On Fri, 2013-12-13 at 13:54 +0200, Luciano Coelho wrote: > Hi, > > More changes, hopefully the last ones for this series. ;) > > I have hacked wpa_supplicant to support CSA in IBSS, so I could test > it too. I created some ma80211_hwsim testcases on top of this. The > tests now pass, though I get some semi-random WARNs [1] when using 3 > stations. It seems to be a race condition and it doesn't seem to be > related to this series, so I think we should address it separately > (Simon, hint! ;). Forgot the reference. Here it is: [1] Sporadic warning during IBSS CSA: [ 65.601056] ------------[ cut here ]------------ [ 65.601057] WARNING: CPU: 0 PID: 6 at net/mac80211/ibss.c:491 ieee80211_ibss_csa_beacon+0x30f/0x320() [ 65.601058] Modules linked in: [ 65.601059] CPU: 0 PID: 6 Comm: kworker/u8:0 Tainted: G W 3.12.0-rc1+ #76 [ 65.601060] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 65.601061] Workqueue: phy2 ieee80211_iface_work [ 65.601063] 0000000000000009 ffff88000696b950 ffffffff817a035c 0000000000000000 [ 65.601065] ffff88000696b988 ffffffff810649c8 ffff880000014b00 00000000ffffffea [ 65.601066] 0000000000000000 ffff88000696ba68 ffff880005e8ca00 ffff88000696b998 [ 65.601067] Call Trace: [ 65.601069] [<ffffffff817a035c>] dump_stack+0x54/0x74 [ 65.601070] [<ffffffff810649c8>] warn_slowpath_common+0x78/0xa0 [ 65.601072] [<ffffffff81064aa5>] warn_slowpath_null+0x15/0x20 [ 65.601073] [<ffffffff8171c0cf>] ieee80211_ibss_csa_beacon+0x30f/0x320 [ 65.601075] [<ffffffff81730680>] ieee80211_channel_switch+0x620/0x870 [ 65.601077] [<ffffffff81730149>] ? ieee80211_channel_switch+0xe9/0x870 [ 65.601079] [<ffffffff81718bec>] ieee80211_ibss_process_chanswitch+0x2ec/0x340 [ 65.601080] [<ffffffff8171c9e7>] ieee80211_ibss_rx_queued_mgmt+0x477/0x8d0 [ 65.601082] [<ffffffff810d6048>] ? __lock_acquire+0x408/0x1d50 [ 65.601084] [<ffffffff8171e434>] ieee80211_iface_work+0x274/0x360 [ 65.601085] [<ffffffff81086e61>] process_one_work+0x201/0x6b0 [ 65.601087] [<ffffffff81086df6>] ? process_one_work+0x196/0x6b0 [ 65.601088] [<ffffffff81087429>] worker_thread+0x119/0x3a0 [ 65.601090] [<ffffffff81087310>] ? process_one_work+0x6b0/0x6b0 [ 65.601091] [<ffffffff8108f358>] kthread+0xe8/0xf0 [ 65.601094] [<ffffffff8108f270>] ? insert_kthread_work+0x70/0x70 [ 65.601095] [<ffffffff817b29cc>] ret_from_fork+0x7c/0xb0 [ 65.601097] [<ffffffff8108f270>] ? insert_kthread_work+0x70/0x70 [ 65.601098] ---[ end trace 5ff67f51ef1f40bb ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
