@Erich - infinite hangs are usually due to the kernel somewhere, while
suggesting dig was a good idea just to try I wonder if we would have to
find what "host" actually hangs on to be sure that "dig" in turn will
not some day block on just the same.

Can one of you affected when the "host" command hangs check if it is spinning 
in userspace or if it is a kernel wchan?
$ cat /proc/<pid of host>/wchan
and
$ perf top -p <pid of host>
$ strace -rtf -p <pid of host>
should help to get an idea what it is blocking on.

@Trent - you said you started on strace already, maybe you can provide the full 
logs here?
Also was it spinning in strace (on the same things) or just waiting?

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1752411

Title:
  bind9-host, avahi-daemon-check-dns.sh hang forever causes network
  connections to get stuck

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1752411/+subscriptions

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to