/dev/watchdog': Device or resource busy

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


starting corosync service:

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


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.



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.


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  • 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

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