This is the B43_WARN_ON(ring->stopped) in b43_dma_tx() triggering. [292334.105762] WARNING: at /home/mb/kernel/compat-wireless-2009-02-17/drivers/net/wireless/b43/dma.c:1314 b43_dma_tx+0x9fc/0xa30 [b43]() [292334.105808] Modules linked in: b43 ssb mac80211 cfg80211 [last unloaded: cfg80211] [292334.105861] Pid: 3143, comm: nfsd Tainted: G W 2.6.28.5 #7 [292334.105886] Call Trace: [292334.105904] <IRQ> [<ffffffff80240b64>] warn_on_slowpath+0x64/0xa0 [292334.105955] [<ffffffffa008cf9a>] ccmp_encrypt_skb+0x1ba/0x220 [mac80211] [292334.105995] [<ffffffffa009d2bf>] ieee80211_duration+0x1af/0x230 [mac80211] [292334.106032] [<ffffffffa0017a3c>] b43_dma_tx+0x9fc/0xa30 [b43] [292334.106070] [<ffffffffa009e19e>] invoke_tx_handlers+0xe5e/0xfb0 [mac80211] [292334.106104] [<ffffffffa0001d84>] b43_op_tx+0x74/0xe0 [b43] [292334.106141] [<ffffffffa009e9f6>] __ieee80211_tx+0x56/0x160 [mac80211] [292334.106180] [<ffffffffa009f992>] ieee80211_master_start_xmit+0x272/0x530 [mac80211] [292334.106224] [<ffffffff8062a70e>] __qdisc_run+0x20e/0x260 [292334.106928] [<ffffffff8060c770>] net_tx_action+0xe0/0x130 [292334.106953] [<ffffffff80246803>] __do_softirq+0x93/0x160 [292334.106980] [<ffffffff8020d49c>] call_softirq+0x1c/0x30 [292334.107003] <EOI> [<ffffffff8020ee45>] do_softirq+0x35/0x70 [292334.107034] [<ffffffff802466d5>] local_bh_enable+0xa5/0xb0 [292334.107060] [<ffffffff8060e9fc>] dev_queue_xmit+0xfc/0x570 [292334.107088] [<ffffffff8067e486>] ip_queue_xmit+0x1f6/0x3e0 [292334.107114] [<ffffffff80686cbf>] sk_stream_alloc_skb+0x3f/0x110 [292334.107140] [<ffffffff8069151b>] tcp_transmit_skb+0x4eb/0x760 [292334.107167] [<ffffffff80693ec0>] __tcp_push_pending_frames+0x260/0x960 [292334.107195] [<ffffffff80690a1c>] tcp_current_mss+0x5c/0x100 [292334.107221] [<ffffffff80687f12>] tcp_sendpage+0x652/0x6e0 [292334.107247] [<ffffffff805feea6>] kernel_sendpage+0x16/0x40 [292334.107274] [<ffffffff80740f56>] svc_sendto+0x216/0x360 [292334.107300] [<ffffffff803786c1>] encode_fattr3+0x141/0x1f0 [292334.107326] [<ffffffff80378831>] encode_post_op_attr+0xc1/0xd0 [292334.107353] [<ffffffff80741d8c>] svc_tcp_sendto+0x4c/0xb0 [292334.107380] [<ffffffff8074be0b>] svc_send+0x9b/0xd0 [292334.107404] [<ffffffff8073f6f2>] svc_process+0x232/0x800 [292334.107429] [<ffffffff80239f50>] default_wake_function+0x0/0x10 [292334.107458] [<ffffffff8076e4c7>] __down_read+0x17/0xa6 [292334.107484] [<ffffffff80369639>] nfsd+0x1a9/0x2c0 [292334.107509] [<ffffffff80369490>] nfsd+0x0/0x2c0 [292334.107534] [<ffffffff80256da7>] kthread+0x47/0x90 [292334.107558] [<ffffffff8023dfb7>] schedule_tail+0x27/0x70 [292334.107583] [<ffffffff8020d139>] child_rip+0xa/0x11 [292334.107608] [<ffffffff80256d60>] kthread+0x0/0x90 [292334.107633] [<ffffffff8020d12f>] child_rip+0x0/0x11 [292334.107657] ---[ end trace 43778c870e1cf6c0 ]--- It indicates that mac80211 queued a frame on the queue although ieee80211_stop_queue(dev->wl->hw, skb_get_queue_mapping(skb)); was called on that queue. This seems to only happen with fragmentation turned on (fts = 1024). (I only noticed it after I turned fragmentation on, so...) I'm not sure if it's related to AP mode, but this machine is in AP mode. -- Greetings, Michael. -- 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
