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Commit 1f9d5406 authored by Tom Cherry's avatar Tom Cherry
Browse files

init: add timers around sync() during shutdown 

It seems that these sync() calls may take a long time in some
occasions, so we add these logs to check.

Bug: 74817735
Test: tree hugger
Change-Id: Id3635f6c7a6618b20c7caf93b05e50cc50ef99de
parent ff9b1db6

init/reboot.cpp

+12 −2
Original line number Diff line number Diff line
@@ -429,10 +429,20 @@ void RebootThread(unsigned int cmd, std::chrono::milliseconds shutdown_timeout, 
        if (kill_after_apps.count(s->name())) s->Stop();

    }

    // 4. sync, try umount, and optionally run fsck for user shutdown

    {

        Timer sync_timer;

        LOG(INFO) << "sync() before umount...";

        sync();

        LOG(INFO) << "sync() before umount took" << sync_timer;

    }

    UmountStat stat = TryUmountAndFsck(runFsck, shutdown_timeout - t.duration());

    // Follow what linux shutdown is doing: one more sync with little bit delay

    {

        Timer sync_timer;

        LOG(INFO) << "sync() after umount...";

        sync();

        LOG(INFO) << "sync() after umount took" << sync_timer;

    }

    if (cmd != ANDROID_RB_THERMOFF) std::this_thread::sleep_for(100ms);

    LogShutdownTime(stat, &t);