[Bug 1585863] Re: WiFi malfunction after suspend & resume stress

[Shih-Yuan Lee]

I can also reproduce the same issue on my own Lenovo ThinkPad X200.

03:00.0 Ethernet controller [0200]: Qualcomm Atheros AR242x / AR542x Wireless Network Adapter (PCI-Express) [168c:001c] (rev 01)
	Subsystem: Qualcomm Atheros AR242x / AR542x Wireless Network Adapter (PCI-Express) [168c:0035]
...
	Kernel driver in use: ath5k
	Kernel modules: ath5k

** Description changed:

- Description:    Ubuntu Yakkety Yak (development branch)                                                                                                                                                                                
+ Description:    Ubuntu Yakkety Yak (development branch)
  Release:        16.10
  Packages:
- libnm-glib-vpn1:amd64   1.2.2-0ubuntu2                                                                                                                                                                                                 
+ libnm-glib-vpn1:amd64   1.2.2-0ubuntu2
  libnm-glib4:amd64       1.2.2-0ubuntu2
  libnm-util2:amd64       1.2.2-0ubuntu2
  libnm0:amd64    1.2.2-0ubuntu2
  network-manager 1.2.2-0ubuntu2
  
  Reproduce steps:
  1. Install fwts by `sudo apt-get install fwts`.
  2. Run the suspend & resume stress test.
- sudo fwts s3 --s3-multiple=30 --s3-min-delay=10 --s3-max-delay=10 --s3-delay-delta=5
+ sudo fwts s3 --s3-multiple=30 --s3-min-delay=5 --s3-max-delay=5 --s3-delay-delta=5
  
  Expected result:
  The WiFi still functioned.
  
  Actual result:
  The WiFi can not connect to any access point and we have to execute `sudo wpa_cli scan` manually to make it work again.
  
  P.S. Ubuntu 16.04 also has the same issue.

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Title:
  WiFi malfunction after suspend & resume stress

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