syz-verifier: fix VM reboot every 5 minutes (#2923)

Current state: every 5 minutes VM reboots.
Fix: signal "executing program" to monitor to prevent this reboot.

2 files changed, 2 insertions, 1 deletions

diff --git a/syz-runner/runner.go b/syz-runner/runner.go
index a01cb794b..26bdb2669 100644
--- a/syz-runner/runner.go
+++ b/syz-runner/runner.go
@@ -112,6 +112,7 @@ func (rn *Runner) Run(firstProg []byte, idx, runIdx int) {
 			log.Fatalf("failed to deserialise new program: %v", err)
 		}
 
+		log.Printf("executing program") // watchdog for monitor
 		_, info, hanged, err := env.Exec(rn.opts, prog)
 		if err != nil {
 			log.Fatalf("failed to execute the program: %v", err)
diff --git a/vm/vm.go b/vm/vm.go
index f6932d832..5f481f0a3 100644
--- a/vm/vm.go
+++ b/vm/vm.go
@@ -358,7 +358,7 @@ const (
 )
 
 var (
-	executingProgram1 = []byte("executing program")  // syz-fuzzer output
+	executingProgram1 = []byte("executing program")  // syz-fuzzer, syz-runner output
 	executingProgram2 = []byte("executed programs:") // syz-execprog output
 
 	beforeContext = 1024 << 10