** Summary changed:

- Kernel panic when plugging in USB Wifi USB Adapter
+ Kernel panic when plugging in USB Wifi USB adapter

** Package changed: ubuntu => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1669815

Title:
  Kernel panic when plugging in USB Wifi USB adapter

Status in linux package in Ubuntu:
  New

Bug description:
  Since updating my Lubuntu 16.10 system (linux-image-4.8.0-37-generic to 
linux-image-4.8.0-38-generic) the kernel panics as soon as I plug in the Wifi 
adapter (Edimax EW-7612UAn Wifi USB Adapter).
  The coredump logs
  BUG: unable to handle kernel NULL pointer dereference @0000000000000048
  IP: [<ffffffffc0786647>] rtl_lps_leave+0x17/0x50 [rtlwifi]
  PGD 0
  Ooops: 0000 [#1] SMP
  This is followed by the Modules linked in, Hardware info, Stack trace.
  At the end of the trace it says:
  Kernel panic - not syncing: Fatal exception in interrupt.

  I uploaded a console screenshot here: IMG_20170222_230239.jpg
  and I didn't find anything suspicious in syslog or kernel log, most probably 
because the kernel panics almost instantly after plugging the usb adapter in.

  Updating to linux-image-4.8.0-39-generic does not solve the issue as
  well.

  Only way to work around the issue is to select the 4.8.0-37 image from the 
grub bootmenu.
  The problem is not related to a specific USB port.

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