[Dnsmasq-discuss] dnsmasq using 100% cpu on router

Alex Xu alex_y_xu at yahoo.ca
Tue Apr 22 21:50:58 UTC 2014


On 22/04/14 03:04 PM, David Joslin wrote:
> Hi
> 
> I have an Asus rt-n16 router running the Shibby version of the Tomato
> firmware which includes dnsmasq version 2.69test3. It's in use in a
> building that frequently has 50+ users on a wireless network and dnsmasq
> has performed extremely well with very little load on the router.
> 
> However, we've recently run a couple of conferences in the building and the
> number of people using the wireless network has been just over 100. Several
> times there have been problems resolving addresses and when I've looked at
> the router dnsmasq has been using 100% cpu. Restarting dnsmasq temporarily
> fixes the problem but it occurs again maybe 20 minutes later.
> 
> I've turned off logging, increased the cache-size and the maximum number of
> dhcp leases (anything I could see that might be a problem with more users)
> but this hasn't fixed the problem.
> 
> I wondered if anyone has come across anything similar or has any
> suggestions?
> 
> Thanks
> 
> David
> 
> 
> 
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> 

dnssec

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