I installed the kernel 4.4.0 provided by jsalisbury. This works for me:
$ uname -a
Linux media-desktop 4.4.0-64-generic #85~lp1666421 SMP Wed Feb 22 21:37:35 UTC
2017 x86_64 x86_64 x86_64 GNU/Linux
$ lsusb | grep "Edimax"
Bus 001 Device 002: ID 7392:7822 Edimax Technology Co., Ltd
$ ifconfig wlx74da3894b952
wlx74da3894b952: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.52 netmask 255.255.255.0 broadcast 192.168.1.255
ether 74:da:38:94:b9:52 txqueuelen 1000 (Ethernet)
RX packets 3327 bytes 2122333 (2.1 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2755 bytes 370569 (370.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
I don't know much about the different kernel versions. Would It be
possible to apply the modification to the 4.8.0 kernel as well, so I can
test that, too?
I tested
* booting without device attached, then attaching it after boot.
* booting with device attached.
Both works fine. Should I test anything else?
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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:
In Progress
Status in linux source package in Yakkety:
In Progress
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.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1669815/+subscriptions
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