From: Alexander Bulekov <alxndr@bu.edu>
Without this, the time since the last main-loop keeps increasing, as the
fuzzer runs. The forked children need to handle all the "past-due"
timers, slowing them down, over time. With this change, the
parent/fork-server process runs the main-loop, while waiting on the
child, ensuring that the timer events do not pile up, over time.
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-id: 20200512030133.29896-5-alxndr@bu.edu
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
tests/qtest/fuzz/i440fx_fuzz.c | 1 +
tests/qtest/fuzz/virtio_net_fuzz.c | 2 ++
tests/qtest/fuzz/virtio_scsi_fuzz.c | 2 ++
3 files changed, 5 insertions(+)
diff --git a/tests/qtest/fuzz/i440fx_fuzz.c b/tests/qtest/fuzz/i440fx_fuzz.c
index 775b3041ba..e2f31e56f9 100644
@@ -151,6 +151,7 @@ static void i440fx_fuzz_qos_fork(QTestState *s,
i440fx_fuzz_qos(s, Data, Size);
_Exit(0);
} else {
+ flush_events(s);
wait(NULL);
}
}
diff --git a/tests/qtest/fuzz/virtio_net_fuzz.c b/tests/qtest/fuzz/virtio_net_fuzz.c
index d08a47e278..a33bd73067 100644
@@ -122,6 +122,7 @@ static void virtio_net_fork_fuzz(QTestState *s,
flush_events(s);
_Exit(0);
} else {
+ flush_events(s);
wait(NULL);
}
}
@@ -134,6 +135,7 @@ static void virtio_net_fork_fuzz_check_used(QTestState *s,
flush_events(s);
_Exit(0);
} else {
+ flush_events(s);
wait(NULL);
}
}
diff --git a/tests/qtest/fuzz/virtio_scsi_fuzz.c b/tests/qtest/fuzz/virtio_scsi_fuzz.c
index 3b95247f12..51dce491ab 100644
@@ -145,6 +145,7 @@ static void virtio_scsi_fork_fuzz(QTestState *s,
flush_events(s);
_Exit(0);
} else {
+ flush_events(s);
wait(NULL);
}
}
@@ -164,6 +165,7 @@ static void virtio_scsi_with_flag_fuzz(QTestState *s,
}
_Exit(0);
} else {
+ flush_events(s);
wait(NULL);
}
}
--
2.25.4