Kernel Panic with atmelwlandriver 2.1.2.2

Hi,

after trying out a Netgear MA311 (which works perfectly, but not with my AP)
and an ADM8211-WL-200P Fiberline PCI-Card (does not work at all) I returned
to my old USB-Wlan-Adapter WL-100UP, wich is an Atmel Device
(http://www.fiberlineeurope.de/Preislisten/fiberline_produkte/wireless_lan/WL100U_P_D.htm)

Since a while I try to get this device running stable, but it will not work.
I used Kernels 2.4.20, 2.4.21 and now 2.4.22pre7 and atmel-driver-version
2.1.2.2.  This is the first release, which is working over a longer 
period and
crashes only happens under a few conditions.

This are mainly firmware-upload-issues (I suppose), e.g. USB-Replug, 
reboot without
"powering down" the usb-device and stuff... But the most annoying thing 
are the crashes
under high load. The average "crash rate" during the download of an 
650mb cd-iso file
is 3 times, the kernel gets a NULL-Pointer-Reference and dies...

Between the Kernel-Panic stuff I could read something about "process: 
hotplug"
so maybe the usb-stuff is it, what produces the crash...

Im am using the uhci.o Module for my MPV3-Via-USB-Controller,
for which lspci -v gave me that infos...

00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 02) (prog-if 00 
[UHCI])
        Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- 
ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 64, cache line size 08
        Interrupt: pin D routed to IRQ 10
        Region 4: I/O ports at e400 [size=32]


While I am writing this, I could watch to a live kernel panic ;)
and the following happens: the usb-Device seemed to disconnect from the 
usb-bus and during reconnect the
crash happens. But, I often saw disconnects of my usb-device, followed 
by reconnects, and after that all worked
fine. Maybe the high activity makes the kernel crashing.. I have no 
idea, and I dont know much about
kernelspace, but I`d like to help debugging, if anyone can tell me how ;)


Greetings,
           Andre.