Description of problem: When creating a tunnel, the system freezes. Version-Release number of selected component (if applicable): Linux jezevec 4.2.5-201.fc22.x86_64 #1 SMP Wed Oct 28 20:00:23 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux iproute-3.16.0-4.fc22.x86_64 kernel-4.1.8-200.fc22.x86_64 kernel-4.2.3-200.fc22.x86_64 kernel-4.2.5-201.fc22.x86_64 How reproducible: always Steps to Reproduce: $ sudo ip tun add tun0 mode gre remote `resolveip -s x.y.z.redhat.com` local A.B.C.D ttl 255 $ sudo ip a a 172.25.1.2/32 dev tun0 $ sudo ip l s dev tun0 up Actual results: Freeze, nothing in logs. Expected results: tunnel is doing it's tunneling stuff Additional info:
I was able to reproduce two or three times in row and now I cannot.
*** This bug has been marked as a duplicate of bug 1272571 ***
Reproduced on Linux jezevec 4.2.6-200.fc22.x86_64 #1 SMP Tue Nov 10 16:45:19 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux again, but then It worked fine. I am still unsure what is different between the reproducing and not-reproducing steps I do.