[Madwifi-devel] Debugging stuck beacon

[Andrew L. <and...@as...>]

Hi Folks

I have SVN from today, r3717

Withing a couple of minutes of loading and running an AP i get:

[626266.788000] ath_pci: wifi0: Atheros 5212: mem=0xc4000000, irq=11
[626266.952000] device ath0 entered promiscuous mode
[626266.952000] audit(1213198201.415:42): dev=ath0 prom=256 old_prom=0 auid=4294967295
[626266.952000] br0: port 1(ath0) entering learning state
[626266.956000] br0: topology change detected, propagating
[626266.956000] br0: port 1(ath0) entering forwarding state
[626277.764000] ath0: no IPv6 routers present
[626430.624000] wifi0: ath_bstuck_tasklet: Stuck beacon; resetting (beacon miss count: 11)
[626431.064000] wifi0: FAILED verification of AR5K_PHY_AGCSIZE_DESIRED default value [found=0x0 (0) expected=0xde (-34)].
[626431.064000]        AR5K_PHY_AGCSIZE:0x9850:0x00000000:........ ........ ........ ........:unknown
[626431.064000] wifi0: FAILED verification of AR5K_PHY_AGCCOARSE_LO default value [found=0x0 (0) expected=0xcc (-52)].
[626431.064000]      AR5K_PHY_AGCCOARSE:0x985c:0x00000000:........ ........ ........ ........:unknown
[626431.064000] wifi0: FAILED verification of AR5K_PHY_AGCCOARSE_HI default value [found=0x0 (0) expected=0x6e (-18)].
[626431.064000]      AR5K_PHY_AGCCOARSE:0x985c:0x00000000:........ ........ ........ ........:unknown
[626431.064000] wifi0: FAILED verification of AR5K_PHY_SIG_FIRPWR default value [found=0x0 (0) expected=0xba (-70)].
[626431.064000]            AR5K_PHY_SIG:0x9858:0x00000000:........ ........ ........ ........:unknown
[626431.064000] wifi0: FAILED verification of AR5K_PHY_WEAK_OFDM_LOW_M1 default value [found=0x0 (0) expected=0x32 (50)].
[626431.064000]               (unknown):0x986c:0x00000000:........ ........ ........ ........:unknown
[626431.064000] wifi0: FAILED verification of AR5K_PHY_WEAK_OFDM_LOW_M2 default value [found=0x0 (0) expected=0x28 (40)].
[626431.064000]               (unknown):0x986c:0x00000000:........ ........ ........ ........:unknown
[626431.064000] wifi0: FAILED verification of AR5K_PHY_WEAK_OFDM_LOW_M2_COUNT default value [found=0x0 (0) expected=0x30 (48)].
[626431.064000]               (unknown):0x986c:0x00000000:........ ........ ........ ........:unknown
[626431.064000] wifi0: FAILED verification of AR5K_PHY_WEAK_OFDM_LOW_SELFCOR default value [found=0x0 (0) expected=0x1 (1)].
[626431.064000]               (unknown):0x986c:0x00000000:........ ........ ........ ........:unknown

I see two problems here. The beacon's got stuck and the reset did not
bring the device back to life. All PHY register reads return
0. However unloading and loading the modules does get the device
working again, for a short time before it dies in the same way again.

Any suggests how to debug this? The same card does not have these
beacon problems with 0.9.4, but 0.9.4 is broken in too many other ways
for it to be usable for me.

Thanks
        Andrew