On Thu, Apr 12, 2012 at 10:28 PM, Sergio Correia <lists@xxxxxxxx> wrote: > Hello Felix, > > On Thu, Apr 12, 2012 at 2:11 PM, Felix Fietkau <nbd@xxxxxxxxxxx> wrote: >> On 2012-04-12 5:35 PM, Michael Leun wrote: >>> On Thu, 12 Apr 2012 16:58:34 +0300 >>> Felipe Contreras <felipe.contreras@xxxxxxxxx> wrote: >>> >>>> On Thu, Apr 12, 2012 at 4:46 PM, Felix Fietkau <nbd@xxxxxxxxxxx> >>>> wrote: >>>> > On 2012-04-09 5:29 PM, Michael Leun wrote: >>>> >> On Mon, 9 Apr 2012 19:52:45 +0530 >>>> >>>> >> Seems obvious to me, that this line >>>> >> >>>> >> if (sc->ps_idle && (sc->ps_flags & PS_WAIT_FOR_TX_ACK)) >>>> >> >>>> >> makes the real difference. >>>> > Please try this patch with plain 3.3.1 or 3.4-rc2 to see if it fixes >>>> > this issue: >>>> >>>> Nope, not here (3.3.1). >>> >>> Also negative for 3.4-rc2, but that SLEEP<>AWAKE noise at the end >>> stopped. Still need "iwconfig wlan0 essid <myssid>" to make it ping >>> again (that not included in log below). >> OK, so my fix is definitely worth submitting, since it gets rid of some >> unnecessary sleep mode transitions. About the iwconfig command: are you >> not using wpa_supplicant? >> >>> Due to Felipes result and 3.4-rc2 didn't repeat my test with 3.3.1, if >>> you think it would add useful information I could. >> Maybe it would be useful to get some more detailed logs from that. >> > > your patch seems to work for me, with 3.3.1: > > this is the log after I disable/re-enable the interface: That is curious, are you saying it doesn't work initially? Maybe we are talking about two different issues, but my issue is easily reproducible 100%; I boot, use iwconfig to ad-hoc mode, set the essid, ip link up, and run wpa_supplicant, at which point it hangs. It's a strange hang; the rest of the system works fine, but wpa_supplicant doesn't respond any more and I hear some noise, as if the CPU was at 100%, but top doesn't show that. With my distro's 3.3.1 kernel I do see the CPU at 100%, although I was trying to connect to a different (non ad-hoc) network. It it's helpful I would gladly test different combinations of patches and networks, just let me know what would you like me to test. Cheers. -- Felipe Contreras -- 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
