This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- vivid' to 'verification-done-vivid'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-vivid -- 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/1498778 Title: cpu hot-remove fails with nvme device Status in HWE Next: In Progress Status in linux package in Ubuntu: In Progress Status in linux source package in Vivid: Fix Committed Bug description: Using cpu hotplug to disable (offline) a cpu: echo 0 > /sys/devices/system/cpu/cpu10/online does not return. Machine is usable, and cpu10 is marked as offline, but any test scripts hangs because the "echo 0" never returned. Doing bisect pointed to this commit id: a4aea5623d "NVMe: Convert to blk-mq" Indeed, the test machine in question has an NVMe card. Doing "rmmod nvme" and then disabling cpus works. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1498778/+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
