On 16.10.22 23:25, Christopher J. Madsen wrote:
> I tried building dnsmasq 2.87 with a patch that reverts commit 553c4c99,
> and that does seem to fix the problem.
Related to the very same patch, but from a slightly different angle:
automatic reload of $resolv-file purges all upstream servers not
configured in this $resolve-file; below is a small minimal configuration
and the logs of v2.88test1 vs v2.88test1+backout-553c4c9
==== dnsmasq.conf
# Include all files in a directory which end in .conf
conf-dir=/data/bla/t/dnsmasq-example/dnsmasq.d/,*.conf
==== dnsmasq.d/check.conf
resolv-file=/run/NetworkManager/no-stub-resolv.conf
server=/ct.de/9.9.9.9
server=/heise.de/8.8.8.8
no-negcache
interface=lo
domain-needed
clear-on-reload
port=5355
no-dhcp-interface=lo
keep-in-foreground
user=dnsmasq
==== Output of v2.88test1:
> pkill -f -USR1 dnsmasq-example
dnsmasq[2314255]: time 1666000359
dnsmasq[2314255]: cache size 150, 0/0 cache insertions re-used unexpired
cache entries.
dnsmasq[2314255]: queries forwarded 0, queries answered locally 0
dnsmasq[2314255]: queries for authoritative zones 0
dnsmasq[2314255]: pool memory in use 0, max 0, allocated 0
dnsmasq[2314255]: server 9.9.9.9#53: queries sent 0, retried 0, failed
0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2314255]: server 8.8.8.8#53: queries sent 0, retried 0, failed
0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2314255]: server 172.27.1.253#53: queries sent 0, retried 0,
failed 0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2314255]: server 172.27.1.254#53: queries sent 0, retried 0,
failed 0, nxdomain replies 0, avg. latency 0ms
> touch /run/NetworkManager/no-stub-resolv.conf
dnsmasq[2314255]: reading /run/NetworkManager/no-stub-resolv.conf
dnsmasq[2314255]: using nameserver 172.27.1.253#53
dnsmasq[2314255]: using nameserver 172.27.1.254#53
dnsmasq[2314255]: read /etc/hosts - 35 addresses
> pkill -f -USR1 dnsmasq-example
dnsmasq[2314255]: time 1666000365
dnsmasq[2314255]: cache size 150, 0/0 cache insertions re-used unexpired
cache entries.
dnsmasq[2314255]: queries forwarded 0, queries answered locally 0
dnsmasq[2314255]: queries for authoritative zones 0
dnsmasq[2314255]: pool memory in use 0, max 0, allocated 0
dnsmasq[2314255]: server 172.27.1.253#53: queries sent 0, retried 0,
failed 0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2314255]: server 172.27.1.254#53: queries sent 0, retried 0,
failed 0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2314255]: server 9.9.9.9#53: queries sent 0, retried 0, failed
0, nxdomain replies 0, avg. latency 0ms
==== after backout of 553c4c9
==== * 504538b 2022-10-14 15:12:04.. (tag: backout) Revert "Fix massive
confusion on server reload." <Michael Eyrich>
> pkill -f -USR1 dnsmasq-example
dnsmasq[2306436]: time 1666000232
dnsmasq[2306436]: cache size 150, 0/0 cache insertions re-used unexpired
cache entries.
dnsmasq[2306436]: queries forwarded 0, queries answered locally 0
dnsmasq[2306436]: queries for authoritative zones 0
dnsmasq[2306436]: pool memory in use 0, max 0, allocated 0
dnsmasq[2306436]: server 9.9.9.9#53: queries sent 0, retried 0, failed
0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2306436]: server 8.8.8.8#53: queries sent 0, retried 0, failed
0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2306436]: server 172.27.1.253#53: queries sent 0, retried 0,
failed 0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2306436]: server 172.27.1.254#53: queries sent 0, retried 0,
failed 0, nxdomain replies 0, avg. latency 0ms
> touch /run/NetworkManager/no-stub-resolv.conf
dnsmasq[2306436]: reading /run/NetworkManager/no-stub-resolv.conf
dnsmasq[2306436]: using nameserver 9.9.9.9#53 for domain ct.de
dnsmasq[2306436]: using nameserver 8.8.8.8#53 for domain heise.de
dnsmasq[2306436]: using nameserver 172.27.1.253#53
dnsmasq[2306436]: using nameserver 172.27.1.254#53
dnsmasq[2306436]: using nameserver 9.9.9.9#53
dnsmasq[2306436]: read /etc/hosts - 35 addresses
> pkill -f -USR1 dnsmasq-example
dnsmasq[2306436]: time 1666000244
dnsmasq[2306436]: cache size 150, 0/0 cache insertions re-used unexpired
cache entries.
dnsmasq[2306436]: queries forwarded 0, queries answered locally 0
dnsmasq[2306436]: queries for authoritative zones 0
dnsmasq[2306436]: pool memory in use 0, max 0, allocated 0
dnsmasq[2306436]: server 9.9.9.9#53: queries sent 0, retried 0, failed
0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2306436]: server 8.8.8.8#53: queries sent 0, retried 0, failed
0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2306436]: server 172.27.1.253#53: queries sent 0, retried 0,
failed 0, nxdomain replies 0, avg. latency 0ms
dnsmasq[2306436]: server 172.27.1.254#53: queries sent 0, retried 0,
failed 0, nxdomain replies 0, avg. latency 0ms
Thanks for all you work on dnsmasq!
Michael
--
Michael Eyrich
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