This bug was fixed in the package linux - 4.4.0-135.161 --------------- linux (4.4.0-135.161) xenial; urgency=medium
* linux: 4.4.0-135.161 -proposed tracker (LP: #1788766) * [Regression] APM Merlin boards fail to recover link after interface down/up (LP: #1785739) - net: phylib: fix interrupts re-enablement in phy_start - net: phy: fix phy_start to consider PHY_IGNORE_INTERRUPT * qeth: don't clobber buffer on async TX completion (LP: #1786057) - s390/qeth: don't clobber buffer on async TX completion * nvme: avoid cqe corruption (LP: #1788035) - nvme: avoid cqe corruption when update at the same time as read * CacheFiles: Error: Overlong wait for old active object to go away. (LP: #1776254) - cachefiles: Fix missing clear of the CACHEFILES_OBJECT_ACTIVE flag - cachefiles: Wait rather than BUG'ing on "Unexpected object collision" * fscache cookie refcount updated incorrectly during fscache object allocation (LP: #1776277) // fscache cookie refcount updated incorrectly during fscache object allocation (LP: #1776277) - fscache: Fix reference overput in fscache_attach_object() error handling * FS-Cache: Assertion failed: FS-Cache: 6 == 5 is false (LP: #1774336) - Revert "UBUNTU: SAUCE: CacheFiles: fix a read_waiter/read_copier race" - fscache: Allow cancelled operations to be enqueued - cachefiles: Fix refcounting bug in backing-file read monitoring * linux-cloud-tools-common: Ensure hv-kvp-daemon.service starts before walinuxagent.service (LP: #1739107) - [Debian] hyper-v -- Ensure that hv-kvp-daemon.service starts before walinuxagent.service -- Khalid Elmously <khalid.elmou...@canonical.com> Sun, 26 Aug 2018 23:56:50 -0400 ** Changed in: linux (Ubuntu Xenial) Status: Fix Committed => Fix Released -- 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/1785739 Title: [Regression] APM Merlin boards fail to recover link after interface down/up Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Released Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Released Bug description: [Impact] On an APM Merlin (X-Gene2) board, the onboard 1G interface fails to re-establish link when the interface is brought down and back up. Juju + MAAS provider does this after every install (so to configure a bridge), making this config unusable. This was actually a regression introduced by the fix for LP: #1632739 in 4.4.0-48.69. [Test Case] 1) From a remote system, start a ping to the IP address of the Merlin board's eth0 interface. 2) On the merlin board: sudo ifdown eth0; sudo ifup eth0 3) Ping should recover, but doesn't [Fix] commit 84a527a41f38a80353f185d05e41b021e1ff672b Author: Shaohui Xie <shaohui....@nxp.com> Date: Tue May 10 17:42:26 2016 +0800 net: phylib: fix interrupts re-enablement in phy_start [Regression Risk] The fix appears to be straightforward - don't enable interrupts on a phy that does not have a valid interrupt. Fixes are upstream, so any regressions should get upstream support for fixing. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1785739/+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