On Wednesday, 8 November 2006 at 9:26:26 -0700, Scott Long wrote: > Jeremy Chadwick wrote: > >On Wed, Nov 08, 2006 at 04:40:03PM +0200, Nikolay Pavlov wrote: > >>Well i have 5.5 box with very similar symptomatic :) > >>I do not see watchdog timeouts on it, but a lot of UP/DOWN events. > > > >Are you sure this is the same problem as what's being discussed > >here? If you revert to a previous kernel or em driver, does the > >problem (link up/down) go away? Are you sure you don't actually > >have a flaky cable or RJ45 connector? What does the switch your > >NIC is connected to say? (does it show link going up and down) > > > >I feel horrible for both Scott and Jack -- I think there's tons > >of people coming out of the woodwork with "ME TOO" comments who > >may in fact be suffering from other problems, and are looking for > >a scapegoat thread. > > > > The timeout/watchdog mechanism in the interface layer has been a problem > ever since the MPSAFE work was done on the network stack. It's prone to > races, and as the OS has improved and gotten faster over the past 2 > years, those races have gotten bigger. In a way, it's a actually a > positive indication of progress and improvement =-) > > I don't doubt that there are users with other problems. We spent some > time collecting as much user data as we could in order to find patterns > and weed out the uncommon cases. But this timer/watchdog thing looks to > be a strong candidate for being the root cause of many of the problems. > We'll continue to investigate these problems and address other drivers. > > Scott
Thanks Scott. From my side, I'd like to say that I'm always ready to help you in testing. -- ====================================================================== - Best regards, Nikolay Pavlov. <<<----------------------------------- ====================================================================== _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
