> From: Geert Stappers > Sent: Thursday, March 31, 2022 06:31 > From: Simon Kelley > Sent: Thursday, March 31, 2022 08:53
As I feared, I made a clueless error. I created a syslog deadlock. This is the very case for which the perfectly well documented option "log-async" exists, and that solved the problem. Thank you both for responding! Once I ruled out the possibilities you had me look into, it became easier to see where I actually erred. The only part I still don't understand is the 10 to 20 minute delay. Geert> Most likely due cache content considered valid. If it were DNS caching in dnsmasq, then when I restart with cache-size=0, maybe that should eliminate the delay -- instead I should see the problem instantly. But the behavior stayed the same. I read syslogd.c, and found no cache code there. The docs on getnameinfo() claim it does not cache unless you spin up ncsd. That's where I stopped for now. There's no practical reason now for me to look any further, just that I don't like mysteries. If time permits I'll turn on debugging in sysklogd and dnsmasq, and share what I find. Cheers Edward _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss
