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Description of problem: With dnsmasq-2.80-8.fc31, the DHCPv4 does not any more. And it also generates a flood of RA advertisement. After downgrade to dnsmasq-2.79-7.fc29, all goes well. Version-Release number of selected component (if applicable): dnsmasq-2.80-8.fc31.x86_64 How reproducible: 100% Steps to Reproduce: sudo ip link add dhcpcli type veth peer name dhcpsrv sudo ip link set up dhcpcli sudo ip netns add nmstate_test sudo ip link set dhcpsrv netns nmstate_test sudo ip netns exec nmstate_test ip link set up dhcpsrv sudo ip netns exec nmstate_test ip addr add 192.0.2.251/24 dev dhcpsrv sudo ip netns exec nmstate_test \ dnsmasq --dhcp-range=192.0.2.100,192.0.2.200,255.255.255.0 \ --interface=dhcpsrv sudo dhclient -d dhcpcli Actual results: DHCPv4 not work Expected results: DHCPv4 works Additional info:
Ok, confirm it is broken. Not sure yet for right reason. I tried to fix failing build on rawhide by quick support for SO_TIMESTAMP. I think that broken it completely. Would disable it and just skip SIOCGSTAMP if not defined.
Fixed in commit [1]. But removing SO_TIMESTAMP seems to fixed issue. It seems there is another issue with high CPU usage in all 2.80 versions. 1. https://src.fedoraproject.org/rpms/dnsmasq/c/bde34f977c037ecb05757b5feea0a05ba6c856ae
I've run into this as well. Rawhide host has no apparent problem; but any qemu-kvm guest has no network connection, because ipv4 isn't being assigned to the guest. In the working case, I see these lines in the host's journal, when the VM is starting up: [ 99.883685] fmac.local dnsmasq-dhcp[1112]: DHCPDISCOVER(virbr0) 52:54:00:7c:25:f9 [ 99.884350] fmac.local dnsmasq-dhcp[1112]: DHCPOFFER(virbr0) 192.168.122.175 52:54:00:7c:25:f9 [ 99.884663] fmac.local dnsmasq-dhcp[1112]: DHCPREQUEST(virbr0) 192.168.122.175 52:54:00:7c:25:f9 [ 99.884785] fmac.local dnsmasq-dhcp[1112]: DHCPACK(virbr0) 192.168.122.175 52:54:00:7c:25:f9 localhost-live Those lines don't exist in the non-working case. Updating to -9 or downgrading to -4 fixes the problem. https://kojipkgs.fedoraproject.org//packages/dnsmasq/2.80/9.fc31/x86_64/dnsmasq-2.80-9.fc31.x86_64.rpm
high cpu usage is filed here: https://bugzilla.redhat.com/show_bug.cgi?id=1739797
this bug is fixed by the -9 release
This bug appears to have been reported against 'rawhide' during the Fedora 31 development cycle. Changing version to 31.
This bug appears to have been reported against 'rawhide' during the Fedora 31 development cycle. Changing version to '31'.
FEDORA-2019-c8270fe288 has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2019-c8270fe288
dnsmasq-2.80-9.fc30 has been pushed to the Fedora 30 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-c8270fe288
dnsmasq-2.80-9.fc30 has been pushed to the Fedora 30 stable repository. If problems still persist, please make note of it in this bug report.