On Mon, Sep 6, 2010 at 4:17 AM, Michael <msbroadf@xxxxxxxxx> wrote: > Im trying the latest compat-wireless 2010-09-05 and i am using a RALINK3027 > 802.11N wireless USB dongle. > > I setup the wifi using hostapd in monitor and managed mode for this adapter, and > it sets up an AP ok, but i notice the following message quite frequently. > > phy0 -> rt2x00usb_watchdog_tx_status: Warning - TX queue 2 status timed out, > invoke forced tx handler > > appears very often and greatly interferes with the TX packets and makes the link > unusable. > > Could someone tell me if this is being worked on, or if I can help somehow fix > it. Im am a software engineer but don't have much kernel level experience. It is being worked on, but it cannot be fully resolved. It is currently simply a fact that the DMA can lockup in the device even the official Ralink driver has a watchdog function which resets the TX queue whenever it detects the lockup. I am currently working on improving the detection, since there can be a DMA timeout and a TX status report timeout. (Where the latter occurs much more often then the DMA timeout). This should decrease the packet loss somewhat, but will not prevent the problems to occur. Ivo -- 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
