On Feb 8, 2011, at 10:10 AM, Lev Serebryakov wrote: > Hello, Karim. > You wrote 8 февраля 2011 г., 6:29:53: > >> Precisely, the exact same behavior happens (RX hang) if options >> DEVICE_POLLING is _not_ used in the kernel configuration file. I tried with >> POLLING since someone mentioned that it helped in a case mentioned earlier >> today. Unfortunately for igb with or without polling yields the same rx ring >> filing problem. > In my case (em(4), not igb(4) but symptoms are VERY similar) POLLING > (both as kernel option AND "ifconfig em0 polling") options leads to > resets (which drops all connections!) AFTER such kernel messages: > > em0: Watchdog timeout -- resetting > em0: Queue(0) tdh = 1302, hw tdt = 1265 > em0: TX(0) desc avail = 31,Next TX to Clean = 1296 Can you apply the attached patch and report what the output for rx_nxt_refresh and rx_nxt_check is?
Best regards Michael
patch
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> > -- > // Black Lion AKA Lev Serebryakov <l...@serebryakov.spb.ru> > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org" >
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