From: "David S. Miller" <davem@davemloft.net>
To: benh@kernel.crashing.org
Cc: johannes@sipsolutions.net, linux-kernel@vger.kernel.org,
davem@redhat.com, eric.lemoine@gmail.com
Subject: Re: sungem hangs in atomic if netconsole enabled but no carrier
Date: Tue, 20 Dec 2005 13:23:58 -0800 (PST) [thread overview]
Message-ID: <20051220.132358.106631597.davem@davemloft.net> (raw)
In-Reply-To: <1135113521.10035.107.camel@gaston>
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Wed, 21 Dec 2005 08:18:40 +1100
>
> > Turns out that if I remove the netconsole=... option to my kernel, all
> > works fine and the system no longer hangs. Obviously not plugging in a
> > network cable is pretty useless when netconsole is turned on, but I
> > think it should not hang the system completely. So far I haven't been
> > able to figure out where it actually hangs and don't even know how to do
> > so -- I'm open for suggestions on how to find out why/where it hangs or
> > even fixes.
>
> Hrm... I've heard various reports about problems with netconsole... I've
> never tried it myself so far though. One thing I remember to beware of
> is if sungem does a printk while holding its lock...
I bet that's it, doing a printk while already in the netconsole
printk output path.
next prev parent reply other threads:[~2005-12-20 21:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-20 12:08 Johannes Berg
2005-12-20 21:18 ` Benjamin Herrenschmidt
2005-12-20 21:23 ` David S. Miller [this message]
2005-12-20 22:19 ` Francois Romieu
2005-12-20 22:59 ` Benjamin Herrenschmidt
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