On 18 October 2016 at 11:13, Marc Haber <mh+debian-b...@zugschlus.de> wrote: > Version: 231-9 > thanks > > On Tue, Aug 23, 2016 at 02:34:56PM -0300, Felipe Sateler wrote: >> On 23 August 2016 at 13:22, Marc Haber <mh+debian-b...@zugschlus.de> wrote: >> > this is a monster. But relax. Severity: minor. >> > >> > I am doing virtualization on an AMD APU machine (pc-engines.ch APU2). >> > The network setup is rather complex, with multiple physical >> > interfaces, bridges and VLANs. systemd-networkd is unable to bring up >> > this configuration in the first try most of the time. About once in >> > ten tries, it works. In the other cases, multiple invocations of >> > systemd-networkd restart are needed until the machine has its network >> > fully initialized. >> >> The notworking.txt file has this on all failed starts, and it is not >> present in the working start nor the working.txt file: >> >> Aug 23 16:20:33 prom systemd-networkd[XXX]: Event source >> 0x55ff6e8ec070 returned error, disabling: No buffer space available >> >> So I suppose your config is simply too large and some queue is filling >> up as systemd-networkd is taking too long to process it. >> Unfortunately this message is very unhelpful (it was improved in >> version 229), >> so it is hard to guess which queue it is. > > I was not able to reproduce this at all in a VM, and not on another > (older) APU with identical software and network setup. I have thus > done some experiments with the live system and can confirm that using > a newer systemd (I simply added stretch to sources-list and did apt -t > stretch install systemd/stretch which surely pulled in some extra > libraries as well) helps, and the phenomenon is gone.
Thanks for confirming that the problem is not present in newer systemd versions. > > After reverting to the LVM snapshots made before these experiments, > the issue is back again. As I am now reasonably sure that the issue > will be gone in stretch, I am marking this bug as solved with version > 231-9, the systemd version currently in stretch. FWIW, there is a backport of 230-7 in jessie-backports, this might be useful too, depending on your feelings towards backports. -- Saludos, Felipe Sateler