On Fri, 25 Jun 2021 17:33:04 -0400 Tom Horsley horsley1953@gmail.com wrote:
On Fri, 25 Jun 2021 14:20:30 -0700 ToddAndMargo via users wrote:
Kernel 5.12.12-300 breaks host resolution https://bugzilla.redhat.com/show_bug.cgi?id=1976371
Very weird that the kernel could break name resolution since that all works at library level. Maybe some "deprecated" interface is being used by 99% of the lookup code, and they got rid of it completely in the new kernel?
I had name resolution break on one of my F34 computers after the latest kernel update. Restarting systemd-resolved fixed the problem. I rebooted and the same thing happened: no DNS until systemd-resolved was restarted.
None of systemctl status, dmesg, or journalclt showed anything suspicious or interesting.
My other Fedora computers are fine. I suspect the difference is that the problem computer is using bridged networking instead of a direct ethernet connection. Perhaps a timing issue with the bridge?
Jim