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DM8168 usb host and wifi

Michail Scherbak
Prodigy 20 points

Hi!

 I'm using atheros ath9271 usb dongle (tp-link tl-wn722nc) at dm8168 board. I'm using backport 3.12 ath9k_htc driver. Also I use hostapd because I need AP mode. It works well without a high load. When I translate 2-3 rtsp streams to 1-2 devices, the kernel crashes with message "Unable to handle kernel NULL pointer dereference at virtual address 00000000". The kernel crashes in different places, sometimes in the ath driver, sometimes in some parts of IP stack. I have tried ralink rl3070 dongle and it also crashed when I start rtsp server and generate a high load to it. When I use rtsp server and wired ethernet it works good on the same loads.

Thanks.

  • 0
    Expert 1990 points

    here you may find relevant information. what are problems you are facing in case of ralink rl3070? any debug log may be helpful to find issue.

    Best luck

  • 0 in reply to nikunj.rudani
    Prodigy 20 points

    The link was not helpful. The issue the attached messages under a high load with rtsp server. The wifi connection freezes.

    Fullscreen 1220.rt2x.txt Download 
     _____                    _____           _         _   
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_ 
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|  
              |___|                    |___|            

Arago Project http://arago-project.org dm816x-evm ttyO2

Arago 2011.09 dm816x-evm ttyO2

dm816x-evm login: 
(gst-plugin-scanner:1494): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-0.10/libgstmad.so': /usr/lib/libid3tag.so.0: undefined symbol: id3_frametype_obsolete

(gst-plugin-scanner:1494): GLib-GObject-WARNING **: cannot register existing type `GstVideoMixerPad'

(gst-plugin-scanner:1494): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
VPSS_GRPX : please open fb0 node first.
VPSS_GRPX : please open fb1 node first.
VPSS_GRPX : please open fb1 node first.
VPSS_GRPX : please open fb2 node first.
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for offset 0x3064 with error -110
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_vendor_request: Error - Vendor Request 0x06 failed for offset 0x3064 with error -110
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset
ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset