Hi, when I load b43 with hwtkip=1 system hangs after ' b43-phy0 debug: Using hardware based encryption for keyidx: 0, mac:...' throwing the below BUG. This is a non-SMP non-preemtive kernel. It looks like we are entering b43_op_update_tkip_key() already holding the wl->mutex. We lock mutex in b43_interrupt_thread_handler(). This problem is present in stable and also in compat-wireless-2010-01-22 shapshot if I haven't missed something. As a quick and dirty fix I have removed wl->mutex lock/unlock from b43_op_update_tkip_key(). Box survived one day (until now) and a ~3GB file transfer over WLAN using hwtkip in this way. Jan 22 23:00:29 localhost kernel: [ 865.743138] b43-phy0 debug: Using hardware based encryption for keyidx: 0, mac: .... Jan 22 23:00:29 localhost kernel: [ 865.751462] BUG: scheduling while atomic: irq/10-b43/1914/0x00000100 Jan 22 23:00:29 localhost kernel: [ 865.751646] Modules linked in: b43 ssb mac80211 cfg80211 rfkill snd_via82xx snd_ac97_codec ac97_bus snd_mpu401_uart snd_seq_midi pcmcia snd_rawmidi 8139too pcmcia_core firmware_class 8139cp [last unloaded: compat_firmware_class] Jan 22 23:00:29 localhost kernel: [ 865.752866] Pid: 1914, comm: irq/10-b43 Not tainted 2.6.32.3 #7 Jan 22 23:00:29 localhost kernel: [ 865.753014] Call Trace: Jan 22 23:00:29 localhost kernel: [ 865.753191] [<c13583ee>] ? schedule+0x3e/0x420 Jan 22 23:00:29 localhost kernel: [ 865.753374] [<c101c41d>] ? enqueue_entity+0x7d/0x2d0 Jan 22 23:00:29 localhost kernel: [ 865.753543] [<c1358d36>] ? __mutex_lock_common+0x76/0xc0 Jan 22 23:00:29 localhost kernel: [ 865.753823] [<c4ae1904>] ? rx_tkip_phase1_write+0x74/0x100 [b43] Jan 22 23:00:29 localhost kernel: [ 865.753998] [<c1358d8f>] ? __mutex_lock_slowpath+0xf/0x20 Jan 22 23:00:29 localhost kernel: [ 865.754167] [<c1358c69>] ? mutex_lock+0x9/0x10 Jan 22 23:00:29 localhost kernel: [ 865.754329] [<c1358c69>] ? mutex_lock+0x9/0x10 Jan 22 23:00:29 localhost kernel: [ 865.754539] [<c4ae1a12>] ? b43_op_update_tkip_key+0x82/0x90 [b43] Jan 22 23:00:29 localhost kernel: [ 865.754761] [<c4ae1990>] ? b43_op_update_tkip_key+0x0/0x90 [b43] Jan 22 23:00:29 localhost kernel: [ 865.755068] [<c4a6a17a>] ? ieee80211_tkip_decrypt_data+0x11a/0x190 [mac80211] Jan 22 23:00:29 localhost kernel: [ 865.755335] [<c103981d>] ? getnstimeofday+0x4d/0xd0 Jan 22 23:00:29 localhost kernel: [ 865.755555] [<c4a61a37>] ? ieee80211_crypto_tkip_decrypt+0xa7/0xf0 [mac80211] Jan 22 23:00:29 localhost kernel: [ 865.755871] [<c4a6d02e>] ? ieee80211_invoke_rx_handlers+0x75e/0x18b0 [mac80211] Jan 22 23:00:29 localhost kernel: [ 865.756175] [<c12da735>] ? sock_sendmsg+0x95/0xb0 Jan 22 23:00:29 localhost kernel: [ 865.756343] [<c101c41d>] ? enqueue_entity+0x7d/0x2d0 Jan 22 23:00:29 localhost kernel: [ 865.756573] [<c4a6bff4>] ? prepare_for_handlers+0x24/0x2f0 [mac80211] Jan 22 23:00:29 localhost kernel: [ 865.756813] [<c4a6e7af>] ? ieee80211_rx+0x62f/0x690 [mac80211] Jan 22 23:00:29 localhost kernel: [ 865.757085] [<c4af1b6e>] ? b43_rx+0x43e/0x490 [b43] Jan 22 23:00:29 localhost kernel: [ 865.757321] [<c4af556b>] ? setup_rx_descbuffer+0x3b/0x160 [b43] Jan 22 23:00:29 localhost kernel: [ 865.757549] [<c4af0008>] ? b43_lpphy_op_init+0x668/0xf10 [b43] Jan 22 23:00:29 localhost kernel: [ 865.757776] [<c4af4f06>] ? ssb_dma_sync_single_for_device+0x56/0x60 [b43] Jan 22 23:00:29 localhost kernel: [ 865.758020] [<c4af590d>] ? b43_dma_rx+0x22d/0x290 [b43] Jan 22 23:00:29 localhost kernel: [ 865.758245] [<c4ae5910>] ? b43_do_interrupt_thread+0x5d0/0x750 [b43] Jan 22 23:00:29 localhost kernel: [ 865.758476] [<c4ae5aa5>] ? b43_interrupt_thread_handler+0x15/0x30 [b43] Jan 22 23:00:29 localhost kernel: [ 865.758678] [<c1064bcf>] ? irq_thread+0x6f/0x140 Jan 22 23:00:29 localhost kernel: [ 865.758842] [<c1064b60>] ? irq_thread+0x0/0x140 Jan 22 23:00:29 localhost kernel: [ 865.759022] [<c1032b90>] ? kthread+0x60/0x70 Jan 22 23:00:29 localhost kernel: [ 865.759183] [<c1032b30>] ? kthread+0x0/0x70 Jan 22 23:00:29 localhost kernel: [ 865.759352] [<c1003177>] ? kernel_thread_helper+0x7/0x10 Jan 22 23:02:31 localhost kernel: imklog 3.18.6, log source = /proc/kmsg started. BR Csaba -- 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
