On 25 April 2016 at 18:19, Amato Carbonara <[email protected]> wrote: > Hello, > I recently updated the Linux kernel to latest stable release (4.5.1 > and 4.5.2) and long term support releases (4.4.7 and 4.4.8). With the > aforementioned kernel releases, the QCA988x chip was unable to be > placed in monitor mode. > > More information: > > OS = Ubuntu 14.04 LTS > WiFi chip = QCA988x > Firmware = ath10k > Version = 10.2.4.70.37-2 > > Commands used to enter WiFi adapter into monitor mode: > ifconfig wlan1 down > iw dev wlan1 set type monitor > ifconfig wlan1 up > > After entering the last command (ifconfig wlan1 up), the following > error is displayed: > SIOCSIFFLAGS: Cannot send after transport endpoint shutdown > > No error is displayed when using kernel version 4.3.3 > I noticed the problem when I upgraded to 4.4.7 and 4.5.1
FWIW Both 4.5.y and 4.4.y don't have a fix for monitor crashes[1]. [1]: https://patchwork.kernel.org/patch/8481281/ I'm guessing the other don't have it as well. It'd be helpful if you could post kernel log as I suspect there's a FW crash dump there. To make things really certain I'd suggest to load ath10k_core with debug_mask=0xffffff3f and post the kernel log to pastebin to confirm. Michał _______________________________________________ ath10k mailing list [email protected] http://lists.infradead.org/mailman/listinfo/ath10k
