[Madwifi-users] Kernel Crash in Sample Module

[Andre M. <an...@ma...>]

Hi, I just started using the MADWifi driver and it has been crashing quite 
regularly for me. I have a 3COM 3CRDAG675 wireless PCI adapter (PCI ID: 
10b7:0013r01) on a 1.6.12.4 kernel with the r1367 MADWifi module. The 
initialisation is as follows:
kernel: wlan: 0.8.4.2 (Atheros/multi-bss)
kernel: ath_rate_sample: 1.2
kernel: ath_pci: 0.9.4.5 (Atheros/multi-bss)
kernel: ACPI: PCI Interrupt Link [LNK1] enabled at IRQ 11
kernel: ACPI: PCI Interrupt 0000:01:06.0[A] -> Link [LNK1] -> GSI 11 (level, 
low) -> IRQ 11
kernel: wifi0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 
54Mbps
kernel: wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
kernel: wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 
24Mbps 36Mbps 48Mbps 54Mbps
kernel: wifi0: turboA rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 
54Mbps
kernel: wifi0: turboG rates: 6Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
kernel: wifi0: H/W encryption support: WEP AES AES_CCM TKIP
kernel: wifi0: mac 5.6 phy 4.1 radio 3.6
kernel: wifi0: Use hw queue 1 for WME_AC_BE traffic
kernel: wifi0: Use hw queue 0 for WME_AC_BK traffic
kernel: wifi0: Use hw queue 2 for WME_AC_VI traffic
kernel: wifi0: Use hw queue 3 for WME_AC_VO traffic
kernel: wifi0: Use hw queue 8 for CAB traffic
kernel: wifi0: Use hw queue 9 for beacons
kernel: wifi0: Atheros 5212: mem=0xee000000, irq=11
I then set it up into access point mode and enslave it to a bridge with my 
Ethernet card. I then connect with my Linux notebook with a 3COM 3CRWE154G72 
wireless PCMCIA (prism54) card. If they are sitting right beside each other, 
it seems to be stable. However, once I move it away, I get a kernel bug in 
ath_rate/sample/sample.c:366 some random amount of time later and the system 
locks up (only magic SysRq still works). Attached is the precise output. When 
I am away, the signal strength is not low. I thought it might be only when 
the signal strength is low, so I covered the antennae with foil when they 
were sitting side by side and used a cordless phone that I know interferes 
with wifi, but that didn't seem to cause any upset.

Any suggestions to stop this from happening? Thank you very much. I appreciate 
both your help and your driver.
-- 
--Andre Masella (andre at masella.no-ip.org, masella.no-ip.org, 0x10ECBAE0)

Every program expands until it can send mail...except Exchange.