Messages in this thread | | | Date | Thu, 3 Aug 2006 13:28:36 -0400 | From | Theodore Tso <> | Subject | Re: [PATCH -rt DO NOT APPLY] Fix for tg3 networking lockup |
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On Thu, Aug 03, 2006 at 09:49:17AM -0700, Randy.Dunlap wrote: > Interesting. On my Dell D610 notebook with tg3 and vpn, > I have to ping a server on the vpn to keep it alive, otherwise > it disappears soon and I have to restart the vpn. Of course, > this could just be the vpn or some other software problem > instead of a tg3 problem.
That sounds almost certainly like a VPN problem. The tg3_timer() code wakes up every second or tenth of a second (depending on which mode you're in) and takes care of keeping the tg3 hardware mollified. On a standard kernel, this shouldn't ever be an issue. For the -rt kernel, this problem only shows up if you have enough tasks running at rtprio's above the rtprio of the softirq-timer for long enough that tg3 chip gets angry....
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