From: Ben Greear <greearb@candelatech.com>
To: tim.gardner@canonical.com
Cc: netdev <netdev@vger.kernel.org>
Subject: Re: 2.6.38 dev_watchdog WARNING
Date: Tue, 19 Apr 2011 11:20:48 -0700 [thread overview]
Message-ID: <4DADD280.70104@candelatech.com> (raw)
In-Reply-To: <4DADC8F2.9050700@canonical.com>
On 04/19/2011 10:40 AM, Tim Gardner wrote:
> I'm seeing a lot of these kinds of bugs: WARNING: at
> /build/buildd/linux-2.6.38/net/sched/sch_generic.c:256
> dev_watchdog+0x213/0x220()
>
> The kernel is 2.6.38.2 plus Ubuntu cruft.
>
> A spot check of the 200+ hits on this string indicates they are
> primarily due to these drivers:
>
> ipheth
> atl1c
> sis900
> r8169
>
> As far as I can tell the warning happens when link is down on the media
> (and has never been link UP) and are sent a transmit packet which never
> completes. Is there a net/core or net/sched requirement to which these
> drivers do not conform ? Are they not correctly indicating link status?
r8169 doesn't report link right for me...
No idea about the rest.
Ben
>
> rtg
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
next prev parent reply other threads:[~2011-04-19 18:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-19 17:40 2.6.38 dev_watchdog WARNING Tim Gardner
2011-04-19 18:20 ` Ben Greear [this message]
2011-04-19 18:49 ` Ben Hutchings
2011-04-20 17:59 ` Fix atl1c event race (was Re: 2.6.38 dev_watchdog WARNING) Tim Gardner
2011-04-20 18:13 ` Ben Hutchings
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