Commit dfd5ddb5 authored May 11, 2020 by Alexander Bulekov Committed by Stefan Hajnoczi Jun 05, 2020

fuzz: run the main-loop in fork-server process



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>

parent 3b113229

tests/qtest/fuzz/i440fx_fuzz.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}
		}

tests/qtest/fuzz/virtio_net_fuzz.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}
		}

tests/qtest/fuzz/virtio_scsi_fuzz.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}
		}