Patch sent: http://marc.info/?l=linux-wireless&m=133282325727326&w=2 Sujith ________________________________________ From: linux-wireless-owner@xxxxxxxxxxxxxxx [linux-wireless-owner@xxxxxxxxxxxxxxx] on behalf of Ben Greear [greearb@xxxxxxxxxxxxxxx] Sent: Monday, April 02, 2012 9:46 PM To: linux-wireless@xxxxxxxxxxxxxxx; ath9k-devel@xxxxxxxxxxxxxxx Subject: deadlock in ath9k, 3.3.0+ kernel. Looks like my ath9k AP locked up over the weekend. This is spewing on the console every so often. The tainting comes from a non-wireless related module that is very unlikely to be related to this bug. I had around 200 stations trying to connect, and probably getting resarted every few minutes due to idle timer. BUG: soft lockup - CPU#1 stuck for 22s! [dhcpd:20435] Modules linked in: bluetooth xt_CT iptable_raw veth 8021q garp stp llc macvlan wanlink(PO) pktgen nfs f] Modules linked in: bluetooth xt_CT iptable_raw veth 8021q garp stp llc macvlan wanlink(PO) pktgen nfs f] Pid: 20435, comm: dhcpd Tainted: P W O 3.3.0+ #41 To Be Filled By O.E.M. To Be Filled By O.E.M.. EIP: 0060:[<c05986b0>] EFLAGS: 00200287 CPU: 1 EIP is at do_raw_spin_lock+0x89/0xf9 EAX: 000000d8 EBX: f6fd1e04 ECX: 00000000 EDX: 0000d8d7 ESI: 571a3e1f EDI: 00000000 EBP: f20f9b84 ESP: f20f9b68 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process dhcpd (pid: 20435, ti=f20f8000 task=f2091480 task.ti=f20f8000) Stack: 00000000 f20507a0 5f20a170 00000003 00000002 f2050780 f6fd1e04 f20f9b90 c07a917c f6fd1e04 f20f9bcc f8f1b034 00000000 00000000 0000016e f2f5883a f6fd1df0 f20507b0 f20f9be4 f6fd1320 f8e9f757 f20f9c1c f6fd1320 f2f5883c Call Trace: [<c07a917c>] _raw_spin_lock_bh+0x16/0x18 [<f8f1b034>] ath_tx_start+0x190/0x406 [ath9k] [<f8e9f757>] ? rate_control_get_rate+0x8f/0x132 [mac80211] [<f8f141c9>] ath9k_tx+0x159/0x18b [ath9k] [<f8ea8ac1>] __ieee80211_tx+0x1ce/0x248 [mac80211] [<f8ea8ba4>] ieee80211_tx+0x69/0x77 [mac80211] [<f8ea8f04>] ieee80211_xmit+0xae/0xb6 [mac80211] [<f8ea9886>] ieee80211_subif_start_xmit+0x92a/0x93d [mac80211] [<c0709c30>] ? netif_skb_features+0x7b/0x85 [<c070c44a>] dev_hard_start_xmit+0x37a/0x43e [<c071ea4a>] sch_direct_xmit+0x52/0x102 [<c070c7d7>] try_dev_queue_xmit+0x2c9/0x47b [<c070c993>] dev_queue_xmit+0xa/0xc [<c077d362>] packet_sendmsg+0x888/0x8e4 [<c06fead5>] ? sock_sendmsg+0x93/0xa7 [<c06fe57e>] __sock_sendmsg_nosec+0x4a/0x52 [<c06fe5b0>] __sock_sendmsg+0x2a/0x33 [<c06fe68e>] sock_aio_write+0xd5/0xde [<c04bdfc6>] do_sync_write+0x8d/0xc8 [<c0547f56>] ? jbd2_log_wait_commit+0x12b/0x14a [<c055c582>] ? security_file_permission+0x22/0x26 [<c04be18e>] ? rw_verify_area+0xc5/0xe8 [<c04be8e4>] vfs_write+0x8e/0xde [<c04be9cb>] sys_write+0x3b/0x60 [<c07adb58>] sysenter_do_call+0x12/0x28 Code: f0 66 0f b1 0b 66 39 d0 74 76 69 05 80 cd 96 c0 e8 03 00 00 b9 01 00 00 00 89 45 ec 31 f6 31 ff 8 Call Trace: [<c07a917c>] _raw_spin_lock_bh+0x16/0x18 [<f8f1b034>] ath_tx_start+0x190/0x406 [ath9k] [<f8e9f757>] ? rate_control_get_rate+0x8f/0x132 [mac80211] [<f8f141c9>] ath9k_tx+0x159/0x18b [ath9k] [<f8ea8ac1>] __ieee80211_tx+0x1ce/0x248 [mac80211] [<f8ea8ba4>] ieee80211_tx+0x69/0x77 [mac80211] [<f8ea8f04>] ieee80211_xmit+0xae/0xb6 [mac80211] [<f8ea9886>] ieee80211_subif_start_xmit+0x92a/0x93d [mac80211] [<c0709c30>] ? netif_skb_features+0x7b/0x85 [<c070c44a>] dev_hard_start_xmit+0x37a/0x43e [<c071ea4a>] sch_direct_xmit+0x52/0x102 [<c070c7d7>] try_dev_queue_xmit+0x2c9/0x47b [<c070c993>] dev_queue_xmit+0xa/0xc [<c077d362>] packet_sendmsg+0x888/0x8e4 [<c06fead5>] ? sock_sendmsg+0x93/0xa7 [<c06fe57e>] __sock_sendmsg_nosec+0x4a/0x52 [<c06fe5b0>] __sock_sendmsg+0x2a/0x33 [<c06fe68e>] sock_aio_write+0xd5/0xde [<c04bdfc6>] do_sync_write+0x8d/0xc8 [<c0547f56>] ? jbd2_log_wait_commit+0x12b/0x14a [<c055c582>] ? security_file_permission+0x22/0x26 [<c04be18e>] ? rw_verify_area+0xc5/0xe8 [<c04be8e4>] vfs_write+0x8e/0xde [<c04be9cb>] sys_write+0x3b/0x60 [<c07adb58>] sysenter_do_call+0x12/0x28 CTRL-A Z for help |115200 8N1 | NOR | Minicom 2.5 | VT102 | Online 113:34 -- 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
