truncate must less than compact

pkg/backup/backupschedule/backup_schedule_manager.go

@@ -15,6 +15,7 @@ package backupschedule
 
 import (
 	"fmt"
+	"math"
 	"path"
 	"sort"
 	"strings"
@@ -654,6 +655,19 @@ func (bm *backupScheduleManager) backupGCByMaxReservedTime(bs *v1alpha1.BackupSc
 		klog.Infof("backup schedule %s/%s gc backup %s success", ns, bsName, backup.GetName())
 	}
 
+	var compactProgress uint64
+	if bs.Spec.CompactBackupTemplate == nil {
+		compactProgress = math.MaxUint64
+	} else if bs.Status.LastCompactTime == nil {
+		compactProgress = 0
+	} else {
+		compactProgress = config.GoTimeToTS(bs.Status.LastCompactTime.Time)
+	}
+
+	if truncateTSO > compactProgress {
+		truncateTSO = compactProgress
+	}
+
 	if truncateTSO > 0 {
 		// truncate the log backup
 		if err = bm.deps.BackupControl.TruncateLogBackup(logBackup, truncateTSO); err != nil {