Messages in this thread |  | | | Date | Wed, 23 Jul 2008 17:49:38 -0400 | | From | Theodore Tso <> | | Subject | Re: Potential iwlwifi locking problem in 2.6.26-git9 |
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On Wed, Jul 23, 2008 at 05:36:30PM -0400, Theodore Ts'o wrote: > > Is this a new one? I don't think I've seen this on LKML....
The context of this was I had just booted to 2.6.26-git9, noted with annoyance that that the iwl4965 driver needed a new microcode file, so I popped in my EVDO card, downloaded the firmware, moved the firmware into place, and then got the above error message.
I've since noted that it seems to be utterly refusing to associate with my wireless access point. This was working just fine with 2.6.26-git6 kernel, so it looks like a recent regression? I just noticed someone else had recently complained about a similar "refusal to associate" with the iwl3945 driver.
- Ted
> > [ 728.456792] > [ 728.456795] ============================================= > [ 728.456810] [ INFO: possible recursive locking detected ] > [ 728.456818] 2.6.26-05781-g44ea66a #25 > [ 728.456823] --------------------------------------------- > [ 728.456830] NetworkManager/8287 is trying to acquire lock: > [ 728.456836] (&dev->addr_list_lock){-...}, at: [<c028c81e>] dev_mc_sync+0x1c/0x59 > [ 728.456867] > [ 728.456869] but task is already holding lock: > [ 728.456875] (&dev->addr_list_lock){-...}, at: [<c0287ffe>] dev_set_rx_mode+0x19/0x2b > [ 728.456894] > [ 728.456895] other info that might help us debug this: > [ 728.456902] 2 locks held by NetworkManager/8287: > [ 728.456908] #0: (rtnl_mutex){--..}, at: [<c029150a>] rtnl_lock+0x14/0x16 > [ 728.456929] #1: (&dev->addr_list_lock){-...}, at: [<c0287ffe>] dev_set_rx_mode+0x19/0x2b > [ 728.456949] > [ 728.456951] stack backtrace: > [ 728.456961] Pid: 8287, comm: NetworkManager Not tainted 2.6.26-05781-g44ea66a #25 > [ 728.456999] [<c014568e>] __lock_acquire+0x99f/0xcc5 > [ 728.457037] [<c0144924>] ? trace_hardirqs_on+0xb/0xd > [ 728.457054] [<c01448ce>] ? trace_hardirqs_on_caller+0xd2/0x11d > [ 728.457076] [<c0145da6>] lock_acquire+0x6a/0x90 > [ 728.457091] [<c028c81e>] ? dev_mc_sync+0x1c/0x59 > [ 728.457109] [<c02f7189>] _spin_lock_bh+0x26/0x53 > [ 728.457126] [<c028c81e>] ? dev_mc_sync+0x1c/0x59 > [ 728.457143] [<c028c81e>] dev_mc_sync+0x1c/0x59 > [ 728.457159] [<f90bebd6>] ieee80211_set_multicast_list+0xca/0xd2 [mac80211] > [ 728.457223] [<c0287f6c>] __dev_set_rx_mode+0x7e/0x81 > [ 728.457239] [<c0288005>] dev_set_rx_mode+0x20/0x2b > [ 728.457255] [<c028ad54>] dev_open+0x84/0x9e > [ 728.457269] [<c0288e9d>] dev_change_flags+0xa1/0x14f > [ 728.457286] [<c0290af3>] do_setlink+0x250/0x300 > [ 728.457308] [<c02f7000>] ? _read_unlock+0x22/0x25 > [ 728.457327] [<c0291a8f>] rtnl_setlink+0xa9/0xc1 > [ 728.457364] [<c01448e4>] ? trace_hardirqs_on_caller+0xe8/0x11d > [ 728.457384] [<c02919e6>] ? rtnl_setlink+0x0/0xc1 > [ 728.457401] [<c02916c7>] rtnetlink_rcv_msg+0x197/0x1b1 > [ 728.457424] [<c0291530>] ? rtnetlink_rcv_msg+0x0/0x1b1 > [ 728.457441] [<c029e55d>] netlink_rcv_skb+0x35/0x7a > [ 728.457460] [<c0291528>] rtnetlink_rcv+0x1c/0x24 > [ 728.457476] [<c029e381>] netlink_unicast+0x1ad/0x20e > [ 728.457499] [<c029eaca>] netlink_sendmsg+0x248/0x255 > [ 728.457530] [<c027e91d>] sock_sendmsg+0xe3/0xfe > [ 728.457562] [<c0138a71>] ? autoremove_wake_function+0x0/0x35 > [ 728.457583] [<c010878a>] ? native_sched_clock+0xd5/0xf4 > [ 728.457609] [<c010857f>] ? sched_clock+0xb/0x1c > [ 728.457628] [<c0142ca9>] ? lock_release_holdtime+0x3f/0x44 > [ 728.457652] [<c0208670>] ? copy_from_user+0x45/0x68 > [ 728.457672] [<c02852d6>] ? verify_iovec+0x45/0x73 > [ 728.457693] [<c027ea8a>] sys_sendmsg+0x152/0x1ad > [ 728.457713] [<c027f541>] ? sys_recvmsg+0x177/0x184 > [ 728.457734] [<c019136e>] ? fget_light+0x95/0xb5 > [ 728.457757] [<c02088db>] ? copy_to_user+0x47/0x50 > [ 728.457776] [<c027f3b2>] ? move_addr_to_user+0x5b/0x73 > [ 728.457796] [<c027f717>] ? sys_getsockname+0x70/0x7b > [ 728.457814] [<c02f702d>] ? _spin_unlock_bh+0x2a/0x2d > [ 728.457831] [<c028045d>] ? release_sock+0xb3/0xbb > [ 728.457851] [<c0281909>] ? sock_setsockopt+0x49d/0x4a8 > [ 728.457874] [<c0191384>] ? fget_light+0xab/0xb5 > [ 728.457909] [<c027fa05>] sys_socketcall+0x168/0x183 > [ 728.457935] [<c0103a0b>] sysenter_past_esp+0x78/0xc5 > [ 728.457969] =======================
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