From: Maciej S. <mac...@gm...> - 2011-09-23 10:18:06
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> > Hi, > > On Wed, Sep 21, 2011 at 2:31 AM, Maciej Slowik <mac...@gm...> > wrote: > > 2.?????? 2.When starting wifi ? module gets high temperature and driver ? > > libertas hangs with : > > > > libertas: command 0x0013 timed out > > > > libertas: requeueing command 0x0013 due to timeout (#1) > > Is there any more information available with dmesg or the system logs? > Are the timeouts time/number of packets related or temperature > related? E.g. if you keep the wifi module cool, does the error still > occur? If you exercise the wifi heavily, does it fail faster? > > -Ash > Hi, thank you for Your response. Information from libertas: ibertas: command 0x001f timed out libertas: Excessive timeouts submitting command 0x001f libertas: tx watch dog timeout libertas: command 0x001f timed out libertas: requeueing command 0x001f due to timeout (#1) libertas: tx watch dog timeout libertas: command 0x001f timed out libertas: requeueing command 0x001f due to timeout (#2) libertas: command 0x001f timed out libertas: requeueing command 0x001f due to timeout (#3) I test wifi with ping for about 20 minutes and it works fine. When run opkg update - wifi driver libertas hangs with above errors. Now i need to restart gumstix to run wifi again. Module is hot all the time. It seems to me that it hangs only after opkg update. There are problems with power managment also. I use iwconfig wlan0 power on and for a while module gets colder. -Maciek |
From: Ash C. <ash...@gm...> - 2011-09-26 22:16:25
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Hi, Are you using the 2.6.31 kernel? On Fri, Sep 23, 2011 at 3:17 AM, Maciej Slowik <mac...@gm...> wrote: > When run opkg update - wifi driver libertas hangs with above > errors. Now i need to restart gumstix to run wifi again. > Module is hot all the time. It seems to me that it hangs only after opkg > update. > There are problems with power managment also. > I use iwconfig wlan0 power on and for a while module gets colder. I did a little hunting online and it looks like other people have seen similar issues with the libertas driver. Specifically, larger packet sizes cause an error. E.g. http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=5056 A fix is mentioned but this possibly related to that SDIO interface rather than the libertas chipset itself. -Ash |