From 6c8b90a1abc330c4e05307ddb268b084a02cd2a3 Mon Sep 17 00:00:00 2001
From: Taras Madan <tarasmadan@google.com>
Date: Thu, 21 Aug 2025 11:35:15 +0200
Subject: vm: extract all the crashes from the log

---
 pkg/build/netbsd.go      | 6 +++---
 pkg/instance/execprog.go | 6 +++++-
 pkg/manager/diff.go      | 7 +++++--
 pkg/manager/repro.go     | 1 +
 4 files changed, 14 insertions(+), 6 deletions(-)

(limited to 'pkg')

diff --git a/pkg/build/netbsd.go b/pkg/build/netbsd.go
index 21564e1aa..199ebc424 100644
--- a/pkg/build/netbsd.go
+++ b/pkg/build/netbsd.go
@@ -158,13 +158,13 @@ func (ctx netbsd) copyKernelToDisk(targetArch, vmType, outputDir, kernel string)
 	commands = append(commands, "sync") // Run sync so that the copied image is stored properly.
 	ctxTimeout, cancel := context.WithTimeout(context.Background(), time.Minute)
 	defer cancel()
-	_, rep, err := inst.Run(ctxTimeout, reporter, strings.Join(commands, ";"))
+	_, reps, err := inst.Run(ctxTimeout, reporter, strings.Join(commands, ";"))
 	if err != nil {
 		return fmt.Errorf("error syncing the instance %w", err)
 	}
 	// Make sure that the command has executed properly.
-	if rep != nil {
-		return fmt.Errorf("error executing sync: %v", rep.Title)
+	if len(reps) > 0 {
+		return fmt.Errorf("error executing sync: %v", reps[0].Title)
 	}
 	return nil
 }
diff --git a/pkg/instance/execprog.go b/pkg/instance/execprog.go
index 0b9f9ebf7..7c97819f4 100644
--- a/pkg/instance/execprog.go
+++ b/pkg/instance/execprog.go
@@ -126,10 +126,14 @@ func (inst *ExecProgInstance) runCommand(command string, duration time.Duration,
 	}
 	ctxTimeout, cancel := context.WithTimeout(context.Background(), duration)
 	defer cancel()
-	output, rep, err := inst.VMInstance.Run(ctxTimeout, inst.reporter, command,
+	output, reps, err := inst.VMInstance.Run(ctxTimeout, inst.reporter, command,
 		vm.WithExitCondition(exitCondition),
 		optionalBeforeContext,
 	)
+	var rep *report.Report
+	if len(reps) > 0 {
+		rep = reps[0]
+	}
 	if err != nil {
 		return nil, fmt.Errorf("failed to run command in VM: %w", err)
 	}
diff --git a/pkg/manager/diff.go b/pkg/manager/diff.go
index 57340314e..8b57e5807 100644
--- a/pkg/manager/diff.go
+++ b/pkg/manager/diff.go
@@ -675,7 +675,7 @@ func (kc *kernelContext) runInstance(ctx context.Context, inst *vm.Instance,
 	cmd := fmt.Sprintf("%v runner %v %v %v", executorBin, inst.Index(), host, port)
 	ctxTimeout, cancel := context.WithTimeout(ctx, kc.cfg.Timeouts.VMRunningTime)
 	defer cancel()
-	_, rep, err := inst.Run(ctxTimeout, kc.reporter, cmd,
+	_, reps, err := inst.Run(ctxTimeout, kc.reporter, cmd,
 		vm.WithExitCondition(vm.ExitTimeout),
 		vm.WithInjectExecuting(injectExec),
 		vm.WithEarlyFinishCb(func() {
@@ -685,7 +685,10 @@ func (kc *kernelContext) runInstance(ctx context.Context, inst *vm.Instance,
 			kc.serv.StopFuzzing(inst.Index())
 		}),
 	)
-	return rep, err
+	if len(reps) > 0 {
+		return reps[0], err
+	}
+	return nil, err
 }
 
 func (kc *kernelContext) triageProgress() float64 {
diff --git a/pkg/manager/repro.go b/pkg/manager/repro.go
index e7034b186..184945c5c 100644
--- a/pkg/manager/repro.go
+++ b/pkg/manager/repro.go
@@ -31,6 +31,7 @@ type Crash struct {
 	Manual        bool
 	FullRepro     bool // used by the diff fuzzer to do a full scale reproduction
 	*report.Report
+	TailReports []*report.Report
 }
 
 func (c *Crash) FullTitle() string {
-- 
cgit mrf-deployment