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- trusty' to 'verification-done-trusty'.
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-trusty ** Tags added: verification-needed-utopic -- 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/1465136 Title: NVMe shutdown and suspend delay time is too short Status in linux package in Ubuntu: Fix Released Status in linux-lts-utopic package in Ubuntu: Fix Committed Status in linux-lts-utopic source package in Trusty: Fix Committed Status in linux source package in Utopic: Fix Committed Bug description: A hardware vendor reported that NVMe didn't implement power management correctly during shutdown/restart and suspend/resume as below: ================================= However, when it comes to shutdown/restart, the Power Management Events (PME) are not correctly implemented. When the host (Linux/Driver) sends the PME_TURN_OFF message it should wait for PME_TO_ACK from the device. Microsoft Windows versions typically wait for 5 seconds. The Linux OSes doesn't wait for the PME_TO_ACK from the device and simply turns off the system instantly immediately after the shutdown/restart. This is not the way to treat PCIe storage devices. The host should allow the device to properly shutdown. Otherwise the disk will go in to rebuild during next power on which takes a while resulting in OS finding the device not responding and disabling it and not loading the driver for it. ================================= To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1465136/+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