Ifquery - Segmentation Fault

[Frank Pohle]

Three of my twelfe container have no access to the network. It seems to me that it relates to the last proxmox update.

dmesg shows the following message
ifquery [xxxxx]: segfault at 1 ip xxxxxx sp xxxxxx errer 4 in ifup[xxxxxx]

running Proxmox-ve 4.2.64
(see attached file for other information)

I found a bug-report of ubuntu 15, somehow a year ago.

Can you support ? Any ideas?

 

[t.lamprecht]

If found this one, maybe it helps you
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=819287 seems like a bug in the ifupdown package, what distro (and which release) is running in the containers?
Whats the
ifdown --version
output in the affected CTs?

 

[Frank Pohle]

Thank you Thomas...
Version 0.7.47.2 and Version 0.7.53.1
so different.. but similar effects....

 

[t.lamprecht]

So what is the distro from the failing CTs?
And did you update the containers recently? If yes I'd suggest going back to the working ifupdown package from the apt cache.

You may try to use the iproute2 tools to manage the network inside the CTs as a (clunky) workaround, e.g.:

ip link set eth0 up
ip addr add 192.168.30.77/20 dev eth0
ip route add default via 192.168.16.1 dev eth0

Or at least, if this works, this would show that its really a problem with ifupdown.