Ce contenu n'est pas disponible dans la langue sélectionnée.

Chapter 32. Using Advanced Error Reporting


When you use the Advanced Error Reporting (AER), you receive notifications of error events for Peripheral Component Interconnect Express (PCIe) devices. RHEL enables this kernel feature by default and collects the reported errors in the kernel logs. If you use the rasdaemon program, these errors are parsed and stored in its database.

32.1. Overview of AER

Advanced Error Reporting (AER) is a kernel feature that provides enhanced error reporting for Peripheral Component Interconnect Express (PCIe) devices. The AER kernel driver attaches root ports which support PCIe AER capability in order to:

  • Gather the comprehensive error information
  • Report errors to the users
  • Perform error recovery actions

When AER captures an error, it sends an error message to the console. For a repairable error, the console output is a warning.

Example 32.1. Example AER output

Feb  5 15:41:33 hostname kernel: pcieport 10003:00:00.0: AER: Corrected error received: id=ae00
Feb  5 15:41:33 hostname kernel: pcieport 10003:00:00.0: AER: Multiple Corrected error received: id=ae00
Feb  5 15:41:33 hostname kernel: pcieport 10003:00:00.0: PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=0000(Receiver ID)
Feb  5 15:41:33 hostname kernel: pcieport 10003:00:00.0:   device [8086:2030] error status/mask=000000c0/00002000
Feb  5 15:41:33 hostname kernel: pcieport 10003:00:00.0:    [ 6] Bad TLP
Feb  5 15:41:33 hostname kernel: pcieport 10003:00:00.0:    [ 7] Bad DLLP
Feb  5 15:41:33 hostname kernel: pcieport 10003:00:00.0: AER: Multiple Corrected error received: id=ae00
Feb  5 15:41:33 hostname kernel: pcieport 10003:00:00.0: PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=0000(Receiver ID)
Feb  5 15:41:33 hostname kernel: pcieport 10003:00:00.0:   device [8086:2030] error status/mask=00000040/00002000
Copy to Clipboard Toggle word wrap

32.2. Collecting and displaying AER messages

To collect and display AER messages, use the rasdaemon program.

Procedure

  1. Install the rasdaemon package.

    # yum install rasdaemon
    Copy to Clipboard Toggle word wrap
  2. Enable and start the rasdaemon service.

    # systemctl enable --now rasdaemon
    Created symlink /etc/systemd/system/multi-user.target.wants/rasdaemon.service  /usr/lib/systemd/system/rasdaemon.service.
    Copy to Clipboard Toggle word wrap
  3. Issue the ras-mc-ctl command.

    # ras-mc-ctl --summary
    # ras-mc-ctl --errors
    Copy to Clipboard Toggle word wrap

    The command displays a summary of the logged errors (the --summary option) or displays the errors stored in the error database (the --errors option).

Retour au début
Red Hat logoGithubredditYoutubeTwitter

Apprendre

Essayez, achetez et vendez

Communautés

À propos de la documentation Red Hat

Nous aidons les utilisateurs de Red Hat à innover et à atteindre leurs objectifs grâce à nos produits et services avec un contenu auquel ils peuvent faire confiance. Découvrez nos récentes mises à jour.

Rendre l’open source plus inclusif

Red Hat s'engage à remplacer le langage problématique dans notre code, notre documentation et nos propriétés Web. Pour plus de détails, consultez le Blog Red Hat.

À propos de Red Hat

Nous proposons des solutions renforcées qui facilitent le travail des entreprises sur plusieurs plates-formes et environnements, du centre de données central à la périphérie du réseau.

Theme

© 2025 Red Hat