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[Kamal Mostafa <kamal@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
       Status: Fix Released => Confirmed

** Changed in: linux (Ubuntu Xenial)
       Status: Fix Released => Confirmed

** Changed in: linux (Ubuntu Yakkety)
       Status: Fix Released => Confirmed

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https://bugs.launchpad.net/bugs/1626894

Title:
  nvme drive probe failure

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Confirmed
Status in linux source package in Yakkety:
  Confirmed

Bug description:
  After upgrading from linux-image-4.4.0-38-generic to proposed update
  linux-image-4.4.0-39-generic, NVMe drives are no longer working. dmesg
  shows a probe failure.

  On the previous kernel version everything is working as expected.
  ----------------->%-----------------
  [    1.005243] Hardware name: FUJITSU D3417-B1/D3417-B1, BIOS V5.0.0.11 R1.12.0.SR.2 for D3417-B1x               04/01/2016
  [    1.005349] Workqueue: events nvme_remove_dead_ctrl_work [nvme]
  [    1.005484]  0000000000000286 00000000b6c91251 ffff880fe6e8bce0 ffffffff813f1f83
  [    1.005800]  ffff880fe02150f0 ffffc90006a7c000 ffff880fe6e8bd00 ffffffff8106bdff
  [    1.006117]  ffff880fe02150f0 ffff880fe0215258 ffff880fe6e8bd10 ffffffff8106be3c
  [    1.006433] Call Trace:
  [    1.006509]  [<ffffffff813f1f83>] dump_stack+0x63/0x90
  [    1.006589]  [<ffffffff8106bdff>] iounmap.part.1+0x7f/0x90
  [    1.006668]  [<ffffffff8106be3c>] iounmap+0x2c/0x30
  [    1.006770]  [<ffffffffc007a64a>] nvme_dev_unmap.isra.35+0x1a/0x30 [nvme]
  [    1.007048]  [<ffffffffc007b75e>] nvme_remove+0xce/0xe0 [nvme]
  [    1.007140]  [<ffffffff81443409>] pci_device_remove+0x39/0xc0
  [    1.007220]  [<ffffffff815549f1>] __device_release_driver+0xa1/0x150
  [    1.007301]  [<ffffffff81554ac3>] device_release_driver+0x23/0x30
  [    1.007382]  [<ffffffff8143be7a>] pci_stop_bus_device+0x8a/0xa0
  [    1.007462]  [<ffffffff8143bfca>] pci_stop_and_remove_bus_device_locked+0x1a/0x30
  [    1.007559]  [<ffffffffc007a09c>] nvme_remove_dead_ctrl_work+0x3c/0x50 [nvme]
  [    1.007642]  [<ffffffff8109a3e5>] process_one_work+0x165/0x480
  [    1.007722]  [<ffffffff8109a74b>] worker_thread+0x4b/0x4c0
  [    1.007801]  [<ffffffff8109a700>] ? process_one_work+0x480/0x480
  [    1.007881]  [<ffffffff810a0928>] kthread+0xd8/0xf0
  [    1.007959]  [<ffffffff810a0850>] ? kthread_create_on_node+0x1e0/0x1e0
  [    1.008041]  [<ffffffff81831a8f>] ret_from_fork+0x3f/0x70
  [    1.008120]  [<ffffffff810a0850>] ? kthread_create_on_node+0x1e0/0x1e0
  [    1.008222] Trying to free nonexistent resource <00000000f7100000-00000000f7103fff>
  [    1.008276] genirq: Flags mismatch irq 0. 00000080 (nvme1q0) vs. 00015a00 (timer)
  [    1.008281] Trying to free nonexistent resource <000000000000d000-000000000000d0ff>
  [    1.008282] nvme 0000:02:00.0: Removing after probe failure
  [    1.008645] Trying to free nonexistent resource <000000000000e000-000000000000e0ff>
  [    1.027213] iounmap: bad address ffffc90006ae0000
  [    1.027456] CPU: 2 PID: 86 Comm: kworker/2:1 Not tainted 4.4.0-39-generic #59-Ubuntu
  -----------------%<-----------------

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