Brad Chandler:
> Aug 15 18:51:24 mx03 postfix/smtpd[13552]: fatal: watchdog timeout
> Aug 15 18:51:25 mx03 postfix/master[1553]: warning: process
> /usr/libexec/postfix/smtpd pid 13552 exit status 1
Wietse:
> That is a Postfix safety mechanism for rare infrastructure bugs
> that mess up Postfix event handling (typically, whether or not a
> file descriptor is readable).
>
> - What OS distribution is this?
> - Is the system running on virtual hardware?
Brad Chandler:
> Yes, these are virtual machines. The OS is Red Hat Enterprise Linux 7.9.
What virtual hardware? KVM, VirtualBox, VMware, Hyper-V? This is more
academic curiosity.
Wietse
