Re: Change channel bandwidth without iw command

2014-10-26 Thread Okhwan Lee
 Hi,  Thanks for your help. We just disable some functions step by step.  Then we can conclude that wait_for_completion_timeout makes kernel panic.  We guess that monitor vdev stopping after reception of a Action frame requires more time than the case when using iw command.  Instead of wait_for_

Re: Change channel bandwidth without iw command

2014-10-24 Thread Michal Kazior
On 24 October 2014 13:30, Okhwan Lee wrote: > Hi, > > This linked images are the printed error messages when the kernel is in panic. > http://www.mwnl.snu.ac.kr/~ohlee/1.jpg > http://www.mwnl.snu.ac.kr/~ohlee/2.jpg Thanks. Panic doesn't seem to include anything directly related to ath10k which

Re: Change channel bandwidth without iw command

2014-10-24 Thread Okhwan Lee
 Hi,  This linked images are the printed error messages when the kernel is in panic.  http://www.mwnl.snu.ac.kr/~ohlee/1.jpg http://www.mwnl.snu.ac.kr/~ohlee/2.jpg Thank you for your help. Okhwan -- Okhwan Lee Sent with Airmail 켜짐 2014년 10월 24일 에서 오후 4:49:23, Michal Kazior (michal.kaz...

Re: Change channel bandwidth without iw command

2014-10-24 Thread Michal Kazior
On 23 October 2014 08:57, Okhwan Lee wrote: > Hi, > > Thank you for your answer. > >> The panic printout would be most helpful. My best guess is this >> crashes in ath10k_dbg() at the very beginning of ath10k_config_chan >> because ar->chandef.chan is NULL. This is probably the case since you >> u

Re: Change channel bandwidth without iw command

2014-10-22 Thread Okhwan Lee
Hi, Thank you for your answer. > The panic printout would be most helpful. My best guess is this > crashes in ath10k_dbg() at the very beginning of ath10k_config_chan > because ar->chandef.chan is NULL. This is probably the case since you > use monitor_chandef which is probably "empty" at the poi

Re: Change channel bandwidth without iw command

2014-10-22 Thread Michal Kazior
On 22 October 2014 12:14, Okhwan Lee wrote: > Hi, > > We are trying to implement a protocol to evaluate the performance our > algorithm using QCA9880. > > To implement our protocol, a receiver have to change the bandwidth > when a Action frame (what we define) is successfully received. > We know t

Change channel bandwidth without iw command

2014-10-22 Thread Okhwan Lee
Hi, We are trying to implement a protocol to evaluate the performance our algorithm using QCA9880. To implement our protocol, a receiver have to change the bandwidth when a Action frame (what we define) is successfully received. We know that the QCA9880 can change bandwidth by using iw command in