On Sun, 23 Dec 2018 01:51:00 +0100 Wolfgang Walter <wolfgang.wal...@stwm.de> wrote: > Package: udev > Version: 240-1 > Severity: important > > After upgrading from 239-15 to 240-1 or higher my network setup breaks. > > The breakage is similar to the last one I reported (bug #904198) though > different in detail. > > This times all my vlan-devices on a physical device netint are first renamed > to renameX and than udev tries to rename them again but this time it tries to > give them all the name netint - which of course fails. > > A setup like the following one should be able to reproduce this problem: > > 10-netint.link: > [Match] > MACAddress=00:01:2e:77:a5:45 > > [Link] > Name=netint > WakeOnLan=off > > > netint.network: > [Match] > Name=netint > > [Network] > VLAN=kbs > LinkLocalAddressing=no > DHCP=no > > > kbs.link > [NetDev] > Name=kbs > Kind=vlan > > [VLAN] > Id=10 > > > > In the journal you should see something like > > kernel: rename31: renamed from kbs > .... > systemd-networkd[852]: kbs: Interface name change detected, kbs has been > renamed to rename31 > .... > [347]: kbs: Failed to rename network interface 31 from 'kbs' to 'netint': > Device or resource busy > .... > > > > Downgrading udev to 239-15 fixes it in principle that is this rename does not > happen. > > systemd-networkd from 240-1 though crashes with > > Assertion 'IN_SET(link->state, LINK_STATE_CONFIGURING, > LINK_STATE_CONFIGURING, LINK_STATE_FAILED, LINK_STATE_LINGER)' failed at > ../src/network/network/networkd-link.c:934, function address_handler(). > Aborting. > > Therefor I also had to downgrade systemd back to 239-15. >
Someone mentioned on IRC: <grawity> hmm, 917128 actually comes pre-broken <grawity> the reporter is applying renaming based purely on MACAddress, and that's *already* a problem when VLANs are involved <grawity> because they all have the same MAC address as the underlying physical interface <grawity> (which I found out the hard way years ago, with just udev .rules too) <grawity> so the only change is that it was a race previously and a crash now
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