From: Theodore Tso <tytso@mit.edu>
To: "Randy.Dunlap" <rdunlap@xenotime.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
davem@davemloft.net, mchan@broadcom.com
Subject: Re: [PATCH -rt DO NOT APPLY] Fix for tg3 networking lockup
Date: Thu, 3 Aug 2006 13:28:36 -0400 [thread overview]
Message-ID: <20060803172836.GF20603@thunk.org> (raw)
In-Reply-To: <20060803094917.8280f5ff.rdunlap@xenotime.net>
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....
- Ted
next prev parent reply other threads:[~2006-08-03 17:28 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-03 7:57 [PATCH -rt DO NOT APPLY] Fix for tg3 networking lockup Theodore Tso
2006-08-03 10:00 ` Herbert Xu
2006-08-03 16:32 ` Theodore Tso
2006-08-03 16:46 ` Daniel Walker
2006-08-03 17:17 ` Theodore Tso
2006-08-03 21:45 ` David Miller
2006-08-03 16:49 ` Randy.Dunlap
2006-08-03 17:04 ` Alistair John Strachan
2006-08-03 21:43 ` David Miller
2006-08-03 17:28 ` Theodore Tso [this message]
2006-08-03 18:36 ` Michael Chan
2006-08-03 20:17 ` Theodore Tso
2006-08-03 21:48 ` David Miller
2006-08-03 23:28 ` Michael Chan
2006-08-03 23:43 ` David Miller
2006-08-04 0:07 ` Theodore Tso
2006-08-04 0:20 ` David Miller
2006-08-04 0:25 ` Arjan van de Ven
2006-08-04 3:23 ` Theodore Tso
2006-08-04 3:45 ` Michael Chan
2006-08-05 20:26 ` Theodore Tso
2006-08-08 6:36 ` Michael Chan
2006-08-25 22:33 ` Marc Bevand
2006-08-25 22:55 ` Michael Chan
2006-08-25 23:48 ` Marc Bevand
2006-08-26 0:01 ` Michael Chan
2006-08-03 23:53 ` Theodore Tso
2006-08-03 23:56 ` David Miller
2006-08-03 23:59 ` Herbert Xu
2006-08-04 0:01 ` David Miller
2006-08-04 0:16 ` Michael Chan
2006-08-04 0:03 ` Daniel Walker
2006-08-07 5:34 ` Steven Rostedt
2006-08-07 6:18 ` David Miller
2006-08-08 12:24 ` Steven Rostedt
2006-08-08 13:13 ` Steven Rostedt
2006-08-08 22:00 ` David Miller
2006-08-08 22:27 ` Steven Rostedt
2006-08-09 11:29 ` Roman Zippel
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