Hi, I just found this BUG in my kernel log[2]. This Ralink RT5372 USB adapter (148f:5372) was in AP mode with wireshark (dumpcap) enabled. Four seconds hereafter, a DHCP client connected so I guess it occurred during association or authentication. This is almost 3.13-rc5, v3.13-rc4-256-gb7000ad. .config is available in this repo[1]. Let me know if you need more information. Happy holidays! Regards, Peter PS. the git tree item in MAINTAINERS is broken. [1]: https://github.com/Lekensteyn/aur/blob/d8c591b/linux-custom/config [2]: [29055.180376] device wlan1 entered promiscuous mode [30017.470835] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616 [30017.470840] in_atomic(): 0, irqs_disabled(): 0, pid: 432, name: wpa_supplicant [30017.470843] 4 locks held by wpa_supplicant/432: [30017.470845] #0: (cb_lock){++++++}, at: [<ffffffff8151c3f9>] genl_rcv+0x19/0x40 [30017.470856] #1: (genl_mutex){+.+.+.}, at: [<ffffffff8151df02>] genl_rcv_msg+0xc2/0xd0 [30017.470861] #2: (rtnl_mutex){+.+.+.}, at: [<ffffffff814fdc97>] rtnl_lock+0x17/0x20 [30017.470870] #3: (rcu_read_lock){.+.+..}, at: [<ffffffffa038efd5>] ieee80211_get_key+0x5/0x2f0 [mac80211] [30017.470895] CPU: 2 PID: 432 Comm: wpa_supplicant Tainted: G O 3.13.0-rc4-custom-00256-gb7000ad #1 [30017.470897] Hardware name: CLEVO CO. B7130 /B7130 , BIOS 6.00 08/27/2010 [30017.470899] 0000000000000000 ffff880037b87870 ffffffff815da1f9 ffff88019630ea00 [30017.470903] ffff880037b87880 ffffffff81076a7d ffff880037b878f0 ffffffff815dde6c [30017.470907] ffff880037b878b0 ffffffff815e2152 ffff880197cc25c0 0000000000000292 [30017.470911] Call Trace: [30017.470917] [<ffffffff815da1f9>] dump_stack+0x4e/0x7a [30017.470923] [<ffffffff81076a7d>] __might_sleep+0xed/0x120 [30017.470928] [<ffffffff815dde6c>] mutex_lock_nested+0x3c/0x400 [30017.470931] [<ffffffff815e2152>] ? _raw_write_unlock_irqrestore+0x42/0x70 [30017.470936] [<ffffffff8117a40c>] ? create_object+0x23c/0x2f0 [30017.470940] [<ffffffffa05d832c>] rt2x00usb_vendor_request_buff+0x3c/0xd0 [rt2x00usb] [30017.470972] [<ffffffffa05f61a3>] rt2x00usb_register_multiread+0x33/0x40 [rt2800usb] [30017.470983] [<ffffffffa05e1638>] rt2800_get_tkip_seq+0x48/0x80 [rt2800lib] [30017.471004] [<ffffffffa038f22b>] ieee80211_get_key+0x25b/0x2f0 [mac80211] [30017.471024] [<ffffffffa038efd5>] ? ieee80211_get_key+0x5/0x2f0 [mac80211] [30017.471034] [<ffffffff81518f4c>] ? __nlmsg_put+0x6c/0x80 [30017.471062] [<ffffffffa023c15e>] nl80211_get_key+0x22e/0x380 [cfg80211] [30017.471075] [<ffffffffa022c440>] ? cfg80211_testmode_alloc_event_skb+0x30/0x30 [cfg80211] [30017.471085] [<ffffffffa0228866>] ? __cfg80211_wdev_from_attrs+0x36/0x1a0 [cfg80211] [30017.471091] [<ffffffff8151dc5d>] genl_family_rcv_msg+0x18d/0x370 [30017.471096] [<ffffffff8151de40>] ? genl_family_rcv_msg+0x370/0x370 [30017.471099] [<ffffffff8151dece>] genl_rcv_msg+0x8e/0xd0 [30017.471104] [<ffffffff8151bee9>] netlink_rcv_skb+0xa9/0xc0 [30017.471109] [<ffffffff8151c408>] genl_rcv+0x28/0x40 [30017.471113] [<ffffffff8151b88a>] netlink_unicast+0x14a/0x200 [30017.471118] [<ffffffff8151bc1e>] netlink_sendmsg+0x2de/0x3f0 [30017.471125] [<ffffffff814d553b>] sock_sendmsg+0x8b/0xc0 [30017.471131] [<ffffffff8114370f>] ? might_fault+0x5f/0xb0 [30017.471135] [<ffffffff81143758>] ? might_fault+0xa8/0xb0 [30017.471140] [<ffffffff8114370f>] ? might_fault+0x5f/0xb0 [30017.471148] [<ffffffff814e37ae>] ? verify_iovec+0x5e/0xe0 [30017.471156] [<ffffffff814d5991>] ___sys_sendmsg+0x3d1/0x3e0 [30017.471166] [<ffffffff81093ebd>] ? trace_hardirqs_on_caller+0xfd/0x1c0 [30017.471175] [<ffffffff811a06f7>] ? mntput_no_expire+0x17/0x160 [30017.471180] [<ffffffff811a0750>] ? mntput_no_expire+0x70/0x160 [30017.471185] [<ffffffff811a06f7>] ? mntput_no_expire+0x17/0x160 [30017.471190] [<ffffffff811a0866>] ? mntput+0x26/0x40 [30017.471197] [<ffffffff81180c48>] ? __fput+0x178/0x240 [30017.471205] [<ffffffff814d6bc2>] __sys_sendmsg+0x42/0x80 [30017.471211] [<ffffffff814d6c12>] SyS_sendmsg+0x12/0x20 [30017.471218] [<ffffffff815e9bd6>] system_call_fastpath+0x1a/0x1f [30095.438944] device wlan1 left promiscuous mode -- 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
