slimtoolkit/slim · error

saving reports failed: %w

Error message

saving reports failed: %w

What it means

After a successful monitor status, processMonitoringResults calls s.artifactor.Process(...) to persist the PE, fan and Pt reports. If artifactor.Process fails, the error is wrapped with 'saving reports failed'. Monitoring data was collected but could not be saved/processed.

Source

Thrown at pkg/app/sensor/controlled/controlled.go:256

	}

	log.Info("sensor: composite monitor is done, checking status...")

	report, err := mon.Status()
	if err != nil {
		log.WithError(err).Error("sensor: composite monitor failed")
		return fmt.Errorf("composite monitor failed: %w", err)
	}

	if err := s.artifactor.Process(
		mon.StartCommand(),
		s.mountPoint,
		report.PeReport,
		report.FanReport,
		report.PtReport,
	); err != nil {
		log.WithError(err).Error("sensor: artifact.Process() failed")
		return fmt.Errorf("saving reports failed: %w", err)
	}
	return nil // Clean exit
}

View on GitHub (pinned to 81940d17fa)

Solutions

1. Check the wrapped error from artifactor.Process
2. Verify the artifacts output directory is writable and has free space
3. Validate report contents (PeReport/FanReport/PtReport) are not nil/corrupt before processing

// pre-flight disk space check on artifacts volume
if st, err := os.Stat(artifactsDir); err == nil {
	// ensure writable: attempt temp file create
	f, err := os.CreateTemp(artifactsDir, "wtest")
	if err != nil { log.Fatalf("artifacts dir not writable: %v", err) }
	f.Close(); os.Remove(f.Name())
}

if err != nil && strings.Contains(err.Error(), "saving reports failed") {
	// check disk full / permissions; reports may be recoverable from monitor memory
}

When it happens

Trigger: artifactor.Process returns an error while writing reports — disk full, unwritable artifact directory, failure processing report content.

Common situations: Disk exhaustion on the artifact volume, permission issues after env prep, malformed report data from a sub-monitor.

Related errors

• failed to prepare artifacts env: %w
• composite monitor failed: %w
• sensor shutdown before monitor stop
• ambiguous start command: cannot use [app_name,app_args] and
• run sensor without monitor failed: %w

AI-assisted analysis of slimtoolkit/slim@81940d17fa (2026-08-31). Data as JSON: /api/errors/d5613646ddba0e2d. Report an issue: GitHub.