I'm now able able to prevent the CM9 to lock up. I changed the RX/TX DMA burst size from 128 bytes to 16 bytes. When I stream TCP data, I still some issues. The TX queue gets stuck and when it tries to reset it cannot stop the RX dma.
ath5k phy0: (ath5k_tx_complete_poll_work:2306): TX queue stuck 2 ath5k phy0: (ath5k_tx_complete_poll_work:2321): TX queues stuck, resetting ath5k phy0: (ath5k_reset:2665): resetting ath5k phy0: (ath5k_hw_stop_rx_dma:77): failed to stop RX DMA ! ath5k phy0: (ath5k_rx_start:1120): cachelsz 32 rx_bufsize 2368 As a result my TCP connection is interrupted and recovers. Here are the queue stats from debugfs: available txbuffers: 196 00: setup len: 0 bufs: 0 stuck: 0 01: setup len: 0 bufs: 0 stuck: 0 02: setup len: 4 bufs: 4 stuck: 16 03: setup len: 0 bufs: 0 stuck: 0 04: not setup 05: not setup 06: setup len: 0 bufs: 0 stuck: 0 07: not setup 08: not setup 09: not setup As a side note, on the same platform (ARM9-297 Mhz)I can have an AR9160 or AR9220 (using ath9k) it works great. Any idea why with ath5k I'm running inot these issues? _______________________________________________ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
