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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1494593

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1494593

Title:
  Marvell's W8897 WLAN/BT combo card doesn't work from time to time

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  On cold boot, the W8897 sometimes won't work. And even if it works,
  the card would fail after reboot. Even more, sometimes it would
  vanished from PCI bus.

  There's a race between mwifiex_pcie and mwifiex_usb which causes this
  issue. Currently as a workaround we can blacklist mwifiex_usb. Marvell
  is still working on a solution.

  PCI ID:
  02:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. Device [11ab:2b38]

  USB ID:
  Bus 001 Device 003: ID 1286:2045 Marvell Semiconductor, Inc.

  And the info in dmesg:
  [ 7.561183] mwifiex: rx work enabled, cpus 8
  [ 8.726729] mwifiex: rx work enabled, cpus 8
  [ 8.727110] usbcore: registered new interface driver mwifiex_usb
  [ 8.796120] usb 1-6: info: FW download over, size 0 bytes
  [ 8.796123] usb 1-6: info: mwifiex_fw_dpc: unregister device
  [ 9.361595] mwifiex_pcie 0000:02:00.0: info: FW download over, size 759128 bytes
  [ 19.760514] mwifiex_pcie 0000:02:00.0: PCI-E is not the winner <0xffffffff,1>, exit dnld
  [ 19.760519] mwifiex_pcie 0000:02:00.0: FW failed to be active in time
  [ 19.760522] mwifiex_pcie 0000:02:00.0: info: mwifiex_fw_dpc: unregister device

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