !result.ok()) {
         LOG(FATAL) << result.error();
     }
 }