Ubuntu
dnsmasq package

  1. Bug #1980146
  2. Comment #4

Comment 4 for bug 1980146

Revision history for this message
Athos Ribeiro (athos-ribeiro) wrote : Re: dnsmasq often using 100% of CPU

Hi mixmastamyk,

Would you be able to provide the following information:

  * dpkg --get-selections | cut -f 1
  * /etc/resolv.conf
  * /etc/NetworkManager/NetworkManager.conf
  * /etc/dnsmasq.conf
  * /run/dnsmasq/resolv.conf
  * /var/run/dhcpd.leases (or /run/dhcpd.leases?)

Do make sure you remove any sensitive information from those.

Also, when your system hits the 100% issue, could you provide the following info:

  * ps aux
    - Is logrotate running? (Or some other 'heavy' process?)
  * journalctl -f
    - Any mention of "maximum number of concurrent dns queries reached"?

https://github.com/jedisct1/dnsblast provides a tool which could be used to try to reproduce the issue.

@sefs:

Your issue may be unrelated to mixmastamyk's bug. Wouldyou be able to file a separate bug providing the same information I just requested to mixmastamyk above?

Thanks!