Pyun YongHyeon schrieb: > On Wed, Apr 04, 2007 at 09:27:00PM +0200, Rainer Hurling wrote: > > Pyun YongHyeon schrieb: > > >On Tue, Apr 03, 2007 at 06:49:42PM +0200, Rainer Hurling wrote: > > > > > >[...] > > > > > > > > In "man ehci(4)" I found: > > > > > > > > ------- > > > > BUGS > > > > The driver is not finished and is quite buggy. > > > > There is currently no support for isochronous transfers. > > > > ------- > > > > > > > > Possibly this could cause the observed "dropouts" of nfe0 from a few > > > > seconds till several minutes? > > > > > > > > > >I'm not familiar with ehci(4) but I think it has nothing to do with > > >missing Tx completion interrupts observed on nfe(4). > > > > > > > > > > > Is there a knob or option in driver nfe(4) I can use to try classical > > > > polling or any 'lower' mode of operation? > > > > > > > > > >Add 'options DEVICE_POLLING' into kernel configuration file and > > >rebuild your kernel. Use ifconfig(8) to enable/disable polling(4) > > >feature. > > >See polling(4) for more detailed description and tuning parameters. > > > > > > > Thank you for this hint. I compiled my kernel with 'options > > DEVICE_POLLING' and reboot. > > > > For the first four hours I get no new watchdog timeouts. But then, > > without heavy load and without using usb devices, I get many timeouts. > > > > Obiously nfe(4) does not support this polling feature? Or we are looking > > at the wrong side ... > > > > Did you enable polling feature with ifconfig(8)? > (e.g. ifconfig nfe0 polling) > You should see POLLING in flags field in ifconfig output. You are right. I forgot to set the flag, in my case 'ifconfig_nfe0="DHCP polling"' in /etc/rc.conf, sorry. Now it works like a charm :-) Thank you, RainerReceived on Thu Apr 05 2007 - 04:00:45 UTC
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