Hi,

You may remember I reported a similar problem almost a year ago:

http://marc.info/?l=linux-wireless&m=119543627712471&w=2

I've never given up hope that the issues could be worked through. So 
I've made a fresh attempt at getting the zd1211rw working under 
sparc64-linux.

As per the previously employed strategy, I have successfully built a 
2.6.26 kernel for sparc64, by taking the configuration for the Debian 
build of this kernel, and additionally configuring the zd1211rw driver. 
I have attached the .config. Note, thinking it might be usefully, I 
enabled CONFIG_ZD1211RW_DEBUG just in case.

I am successfully able to modprobe the driver (in fact, I think it is 
being probed during the boot, as whatever magic effects this kicks in). 
Here is the dmesg output:

[   57.840661] zd1211rw usb_init()
[   57.840933] usb 4-3: print_id() 6891:a727 v4330 high
[   57.950264] usb 4-3: reset high speed USB device using ehci_hcd and 
address 2
[   58.195856] zd1211rw 4-3:1.0: zd_chip_read_mac_addr_fw()
[   58.198901] phy0: Selected rate control algorithm 'pid'
[   58.854432] zd1211rw 4-3:1.0: probe() successful
[   58.854451] zd1211rw 4-3:1.0: phy0
[   58.902168] usbcore: registered new interface driver zd1211rw
[   58.978077] zd1211rw initialized

At this point, I have not touched a wireless-tools tool, and to be sure 
that the problems are not sourced from them, I do not use them.

Instead, I attempt to bring up the interface, by doing:

$ sudo ifconfig wlan0 up

Immediately after executing this command, I start getting console 
messages that report the problems I am reporting in this email. I have 
executed a dmesg, and copied the relevant lines into a separate file 
attached as dmesg.txt (as this may be too big to inline here). Please 
note, a message like:

[  282.300681] Kernel unaligned access at TPC[10129b68] 
zd_mac_rx+0x144/0x32c [zd1211rw]

periodically is reported even after the ifconfig command completes 
(seemingly successfully).

Thanks in advance for your assistance,
Shaddy