bind-9.10.0-P2 memory leak?

staticsafe me at
Wed Sep 10 02:40:26 UTC 2014

On 9/9/2014 05:05, lconrad at wrote:
> freebsd 10.0, bind-9.10.0-p2
> logging the rss field for named process:
> less /var/tmp/bind_rss_history.txt
> This never happened with earlier BIND9, and our mx1 uses this recursive
> BIND machine for all domain/ptr  lookups
> I've never seen any bind take over 1GB of RAM.
> max-cache-size isn't the solution, only a band-aid
> the sawtooth above is from restarting named.
> named has halted twice in the past couple weeks, we suspected some kind
> of attack, the only trace we had was in syslog with something like "swap
> space failed, named halted", but with a dedicated DNS box and 3 GB,
> there should never be any swapping.  I set a watcher for "swap used >
> 1%".  Got an alert, I saw the named rss to be 1.9GB.  restarted bind and
> wrote the rss named logging script.
> Len

This is a bit worrying for me, as I am running this version on my
master. Do you mind sharing the rss watcher/logging script?


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