Mine

issue_cmd(ACX1xx_CMD_ENABLE_TX): took 2 jiffies to complete
94957141     <== acxpci_s_issue_cmd_timeo_debug: 00000000
FIXME: Possibly broken code in acx_s_update_card_settings() at /home/devel/acx-mac80211/common.c:3776
updating: enable Rx on channel: 4
94957141     ==> acxpci_s_issue_cmd_timeo_debug
issue_cmd(cmd:ACX1xx_CMD_ENABLE_RX,buflen:1,timeout:50ms,type:0x4104)
input buffer (len=1):
94957141       ==> acx_dump_bytes
94957141       <== acx_dump_bytes
94957141       ==> acxpci_read_cmd_type_status
cmd_type:0000 cmd_status:0000 [Idle]
94957141       <== acxpci_read_cmd_type_status: 00000000
94957141       ==> acxpci_write_cmd_type_status
94957141       <== acxpci_write_cmd_type_status
94957141       ==> acx_s_mwait
94957141         ==> acxpci_i_interrupt
got Command_Complete IRQ
94957142         <== acxpci_i_interrupt
94957143       <== acx_s_mwait
94957143       ==> acxpci_read_cmd_type_status
cmd_type:0003 cmd_status:0001 [Success]
94957144       <== acxpci_read_cmd_type_status: 00000001
94957144       ==> acxpci_write_cmd_type_status
94957144       <== acxpci_write_cmd_type_status
issue_cmd(ACX1xx_CMD_ENABLE_RX): took 3 jiffies to complete
94957144     <== acxpci_s_issue_cmd_timeo_debug: 00000000
94957144   <== acx_s_update_card_settings
94957144 <== acx_net_config
94957151 ==> acx_i_start_xmit
94957151   ==> acxpci_l_alloc_tx
tx: got desc 1, 15 remain
94957151   <== acxpci_l_alloc_tx
since you can read this - acx_l_alloc_tx shouldn't be the problem
maybe it's the memcpy() ???
nah... possibly it's acx_l_tx_data !!!
tx: c8c53ac8d skb->len: 42 ctl: c3bffe0cd skb: c7847070d94957151   ==> acxpci_l_tx_data
1
2
3
4
f.1
f.2
5
yes sir, this is an acx111
6
hostdesc1: c3bfd0b0 hostdesc2: c3bfd108
         : 128          : 128
CB1
wmb1
CB2
CB3
CB4
8
mmiowb
9
write_flush(c47ccf40)10
94957151   <== acxpci_l_tx_data
since you can't read this... acx_l_tx_data is the problem
txresult = OK;
adev->stats.tx_packets = 114
adev->stats.tx_bytes 4788 skb->len 42
txresult = 0
flags: 646next1
94957151 <== acx_i_start_xmit: 00000000
next2
94957151 ==> acxpci_i_interrupt
94957151 <== acxpci_i_interrupt
94957151 ==> acx_interrupt_tasklet
got Tx_Complete IRQ
94957151   ==> acxpci_l_clean_txdesc
tx: desc->Ctl8's: 80 C0 80 80 80 80 80 80 80