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23.7 Legacy Series / Re: [Tutorial/Call for Testing] Enabling Receive Side Scaling on OPNsense
« on: June 27, 2023, 08:16:22 pm »
Tried out the RSS feature for a few days on our OPNsense instance (23.1.9-amd64) and while the performance is great, we've run into some weird issues with internal system services not being able to resolve DNS requests. Disabling RSS seems to fix the issue. We are using the Intel ice driver with a 25GbE SOC based NIC. Machine in question: https://www.supermicro.com/en/products/system/iot/1u/sys-110d-20c-fran8tp
Specifically, pkg update and the GeoIP feature in the firewall cannot connect, and I tracked this down to a DNS issue. When running pkg update via CLI or the GUI it hangs on the fetching process, and when running it with debug you can see its stuck at the resolving DNS stage. The GeoIP feature has similar issues.
Interestingly, if you use ping from CLI or use the DNS diagnostic tool, the system resolves DNS requests totally fine. I enabled debug on Unbound and it doesn't appear to even receive the requests from pkg update or GeoIP downloads. Would love to get this fixed so we can use RSS since it handles our 10G symmetrical connection a lot better.
Specifically, pkg update and the GeoIP feature in the firewall cannot connect, and I tracked this down to a DNS issue. When running pkg update via CLI or the GUI it hangs on the fetching process, and when running it with debug you can see its stuck at the resolving DNS stage. The GeoIP feature has similar issues.
Interestingly, if you use ping from CLI or use the DNS diagnostic tool, the system resolves DNS requests totally fine. I enabled debug on Unbound and it doesn't appear to even receive the requests from pkg update or GeoIP downloads. Would love to get this fixed so we can use RSS since it handles our 10G symmetrical connection a lot better.
Code: [Select]
user@kappa:/usr/local/etc # pkg -ddddddd update
DBG(1)[34160]> pkg initialized
Updating OPNsense repository catalogue...
DBG(1)[34160]> PkgRepo: verifying update for OPNsense
DBG(1)[34160]> PkgRepo: need forced update of OPNsense
DBG(1)[34160]> Pkgrepo, begin update of '/var/db/pkg/repo-OPNsense.sqlite'
DBG(1)[34160]> Request to fetch pkg+https://pkg.opnsense.org/FreeBSD:13:amd64/23.1/latest/meta.conf
DBG(1)[34160]> opening libfetch fetcher
DBG(1)[34160]> Fetch > libfetch: connecting
DBG(1)[34160]> Fetch: fetching from: https://pkg.opnsense.org/FreeBSD:13:amd64/23.1/latest/meta.conf with opts "iv"
resolving server address: pkg.opnsense.org:443^ hangs here for a while before retrying and effectively goes no where.