[Xen-users] madwifi and Xen

[Luke <secureboot@xxxxxxxxx>]

Is it possible to get madwifi working in a dom0?  When I try, both  
with and without the noacpi on the kernel line in menu.lst, the  
machine crashes all the time, but in different ways (different parts  
of the bootup segfault, and create different sorts of errors).
I built the old madwifi codebase, linked to the Xen kernel source via  
make KERNELPATH=/path_to_xen_kernel
At the very least, i'd love to know if such a thing is possible.

Here's the output from one such bootup that failed on a DLink (dwl- 
g520, well supported under madwifi):
Modules linked in: ip_tables wlan_wep uhci_hcd ath_pci  
ath_rate_sample wlan athtCPU:    0
EIP:    0061:[<c9140527>]    Tainted: P      VLI
EFLAGS: 00010206   (2.6.12.6-xen0)
EIP is at ath_chan_set+0xc7/0x230 [ath_pci]
eax: c0523eb0   ebx: 00000001   ecx: 4aec73ae   edx: 00000006
esi: 000000e2   edi: c760c000   ebp: c7112000   esp: c0523e8c
ds: 007b   es: 007b   ss: 0069
Process swapper (pid: 0, threadinfo=c0522000 task=c0495040)
Stack: c760c000 00000006 c0523eb0 00000001 c0523eac c7557a20 c0495040  
c7112620
       00000007 00a0097b 00000001 000000e2 c7112000 c760c000  
c9140947 c7112000
       c711284e c0523f9c c0523f9c c010c0f2 00000001 c01040c7  
c760c000 c7113ce4
Call Trace:
[<c9140947>] ath_newstate+0x157/0x490 [ath_pci]
[<c010c0f2>] timer_interrupt+0x132/0x270
[<c9179822>] ieee80211_next_scan+0x132/0x190 [wlan]
[<c9140690>] ath_next_scan+0x0/0x20 [ath_pci]
[<c0126a89>] run_timer_softirq+0xa9/0x1f0
[<c0122632>] __do_softirq+0x52/0xc0
[<c01226ea>] do_softirq+0x4a/0x50
[<c010dcd2>] do_IRQ+0x22/0x30
[<c0105873>] evtchn_do_upcall+0x63/0x90
[<c0109a1c>] hypervisor_callback+0x2c/0x34
[<c0107605>] xen_idle+0x35/0x70
[<c0107667>] cpu_idle+0x27/0x40
[<c05247ea>] start_kernel+0x17a/0x1e0
[<c0524360>] unknown_bootoption+0x0/0x1e0
Code: 3c 07 00 00 31 d2 c7 44 24 0c 01 00 00 00 89 3c 24 83 f8 03 0f  
45 d0 8d 4  <0>Kernel panic - not syncing: Fatal exception in interrupt
(XEN) Domain 0 shutdown: rebooting machine.

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