On Mon, Sep 15, 2008 at 11:26 AM, Luis R. Rodriguez
<lrodriguez@xxxxxxxxxxx> wrote:
> Re-enable aggregation by addressing skb->cb overwrites
> after insertion into the qdisc. Aggregation was disabled
> after the new TX multiqueue changes were introduced. Instead
> of relying on the skb->cb we use two flags on the skb.
>
> Signed-off-by: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx>
> ---
>
> Users have been reporting low rates on 2.6.27 with 11n drivers, the
> problem isbeen 11n aggregation was disabled due to the new TX multique
> changes. We should have addressed this sooner but we just got to it now.
>
> Without addressing this we won't get 11n aggregation on 2.6.27. I tried
> to minimize the changes required. I'm about to test this, it compiles.
>
> If this doesn't get upstream for 27 perhaps distributions are willing to
> carry it around then and if so oh well (grr...).
OK I get these results with iwlagn (Intel 4965) using iperf on 2GHz
using HT20 TCP on a very very noisy environment (at work):
(Server end using iperf -s -i1)
[ 5] local 192.168.1.5 port 5001 connected with 192.168.1.3 port 34066
[ 5] 0.0- 1.0 sec 4.21 MBytes 35.3 Mbits/sec
[ 5] 1.0- 2.0 sec 2.85 MBytes 23.9 Mbits/sec
[ 5] 2.0- 3.0 sec 3.94 MBytes 33.0 Mbits/sec
[ 5] 3.0- 4.0 sec 3.66 MBytes 30.7 Mbits/sec
[ 5] 4.0- 5.0 sec 3.63 MBytes 30.5 Mbits/sec
[ 5] 5.0- 6.0 sec 3.22 MBytes 27.0 Mbits/sec
[ 5] 6.0- 7.0 sec 3.82 MBytes 32.0 Mbits/sec
[ 5] 7.0- 8.0 sec 3.36 MBytes 28.2 Mbits/sec
[ 5] 8.0- 9.0 sec 2.66 MBytes 22.3 Mbits/sec
[ 5] 9.0-10.0 sec 4.46 MBytes 37.4 Mbits/sec
[ 5] 0.0-10.4 sec 37.1 MBytes 30.0 Mbits/sec
With ath9k aggregation is not being negotiated correctly. Will have to
look into that.
(Server end using iperf -s -i1)
[ 4] local 192.168.1.5 port 5001 connected with 192.168.1.6 port 38482
[ 4] 0.0- 1.0 sec 528 KBytes 4.33 Mbits/sec
[ 4] 1.0- 2.0 sec 732 KBytes 6.00 Mbits/sec
[ 4] 2.0- 3.0 sec 672 KBytes 5.51 Mbits/sec
[ 4] 3.0- 4.0 sec 376 KBytes 3.08 Mbits/sec
[ 4] 4.0- 5.0 sec 269 KBytes 2.20 Mbits/sec
[ 4] 5.0- 6.0 sec 252 KBytes 2.06 Mbits/sec
[ 4] 6.0- 7.0 sec 363 KBytes 2.98 Mbits/sec
[ 4] 7.0- 8.0 sec 277 KBytes 2.27 Mbits/sec
[ 4] 8.0- 9.0 sec 382 KBytes 3.13 Mbits/sec
[ 4] 9.0-10.0 sec 474 KBytes 3.88 Mbits/sec
[ 4] 0.0-10.2 sec 4.27 MBytes 3.50 Mbits/sec
On the client side with ath9k:
mcgrof@mosca ~ $ sudo dmesg -c
[ 6521.420101] wlan1: no IPv6 routers present
[ 6574.460164] Open BA session requested for 00:03:7f:0c:e0:bc tid 6
[ 6574.460175] BA request denied - queue unavailable for tid 6
[ 6580.168173] Open BA session requested for 00:03:7f:0c:e0:bc tid 6
[ 6580.168183] BA request denied - queue unavailable for tid 6
[ 6597.983766] Rx A-MPDU request on tid 0 result 0
But sadly with both we run into an an rtnl assert too (doesn't crash,
just a WARN_ON()):
This is with iwlagn:
Sep 15 14:44:45 mosca klogd: [ 2908.342255] iwlagn: Copyright(c)
2003-2008 Intel Corporation
Sep 15 14:44:45 mosca klogd: [ 2908.342526] iwlagn 0000:03:00.0: PCI
INT A -> GSI 17 (level, low) -> IRQ 17
Sep 15 14:44:45 mosca klogd: [ 2908.342657] iwlagn: Detected Intel
Wireless WiFi Link 4965AGN REV=0x4
Sep 15 14:44:45 mosca klogd: [ 2908.390128] iwlagn: Tunable channels:
11 802.11bg, 13 802.11a channels
Sep 15 14:45:26 mosca klogd: [ 2949.155420] iwlagn 0000:03:00.0: PCI
INT A -> GSI 17 (level, low) -> IRQ 17
Sep 15 14:45:26 mosca klogd: [ 2949.161136] firmware: requesting
iwlwifi-4965-2.ucode
Sep 15 14:45:26 mosca klogd: [ 2949.384341] Registered led device:
iwl-phy0:radio
Sep 15 14:45:26 mosca klogd: [ 2949.385560] Registered led device:
iwl-phy0:assoc
Sep 15 14:45:26 mosca klogd: [ 2949.386541] Registered led device: iwl-phy0:RX
Sep 15 14:45:26 mosca klogd: [ 2949.387490] Registered led device: iwl-phy0:TX
Sep 15 14:45:26 mosca klogd: [ 2949.432829] iwlagn: TX Power requested
while scanning!
Sep 15 14:45:26 mosca klogd: [ 2949.443491] ADDRCONF(NETDEV_UP):
wlan0: link is not ready
Sep 15 14:45:27 mosca klogd: [ 2950.759647] ADDRCONF(NETDEV_CHANGE):
wlan0: link becomes ready
Sep 15 14:56:38 mosca -- MARK --
Sep 15 15:02:07 mosca klogd: [ 3950.109244] iwlagn: iwl_tx_agg_start
on ra = 00:03:7f:0c:e0:bc tid = 0
Sep 15 15:02:07 mosca klogd: [ 3950.109359] Pid: 10156, comm: iperf
Not tainted 2.6.27-rc6 #3
Sep 15 15:02:07 mosca klogd: [ 3950.109365] [<c037b64b>] ? printk+0x1d/0x22
Sep 15 15:02:07 mosca klogd: [ 3950.109380] [<f8eac200>]
ieee80211_requeue+0x220/0x230 [mac80211]
Sep 15 15:02:07 mosca klogd: [ 3950.109408] [<f8eabfe0>] ?
ieee80211_requeue+0x0/0x230 [mac80211]
Sep 15 15:02:07 mosca klogd: [ 3950.109430] [<f8e943f5>]
ieee80211_start_tx_ba_session+0x165/0x2e0 [mac80211]
Sep 15 15:02:07 mosca klogd: [ 3950.109439] [<f8e942c0>] ?
ieee80211_start_tx_ba_session+0x30/0x2e0 [mac80211]
Sep 15 15:02:07 mosca klogd: [ 3950.109449] [<f8aefae0>] ?
iwl4965_mac_ampdu_action+0x0/0xc0 [iwlagn]
Sep 15 15:02:07 mosca klogd: [ 3950.109457] [<f8af6ae5>]
rs_tl_turn_on_agg_for_tid+0x135/0x140 [iwlagn]
Sep 15 15:02:07 mosca klogd: [ 3950.109464] [<f8adb8d0>] ?
iwl_generic_cmd_callback+0x0/0x70 [iwlcore]
Sep 15 15:02:07 mosca klogd: [ 3950.109471] [<f8af7a11>]
rs_tx_status+0xf21/0x1860 [iwlagn]
Sep 15 15:02:07 mosca klogd: [ 3950.109478] [<f8af6b82>] ?
rs_tx_status+0x92/0x1860 [iwlagn]
Sep 15 15:02:07 mosca klogd: [ 3950.109495] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:02:07 mosca klogd: [ 3950.109500] [<c01386c7>] ?
local_bh_enable+0x77/0xe0
Sep 15 15:02:07 mosca klogd: [ 3950.109505] [<c01594f4>] ?
__lock_acquire+0x2a4/0xf90
Sep 15 15:02:07 mosca klogd: [ 3950.109509] [<c0317c4d>] ?
ip_finish_output+0x18d/0x290
Sep 15 15:02:07 mosca klogd: [ 3950.109514] [<c0317da5>] ? ip_output+0x55/0xb0
Sep 15 15:02:07 mosca klogd: [ 3950.109518] [<c01594f4>] ?
__lock_acquire+0x2a4/0xf90
Sep 15 15:02:07 mosca klogd: [ 3950.109523] [<c01594f4>] ?
__lock_acquire+0x2a4/0xf90
Sep 15 15:02:07 mosca klogd: [ 3950.109527] [<c025a791>] ?
_raw_spin_lock+0x41/0x120
Sep 15 15:02:07 mosca klogd: [ 3950.109532] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:02:07 mosca klogd: [ 3950.109536] [<f8e95150>] ?
ieee80211_tx_status+0x0/0x4c0 [mac80211]
Sep 15 15:02:07 mosca klogd: [ 3950.109555] [<f8e9520b>]
ieee80211_tx_status+0xbb/0x4c0 [mac80211]
Sep 15 15:02:07 mosca klogd: [ 3950.109564] [<f8e95150>] ?
ieee80211_tx_status+0x0/0x4c0 [mac80211]
Sep 15 15:02:07 mosca klogd: [ 3950.109574] [<f8e95720>]
ieee80211_tasklet_handler+0x110/0x120 [mac80211]
Sep 15 15:02:07 mosca klogd: [ 3950.109583] [<c02e9696>] ?
__kfree_skb+0x36/0x90
Sep 15 15:02:07 mosca klogd: [ 3950.109587] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:02:07 mosca klogd: [ 3950.109591] [<c0158ec6>] ?
trace_hardirqs_on_caller+0x86/0x170
Sep 15 15:02:07 mosca klogd: [ 3950.109595] [<c0137f4d>]
tasklet_action+0x7d/0x110
Sep 15 15:02:07 mosca klogd: [ 3950.109599] [<c013835a>]
__do_softirq+0x9a/0x130
Sep 15 15:02:07 mosca klogd: [ 3950.109602] [<c013847d>] do_softirq+0x8d/0xa0
Sep 15 15:02:07 mosca klogd: [ 3950.109605] [<c0138615>] irq_exit+0x65/0xa0
Sep 15 15:02:07 mosca klogd: [ 3950.109608] [<c0106d9a>] do_IRQ+0x4a/0x80
Sep 15 15:02:07 mosca klogd: [ 3950.109612] [<c0158f55>] ?
trace_hardirqs_on_caller+0x115/0x170
Sep 15 15:02:07 mosca klogd: [ 3950.109616] [<c0105058>]
common_interrupt+0x28/0x30
Sep 15 15:02:07 mosca klogd: [ 3950.109620] [<c03700d8>] ?
pci_scan_bridge+0xe6/0x3ae
Sep 15 15:02:07 mosca klogd: [ 3950.109624] [<c0119e34>] ? read_hpet+0x14/0x20
Sep 15 15:02:07 mosca klogd: [ 3950.109628] [<c014f7ab>]
getnstimeofday+0x4b/0x100
Sep 15 15:02:07 mosca klogd: [ 3950.109632] [<c014f876>]
do_gettimeofday+0x16/0x40
Sep 15 15:02:07 mosca klogd: [ 3950.109636] [<c0137aa2>]
sys_gettimeofday+0x22/0x70
Sep 15 15:02:07 mosca klogd: [ 3950.109639] [<c025633c>] ?
trace_hardirqs_on_thunk+0xc/0x10
Sep 15 15:02:07 mosca klogd: [ 3950.109643] [<c0103f6b>]
sysenter_do_call+0x12/0x3f
Sep 15 15:02:07 mosca klogd: [ 3950.109648] =======================
With ath9k its the same story, this happens at the beginning when you
start TXing:
Sep 15 15:44:31 mosca klogd: [ 6494.308158] pccard: CardBus card
inserted into slot 0
Sep 15 15:44:31 mosca klogd: [ 6494.753121] ath9k: 0.1
Sep 15 15:44:31 mosca klogd: [ 6494.753392] ath9k 0000:16:00.0:
enabling device (0000 -> 0002)
Sep 15 15:44:31 mosca klogd: [ 6494.753418] ath9k 0000:16:00.0: PCI
INT A -> GSI 16 (level, low) -> IRQ 16
Sep 15 15:44:32 mosca klogd: [ 6495.191035] phy1: Atheros 5416:
mem=0xf8ca0000, irq=16
Sep 15 15:44:39 mosca klogd: [ 6502.254215] ADDRCONF(NETDEV_UP):
wlan1: link is not ready
Sep 15 15:44:47 mosca klogd: [ 6510.432301] ADDRCONF(NETDEV_CHANGE):
wlan1: link becomes ready
Sep 15 15:44:47 mosca klogd: [ 6510.440592] Pid: 0, comm: swapper Not
tainted 2.6.27-rc6 #3
Sep 15 15:44:47 mosca klogd: [ 6510.440598] [<c037b64b>] ? printk+0x1d/0x22
Sep 15 15:44:47 mosca klogd: [ 6510.440614] [<f8eac200>]
ieee80211_requeue+0x220/0x230 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.440661] [<f8eabfe0>] ?
ieee80211_requeue+0x0/0x230 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.440703] [<f8e943f5>]
ieee80211_start_tx_ba_session+0x165/0x2e0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.440728] [<f8e942c0>] ?
ieee80211_start_tx_ba_session+0x30/0x2e0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.440753] [<f90f9370>] ?
ath9k_ampdu_action+0x0/0x1a0 [ath9k]
Sep 15 15:44:47 mosca klogd: [ 6510.440778] [<f91026a9>]
ath_get_rate+0x329/0x3e0 [ath9k]
Sep 15 15:44:47 mosca klogd: [ 6510.440801] [<f8ea27bf>] ?
rate_control_get_rate+0x2f/0x190 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.440842] [<f8ea2836>]
rate_control_get_rate+0xa6/0x190 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.440869] [<f8ea27bf>] ?
rate_control_get_rate+0x2f/0x190 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.440896] [<f8ea9979>]
invoke_tx_handlers+0x649/0xcc0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.440923] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:44:47 mosca klogd: [ 6510.440935] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:44:47 mosca klogd: [ 6510.440945] [<f8ea7eec>] ?
__ieee80211_tx_prepare+0x16c/0x370 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.440974] [<f8eaa4b0>] ?
ieee80211_master_start_xmit+0x180/0x420 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.441002] [<f8eaa50c>]
ieee80211_master_start_xmit+0x1dc/0x420 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.441040] [<f8eaa4b0>] ?
ieee80211_master_start_xmit+0x180/0x420 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.441068] [<c02f16cb>]
dev_hard_start_xmit+0x28b/0x320
Sep 15 15:44:47 mosca klogd: [ 6510.441081] [<c02f148b>] ?
dev_hard_start_xmit+0x4b/0x320
Sep 15 15:44:47 mosca klogd: [ 6510.441092] [<c03011eb>]
__qdisc_run+0x1cb/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.441101] [<c02f396f>]
dev_queue_xmit+0x39f/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.441111] [<c02f360e>] ?
dev_queue_xmit+0x3e/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.441122] [<f8ea8f1b>]
ieee80211_subif_start_xmit+0x35b/0x6d0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.441149] [<f8ea8f3f>] ?
ieee80211_subif_start_xmit+0x37f/0x6d0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.441191] [<c02f1568>] ?
dev_hard_start_xmit+0x128/0x320
Sep 15 15:44:47 mosca klogd: [ 6510.441203] [<c02f16cb>]
dev_hard_start_xmit+0x28b/0x320
Sep 15 15:44:47 mosca klogd: [ 6510.441213] [<c02f148b>] ?
dev_hard_start_xmit+0x4b/0x320
Sep 15 15:44:47 mosca klogd: [ 6510.441224] [<c03011eb>]
__qdisc_run+0x1cb/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.441232] [<c02f396f>]
dev_queue_xmit+0x39f/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.441242] [<c02f360e>] ?
dev_queue_xmit+0x3e/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.441253] [<c02f74e1>]
neigh_resolve_output+0xf1/0x2a0
Sep 15 15:44:47 mosca klogd: [ 6510.441263] [<f93fede0>] ?
ipv6_chk_mcast_addr+0x0/0x1e0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.441305] [<f93e3166>]
ip6_output_finish+0xa6/0x100 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.441337] [<f93e52b8>]
ip6_output2+0x138/0x220 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.441381] [<f93e58a5>]
ip6_output+0x505/0xba0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.441412] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:44:47 mosca klogd: [ 6510.441423] [<c0158ec6>] ?
trace_hardirqs_on_caller+0x86/0x170
Sep 15 15:44:47 mosca klogd: [ 6510.441433] [<f93f0f0f>] ?
icmp6_dst_alloc+0x10f/0x1c0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.441468] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:44:47 mosca klogd: [ 6510.441478] [<c0138b06>] ?
local_bh_enable_ip+0x76/0xe0
Sep 15 15:44:47 mosca klogd: [ 6510.441502] [<c037e87a>] ?
_spin_unlock_bh+0x2a/0x30
Sep 15 15:44:47 mosca klogd: [ 6510.441514] [<f93ff2e8>]
mld_sendpack+0x328/0x390 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.441551] [<f93fefc0>] ?
mld_sendpack+0x0/0x390 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.441590] [<f93ff9a9>]
mld_ifc_timer_expire+0x259/0x2e0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.441627] [<c013cb9d>]
run_timer_softirq+0x12d/0x1f0
Sep 15 15:44:47 mosca klogd: [ 6510.441637] [<f93ff750>] ?
mld_ifc_timer_expire+0x0/0x2e0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.441676] [<f93ff750>] ?
mld_ifc_timer_expire+0x0/0x2e0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.441714] [<c013835a>]
__do_softirq+0x9a/0x130
Sep 15 15:44:47 mosca klogd: [ 6510.441722] [<c013847d>] do_softirq+0x8d/0xa0
Sep 15 15:44:47 mosca klogd: [ 6510.441730] [<c0138615>] irq_exit+0x65/0xa0
Sep 15 15:44:47 mosca klogd: [ 6510.441738] [<c011434d>]
smp_apic_timer_interrupt+0x5d/0x90
Sep 15 15:44:47 mosca klogd: [ 6510.441749] [<c025634c>] ?
trace_hardirqs_off_thunk+0xc/0x10
Sep 15 15:44:47 mosca klogd: [ 6510.441761] [<c010518d>]
apic_timer_interrupt+0x2d/0x40
Sep 15 15:44:47 mosca klogd: [ 6510.441771] [<c02d007b>] ?
mousedev_open_device+0x2b/0xf0
Sep 15 15:44:47 mosca klogd: [ 6510.441782] [<c01028a6>] ? cpu_idle+0x96/0x140
Sep 15 15:44:47 mosca klogd: [ 6510.441792] [<c036d4e3>] rest_init+0x53/0x60
Sep 15 15:44:47 mosca klogd: [ 6510.441803] =======================
And then lockdep picks up a possible recursive lock:
Sep 15 15:44:47 mosca klogd: [ 6510.441919]
=============================================
Sep 15 15:44:47 mosca klogd: [ 6510.441925] [ INFO: possible recursive
locking detected ]
Sep 15 15:44:47 mosca klogd: [ 6510.441931] 2.6.27-rc6 #3
Sep 15 15:44:47 mosca klogd: [ 6510.441935]
---------------------------------------------
Sep 15 15:44:47 mosca klogd: [ 6510.441941] swapper/0 is trying to acquire lock:
Sep 15 15:44:47 mosca klogd: [ 6510.441946]
(_xmit_IEEE80211#2){-+..}, at: [<c0301207>] __qdisc_run+0x1e7/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.441964]
Sep 15 15:44:47 mosca klogd: [ 6510.441965] but task is already holding lock:
Sep 15 15:44:47 mosca klogd: [ 6510.441970]
(_xmit_IEEE80211#2){-+..}, at: [<c0301207>] __qdisc_run+0x1e7/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.441986]
Sep 15 15:44:47 mosca klogd: [ 6510.441988] other info that might help
us debug this:
Sep 15 15:44:47 mosca klogd: [ 6510.441994] 8 locks held by swapper/0:
Sep 15 15:44:47 mosca klogd: [ 6510.441998] #0:
(rcu_read_lock){..--}, at: [<c02f360e>] dev_queue_xmit+0x3e/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.442017] #1:
(_xmit_ETHER#2){-+..}, at: [<c0301207>] __qdisc_run+0x1e7/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.442034] #2:
(rcu_read_lock){..--}, at: [<c02f360e>] dev_queue_xmit+0x3e/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.442051] #3:
(_xmit_IEEE80211#2){-+..}, at: [<c0301207>] __qdisc_run+0x1e7/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.442069] #4:
(rcu_read_lock){..--}, at: [<f8eaa4b0>]
ieee80211_master_start_xmit+0x180/0x420 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442104] #5:
(rcu_read_lock){..--}, at: [<f8ea27bf>]
rate_control_get_rate+0x2f/0x190 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442138] #6:
(rcu_read_lock){..--}, at: [<f8e942c0>]
ieee80211_start_tx_ba_session+0x30/0x2e0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442169] #7:
(rcu_read_lock){..--}, at: [<c02f360e>] dev_queue_xmit+0x3e/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.442186]
Sep 15 15:44:47 mosca klogd: [ 6510.442187] stack backtrace:
Sep 15 15:44:47 mosca klogd: [ 6510.442194] Pid: 0, comm: swapper Not
tainted 2.6.27-rc6 #3
Sep 15 15:44:47 mosca klogd: [ 6510.442199] [<c037b64b>] ? printk+0x1d/0x22
Sep 15 15:44:47 mosca klogd: [ 6510.442210] [<c0159db9>]
__lock_acquire+0xb69/0xf90
Sep 15 15:44:47 mosca klogd: [ 6510.442220] [<c02f3699>] ?
dev_queue_xmit+0xc9/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.442232] [<c015a269>] lock_acquire+0x89/0xc0
Sep 15 15:44:47 mosca klogd: [ 6510.442241] [<c0301207>] ?
__qdisc_run+0x1e7/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.442252] [<c037eac8>] _spin_lock+0x38/0x50
Sep 15 15:44:47 mosca klogd: [ 6510.442260] [<c0301207>] ?
__qdisc_run+0x1e7/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.442270] [<c0301207>]
__qdisc_run+0x1e7/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.442279] [<c02f396f>]
dev_queue_xmit+0x39f/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.442289] [<c02f360e>] ?
dev_queue_xmit+0x3e/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.442301] [<f8e9acb4>]
ieee80211_sta_tx+0x74/0x90 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442327] [<f8e9ed6e>]
ieee80211_send_addba_request+0x14e/0x1a0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442353] [<c0158ec6>] ?
trace_hardirqs_on_caller+0x86/0x170
Sep 15 15:44:47 mosca klogd: [ 6510.442365] [<f8e943fd>] ?
ieee80211_start_tx_ba_session+0x16d/0x2e0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442392] [<f8e94459>]
ieee80211_start_tx_ba_session+0x1c9/0x2e0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442416] [<f90f9370>] ?
ath9k_ampdu_action+0x0/0x1a0 [ath9k]
Sep 15 15:44:47 mosca klogd: [ 6510.442440] [<f91026a9>]
ath_get_rate+0x329/0x3e0 [ath9k]
Sep 15 15:44:47 mosca klogd: [ 6510.442463] [<f8ea27bf>] ?
rate_control_get_rate+0x2f/0x190 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442505] [<f8ea2836>]
rate_control_get_rate+0xa6/0x190 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442532] [<f8ea27bf>] ?
rate_control_get_rate+0x2f/0x190 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442560] [<f8ea9979>]
invoke_tx_handlers+0x649/0xcc0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442587] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:44:47 mosca klogd: [ 6510.442598] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:44:47 mosca klogd: [ 6510.442610] [<f8ea7eec>] ?
__ieee80211_tx_prepare+0x16c/0x370 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442639] [<f8eaa4b0>] ?
ieee80211_master_start_xmit+0x180/0x420 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442668] [<f8eaa50c>]
ieee80211_master_start_xmit+0x1dc/0x420 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442694] [<f8eaa4b0>] ?
ieee80211_master_start_xmit+0x180/0x420 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442724] [<c02f16cb>]
dev_hard_start_xmit+0x28b/0x320
Sep 15 15:44:47 mosca klogd: [ 6510.442734] [<c02f148b>] ?
dev_hard_start_xmit+0x4b/0x320
Sep 15 15:44:47 mosca klogd: [ 6510.442747] [<c03011eb>]
__qdisc_run+0x1cb/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.442756] [<c02f396f>]
dev_queue_xmit+0x39f/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.442766] [<c02f360e>] ?
dev_queue_xmit+0x3e/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.442777] [<f8ea8f1b>]
ieee80211_subif_start_xmit+0x35b/0x6d0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442805] [<f8ea8f3f>] ?
ieee80211_subif_start_xmit+0x37f/0x6d0 [mac80211]
Sep 15 15:44:47 mosca klogd: [ 6510.442847] [<c02f1568>] ?
dev_hard_start_xmit+0x128/0x320
Sep 15 15:44:47 mosca klogd: [ 6510.442860] [<c02f16cb>]
dev_hard_start_xmit+0x28b/0x320
Sep 15 15:44:47 mosca klogd: [ 6510.442870] [<c02f148b>] ?
dev_hard_start_xmit+0x4b/0x320
Sep 15 15:44:47 mosca klogd: [ 6510.442882] [<c03011eb>]
__qdisc_run+0x1cb/0x220
Sep 15 15:44:47 mosca klogd: [ 6510.442891] [<c02f396f>]
dev_queue_xmit+0x39f/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.442901] [<c02f360e>] ?
dev_queue_xmit+0x3e/0x5f0
Sep 15 15:44:47 mosca klogd: [ 6510.442913] [<c02f74e1>]
neigh_resolve_output+0xf1/0x2a0
Sep 15 15:44:47 mosca klogd: [ 6510.442923] [<f93fede0>] ?
ipv6_chk_mcast_addr+0x0/0x1e0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.442964] [<f93e3166>]
ip6_output_finish+0xa6/0x100 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.442996] [<f93e52b8>]
ip6_output2+0x138/0x220 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.443040] [<f93e58a5>]
ip6_output+0x505/0xba0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.443071] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:44:47 mosca klogd: [ 6510.443083] [<c0158ec6>] ?
trace_hardirqs_on_caller+0x86/0x170
Sep 15 15:44:47 mosca klogd: [ 6510.443095] [<f93f0f0f>] ?
icmp6_dst_alloc+0x10f/0x1c0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.443130] [<c0158fbb>] ?
trace_hardirqs_on+0xb/0x10
Sep 15 15:44:47 mosca klogd: [ 6510.443141] [<c0138b06>] ?
local_bh_enable_ip+0x76/0xe0
Sep 15 15:44:47 mosca klogd: [ 6510.443165] [<c037e87a>] ?
_spin_unlock_bh+0x2a/0x30
Sep 15 15:44:47 mosca klogd: [ 6510.443178] [<f93ff2e8>]
mld_sendpack+0x328/0x390 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.443215] [<f93fefc0>] ?
mld_sendpack+0x0/0x390 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.443255] [<f93ff9a9>]
mld_ifc_timer_expire+0x259/0x2e0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.443292] [<c013cb9d>]
run_timer_softirq+0x12d/0x1f0
Sep 15 15:44:47 mosca klogd: [ 6510.443303] [<f93ff750>] ?
mld_ifc_timer_expire+0x0/0x2e0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.443342] [<f93ff750>] ?
mld_ifc_timer_expire+0x0/0x2e0 [ipv6]
Sep 15 15:44:47 mosca klogd: [ 6510.443381] [<c013835a>]
__do_softirq+0x9a/0x130
Sep 15 15:44:47 mosca klogd: [ 6510.443390] [<c013847d>] do_softirq+0x8d/0xa0
Sep 15 15:44:47 mosca klogd: [ 6510.443399] [<c0138615>] irq_exit+0x65/0xa0
Sep 15 15:44:47 mosca klogd: [ 6510.443407] [<c011434d>]
smp_apic_timer_interrupt+0x5d/0x90
Sep 15 15:44:47 mosca klogd: [ 6510.443418] [<c025634c>] ?
trace_hardirqs_off_thunk+0xc/0x10
Sep 15 15:44:47 mosca klogd: [ 6510.443430] [<c010518d>]
apic_timer_interrupt+0x2d/0x40
Sep 15 15:44:47 mosca klogd: [ 6510.443440] [<c02d007b>] ?
mousedev_open_device+0x2b/0xf0
Sep 15 15:44:47 mosca klogd: [ 6510.443452] [<c01028a6>] ? cpu_idle+0x96/0x140
Sep 15 15:44:47 mosca klogd: [ 6510.443462] [<c036d4e3>] rest_init+0x53/0x60
Sep 15 15:44:47 mosca klogd: [ 6510.443473] =======================
Luis
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