On 01/08/2017 07:41 PM, l...@pengaru.com wrote:
Hello list,
Gave 4.10-rc2 a shot today using the attached config. The kernel panics
with a NULL pointer dereference upon starting dhclient after
wpa_supplicant.
The network device is a USB dongle:
Bus 002 Device 002: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n
Wireless Adapter [Realtek RTL8188CUS]
Reverting 'ba9f93f rtlwifi: Fix enter/exit power_save' prevents the
crash.
Sorry I don't have a verbatim capture of the panic, but I was able to
catch the relevant parts and rtl_lps_leave() is dereferencing a NULL hw,
below setup_arp_tx() and rtl_is_special_data(). That's what led me to
reverting ba9f93f since it clearly plays with that stuff.
FWIW machine is a plain X61s thinkpad, 1.8Ghz.
You need the patch from
http://marc.info/?l=linux-wireless&m=148234081512703&w=2. It was pushed with the
notation that it needed to be included in 4.10; however, it has not yet
percolated through the system.
Larry
