[Dnsmasq-discuss] dnsmasq hangs after a certain time

[Geert Stappers]

On Fri, Oct 29, 2021 at 03:00:11PM +0200, Felix Queißner wrote:
> Hello List!
> 
> I deployed a dnsmasq installation[0] in a Docker container that is built on
> top of debian and the s6-overlay software. It also contains a custom
> software that reads data from a mariadb and writes the dnsmasq config files.
> 
> This software will then send the HUP signal to dnsmasq when the config files
> change.
> 
> The problem will then appear one to three days later and dnsmasq will just
> stop working. The process won't exit, and doesn't react to signals anymore.
> Only using `kill` with SIGKILL will stop dnsmasq, which is then restarted by
> s6. dnsmasq will not answer any DHCP or DNS requests in that time.
> 
> Is that a known bug? Is this a new one?

> Can i somehow help reproducing/debugging the bug?

> I have experience in C development,
> so i can use gdb if it is required/wanted.

Start with it, don't wait for approval.

 
> Best regards
> - Felix "xq" Queißner
> 
> 
> [0]
> Dnsmasq version 2.85  Copyright (c) 2000-2021 Simon Kelley

Version 2.86 is released
and git has some work done for 2.87


> Compile time options: IPv6 GNU-getopt DBus no-UBus i18n IDN2 DHCP DHCPv6
> no-Lua TFTP conntrack ipset auth cryptohash DNSSEC loop-detect inotify
> dumpfile


Groeten
Geert Stappers
-- 
Silence is hard to parse