[Debian-ha-maintainers] SBD watchdog vs. Corosync watchdog support

[Adrian.Vondendriesch]

Hi,

I'm currently packaging SBD. While testing SBD I've noticed that it
interferences with corosync. This is because we build corosync with
watchdog support. corosync will open /dev/watchdog on startup, keeping
SBD from starting up:

> sbd -W -d /dev/sdb -p /var/run/sbd.pid watch
> error: watchdog_init: Cannot open watchdog device '/dev/watchdog':
Device or resource busy (16)

IMO SBD without watchdog support seems pretty useless to me. However,
watchdog support in corosync can't be disabled at runtime. So I suggest
disabling watchdog support in corosync at compile time (no
--enable-watchdog). AFAIK RHEL / CentOS as well as SUSE build corosync
without --enable-watchdog.

Any thoughts?

Cheers,
 - Adrian

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