PROBLEM: lots of frame errors with madwifi + PCI1225 CardBridge

Using a madwifi card on my Dell CP/x laptop gives lots of frame errors, sample ifconfig output:

ath0      Link encap:Ethernet  HWaddr 00:02:6F:20:40:B0
         inet addr:192.168.0.2  Bcast:192.168.0.255  Mask:255.255.255.0
         inet6 addr: fe80::202:6fff:fe20:40b0/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1492  Metric:1
         RX packets:2290848 errors:399943 dropped:0 overruns:0 frame:399943
         TX packets:2815939 errors:39 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:199
         RX bytes:2301147152 (2.1 GiB)  TX bytes:2026627717 (1.8 GiB)
         Interrupt:11 Memory:d0979000-d0989000

Possible similar problem with madwifi and an O2Micro bridge is solved here with patch (disabling read prefetch / write burst in CardBridge):

http://seclists.org/lists/linux-kernel/2005/Jul/5708.html

Attachments with system info, any help would be appreciated.

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Brad Corsello

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