Yes, it's a known problem. It's very reproducible for me on a non-hacked 3.3-rc1 as well: changing from AP to client mode, or setting up multiple APs, or changing from 2.4Ghz to 5Ghz all seem to trigger this warning with various stack traces. -- -bp On Mar 7, 2012, at 11:32 AM, Ben Greear wrote: > This is with a somewhat hacked 3.3.0-rc5+. Just > curious if this is a known problem. > > > Seems very reproducible on my system. > > > WARNING: at /home/greearb/git/linux-3.3.dev.y/net/mac80211/driver-ops.h:10 ieee80211_bss_info_change_noti) > Hardware name: To be filled by O.E.M. > Modules linked in: 8021q garp stp llc macvlan wanlink(PO) pktgen lockd arc4 joydev ppdev microcode serio_] > Pid: 1855, comm: hostapd Tainted: P C O 3.3.0-rc5+ #7 > Call Trace: > [<ffffffff81036eda>] warn_slowpath_common+0x80/0x98 > [<ffffffff81036f07>] warn_slowpath_null+0x15/0x17 > [<ffffffffa02c0010>] ieee80211_bss_info_change_notify+0x15f/0x18c [mac80211] > [<ffffffffa02d472d>] ieee80211_config_beacon+0x58/0x208 [mac80211] > [<ffffffff8144773b>] ? __mutex_unlock_slowpath+0x10d/0x11f > [<ffffffffa02d4936>] ieee80211_add_beacon+0x35/0xa4 [mac80211] > [<ffffffffa01fd715>] nl80211_addset_beacon+0x317/0x34a [cfg80211] > [<ffffffff813b5a08>] genl_rcv_msg+0x1f4/0x239 > [<ffffffff813b5814>] ? genl_rcv+0x28/0x28 > [<ffffffff813b4836>] netlink_rcv_skb+0x3e/0x8f > [<ffffffff813b580d>] genl_rcv+0x21/0x28 > [<ffffffff813b4611>] netlink_unicast+0xe9/0x152 > [<ffffffff813b4d6a>] netlink_sendmsg+0x1f8/0x216 > [<ffffffff81384122>] __sock_sendmsg_nosec+0x5f/0x6a > [<ffffffff8138416a>] __sock_sendmsg+0x3d/0x48 > [<ffffffff81384a0a>] sock_sendmsg+0xa3/0xbc > [<ffffffff811d12c2>] ? blk_finish_plug+0x13/0x34 > [<ffffffff810a8b87>] ? generic_file_aio_write+0xa6/0xb6 > [<ffffffff81383b68>] ? copy_from_user+0x9/0xb > [<ffffffff813846b2>] ? move_addr_to_kernel+0x2b/0x65 > [<ffffffff8138e909>] ? copy_from_user+0x9/0xb > [<ffffffff8138ec56>] ? verify_iovec+0x4f/0xa3 > [<ffffffff8138516c>] __sys_sendmsg+0x20f/0x29c > [<ffffffff8144c242>] ? sub_preempt_count+0x92/0xa6 > [<ffffffff81052ecf>] ? __srcu_read_unlock+0x3b/0x59 > [<ffffffff8111d9c0>] ? fsnotify+0x255/0x285 > [<ffffffff81385356>] sys_sendmsg+0x3d/0x5b > [<ffffffff8144dfb9>] system_call_fastpath+0x16/0x1b > ---[ end trace 7abcbdd8b95b5194 ]--- > > -- > Ben Greear <greearb@xxxxxxxxxxxxxxx> > Candela Technologies Inc http://www.candelatech.com > > -- > 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 -- 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
