I also built an Artful test kernel with a back port of commit 510c321, which required commit 9620fef27ed2 as a prereq.
The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1746474/artful Can you test this kernel and see if it resolves this bug? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1746474 Title: unregister_netdevice: waiting for eth0 to become free. Usage count = 5 Status in linux package in Ubuntu: In Progress Status in linux source package in Artful: In Progress Status in linux source package in Bionic: In Progress Bug description: This occurs when tearing down an LXD container. LXD monitor process hangs with the following stack: $ sudo cat /proc/27043/stack [<ffffffff8af0022e>] msleep+0x2e/0x40 [<ffffffff8b5dc9cf>] netdev_run_todo+0x11f/0x310 [<ffffffff8b5e9d4d>] rtnetlink_rcv+0x2d/0x30 [<ffffffff8b612cdc>] netlink_unicast+0x18c/0x240 [<ffffffff8b61306d>] netlink_sendmsg+0x2dd/0x3c0 [<ffffffff8b5b8f08>] sock_sendmsg+0x38/0x50 [<ffffffff8b5b99c3>] ___sys_sendmsg+0x2e3/0x2f0 [<ffffffff8b5ba354>] __sys_sendmsg+0x54/0x90 [<ffffffff8b5ba3a2>] SyS_sendmsg+0x12/0x20 [<ffffffff8ae03a7b>] do_syscall_64+0x5b/0xc0 [<ffffffff8b800257>] entry_SYSCALL64_slow_path+0x8/0x8 [<ffffffffffffffff>] 0xffffffffffffffff Issue submitted to LXD as well ([1]), though as indicated there, it seems to be a kernel bug. [1] https://github.com/lxc/lxd/issues/4208 ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.13.0-32-generic 4.13.0-32.35~16.04.1 ProcVersionSignature: Ubuntu 4.13.0-32.35~16.04.1-generic 4.13.13 Uname: Linux 4.13.0-32-generic x86_64 NonfreeKernelModules: zfs zunicode zavl zcommon znvpair ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 Date: Wed Jan 31 11:42:59 2018 InstallationDate: Installed on 2016-11-09 (447 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) SourcePackage: linux-hwe UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1746474/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
