/dev/watchdog': Device or resource busy

This document (7023607) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Workstation Extension 12
SUSE Linux Enterprise Server for SAP Applications Service Pack 3

Situation

starting corosync service:

error: watchdog_init_fd: Cannot open watchdog device '/dev/watchdog': Device or resource busy (16)”     



Resolution

remove the IPMI kernel modules:
modprobe -r IPMI
modprobe -r  ipmi_devintf
modprobe -r ipmi_msghandler        

You also need to remove or remark the first 2 lines in # /etc/systemd/system.conf if they exist.
[Manager]

#RuntimeWatchdogSec=10
#ShutdownWatchdogSec=60
DefaultTasksMax=4096



Cause

IPMI Watchdog: driver initialized in messages file grabbing a hold of /dev/watchdog, this required removing ipmi modules.

After removing IPMI modules the /dev/watchdog was Indicating that watchdog was still in use.

An lsof /dev/watchdog indicated that systemd was now accessing /dev/watchdog.

This required commenting out the watchdog options from /etc/systemd/system.conf.


Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7023607
  • Creation Date: 26-Dec-2018
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise High Availability Extension
    • SUSE Linux Enterprise Server for SAP Applications

< Back to Support Search

For questions or concerns with the SUSE Knowledgebase please contact: tidfeedback@suse.com

SUSE Support Forums

Get your questions answered by experienced Sys Ops or interact with other SUSE community experts.

Join Our Community

Support Resources

Learn how to get the most from the technical support you receive with your SUSE Subscription, Premium Support, Academic Program, or Partner Program.


SUSE Customer Support Quick Reference Guide SUSE Technical Support Handbook Update Advisories
Support FAQ

Open an Incident

Open an incident with SUSE Technical Support, manage your subscriptions, download patches, or manage user access.

Go to Customer Center