Hi all, I'm using dnsmasq version 2.90 in an embedded Linux project based on the Yocto Project (kirkstone branch). The recipe in use is from the OpenEmbedded meta-networking layer: https://layers.openembedded.org/layerindex/recipe/304520/
I've observed that dnsmasq memory usage steadily increases over time, even under light DNS query loads. For example: - On boot: ~1.1 MB - After 1 hour: ~3.3 MB - After ~14 hours: ~15.3 MB Relevant configuration (via NetworkManager): # cat /etc/NetworkManager/dnsmasq.d/dnsmasq-dns.conf no-negcache stop-dns-rebind server=8.8.8.8 server=1.1.1.1 all-servers log-queries log-facility=/var/log/dnsmasq.log I noticed that the `/var/log/dnsmasq.log` file grows continuously (currently ~15M), and suspect that this may be contributing to memory growth — either due to internal buffering or cumulative logging state. My questions: 1. Is this memory growth expected when `log-queries` is enabled with `log-facility`? 2. Does `dnsmasq` buffer log output internally, or are there known issues with memory not being reclaimed after prolonged logging? 3. Are there recommended best practices for logging in long-running embedded environments to avoid this kind of memory usage? Any suggestions or insights would be greatly appreciated. Thanks in advance, Cheers, Nitesh _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss
