Hello Simon, all, Recently, I noticed many traces (find a sample attached) in situations when wpa_supplicant is running but no appropriate access-point available.
I started a bisect and ended at commit 3aede78aad2a7e (mac80211: change IBSS channel state to chandef). Please let me know if you need more information to inspect this problem. Best regards, Dirk ------------------------------------------------------------------------ Oct 21 13:56:06 lena kernel: ------------[ cut here ]------------ Oct 21 13:56:06 lena kernel: WARNING: CPU: 0 PID: 1550 at net/wireless/chan.c:373 cfg80211_chandef_usable+0x30/0x15f() Oct 21 13:56:06 lena kernel: Modules linked in: brcmsmac cordic brcmutil bcma Oct 21 13:56:06 lena kernel: CPU: 0 PID: 1550 Comm: kworker/u4:5 Tainted: G W 3.12.0-rc6+ #20 Oct 21 13:56:06 lena kernel: Hardware name: LENOVO 08946MG/MoutCook, BIOS 33CN14WW 05/10/2010 Oct 21 13:56:06 lena kernel: Workqueue: phy0 ieee80211_iface_work Oct 21 13:56:06 lena kernel: 0000000000000000 0000000000000009 ffffffff8161e3c7 0000000000000000 Oct 21 13:56:06 lena kernel: ffffffff81068b00 ffff88006f8be7c0 ffffffff815e79e4 0000000000000000 Oct 21 13:56:06 lena kernel: 000000000000000f ffff8800703e5dc2 ffff8800703e5d50 ffff88006f8bc200 Oct 21 13:56:06 lena kernel: Call Trace: Oct 21 13:56:06 lena kernel: [<ffffffff8161e3c7>] ? dump_stack+0x50/0x80 Oct 21 13:56:06 lena kernel: [<ffffffff81068b00>] ? warn_slowpath_common+0x73/0x8b Oct 21 13:56:06 lena kernel: [<ffffffff815e79e4>] ? cfg80211_chandef_usable+0x30/0x15f Oct 21 13:56:06 lena kernel: [<ffffffff815e79e4>] ? cfg80211_chandef_usable+0x30/0x15f Oct 21 13:56:06 lena kernel: [<ffffffff815f7c2e>] ? __ieee80211_sta_join_ibss+0x162/0x6e2 Oct 21 13:56:06 lena kernel: [<ffffffff8161b8cd>] ? printk+0x4f/0x54 Oct 21 13:56:06 lena kernel: [<ffffffff815f8439>] ? ieee80211_sta_create_ibss+0xc8/0xce Oct 21 13:56:06 lena kernel: [<ffffffff815f91ed>] ? ieee80211_ibss_work+0x255/0x3c5 Oct 21 13:56:06 lena kernel: [<ffffffff8107addb>] ? process_one_work+0x1c7/0x2e6 Oct 21 13:56:06 lena kernel: [<ffffffff81078c58>] ? pwq_activate_delayed_work+0x1e/0x28 Oct 21 13:56:06 lena kernel: [<ffffffff8107b346>] ? worker_thread+0x1cb/0x2c4 Oct 21 13:56:06 lena kernel: [<ffffffff8107b17b>] ? rescuer_thread+0x25c/0x25c Oct 21 13:56:06 lena kernel: [<ffffffff8107ff37>] ? kthread+0xad/0xb5 Oct 21 13:56:06 lena kernel: [<ffffffff81080000>] ? kthread_create_on_node+0xc1/0x115 Oct 21 13:56:06 lena kernel: [<ffffffff8107fe8a>] ? kthread_freezable_should_stop+0x3b/0x3b Oct 21 13:56:06 lena kernel: [<ffffffff816247bc>] ? ret_from_fork+0x7c/0xb0 Oct 21 13:56:06 lena kernel: [<ffffffff8107fe8a>] ? kthread_freezable_should_stop+0x3b/0x3b Oct 21 13:56:06 lena kernel: ---[ end trace ade89af8f1b5d90f ]--- ------------------------------------------------------------------------ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
