Hi Daniel, > Hi, > > Testing mwifiex_sdio on XO-4 (8787) on Linux 3.8. In OLPC's use case > we quite regularly will power down the wireless card when it is not > being actively used. This is currently proving problematic. I have an XO-4. Perhaps I can update to kernel 3.8? > > Here is a test case reproducing one of the failures we are seeing: > > First, run this script: > > insmod mwifiex_sdio.ko > sleep 1 > ifconfig eth0 up > iwlist eth0 scan & > sleep 0.5 > rmmod mwifiex_sdio > > It normally runs fine the first time, no errors, but run it again and > it terminates with these errors: > > mwifiex_sdio mmc0:0001:1: rx_pending=0, tx_pending=0, cmd_pending=-1 > eth0 Failed to read scan data : No such device > > From this point, things are pretty screwed up. Try to load the driver again... > > insmod mwifiex_sdio.ko > mwifiex_sdio mmc0:0001:1: WLAN FW already running! Skip FW dnld > mwifiex_sdio mmc0:0001:1: WLAN FW is active > mwifiex_sdio mmc0:0001:1: mwifiex_cmd_timeout_func: Timeout cmd id > (331.391420) = 0xa9, act = 0x0 > mwifiex_sdio mmc0:0001:1: num_data_h2c_failure = 0 > mwifiex_sdio mmc0:0001:1: num_cmd_h2c_failure = 0 > mwifiex_sdio mmc0:0001:1: num_cmd_timeout = 1 > mwifiex_sdio mmc0:0001:1: num_tx_timeout = 0 > mwifiex_sdio mmc0:0001:1: last_cmd_index = 1 > mwifiex_sdio mmc0:0001:1: last_cmd_id: 00 00 a9 00 00 00 00 00 00 00 > mwifiex_sdio mmc0:0001:1: last_cmd_act: 00 00 00 00 00 00 00 00 00 00 > mwifiex_sdio mmc0:0001:1: last_cmd_resp_index = 0 > mwifiex_sdio mmc0:0001:1: last_cmd_resp_id: 00 00 00 00 00 00 00 00 00 00 > mwifiex_sdio mmc0:0001:1: last_event_index = 0 > mwifiex_sdio mmc0:0001:1: last_event: 00 00 00 00 00 00 00 00 00 00 > mwifiex_sdio mmc0:0001:1: data_sent=1 cmd_sent=1 > mwifiex_sdio mmc0:0001:1: ps_mode=0 ps_state=0 > mwifiex_sdio mmc0:0001:1: cmd timeout > mwifiex_sdio: Resetting card... > WARNING: driver mwifiex_sdio did not remove its interrupt handler! > mmc0: card 0001 removed > > and it doesn't come back. > > Let me know how we can help further debugging. I will try this test with my SD8787 card and get back to you later. Thanks, Bing > > Thanks > Daniel -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
