Looks there isn't crash during the ifconfig up/down test any more after applying the patch in the following link, but ifconfig still may hang during the test:
https://www.mail-archive.com/netdev@vger.kernel.org/msg88060.html See test log in the attachment. ** Attachment added: "ifconfig hangs during ifconfig up/down test" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507653/+attachment/4524380/+files/enet-ifconfig-down-up.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1507653 Title: Wily kernel crashed when running ifconfig eth0 up/done test To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507653/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs