linux-kernel - Re: BUG: scheduling while atomic: ifconfig/0x00000002/4170

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Message-Id: <E1ITGb2-0006Be-00@gondolin.me.apana.org.au>
Date:	Thu, 06 Sep 2007 20:36:32 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	johannes@...solutions.net (Johannes Berg)
Cc:	herbert@...dor.apana.org.au, satyam@...radead.org, flo@...822.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	linux-wireless@...r.kernel.org, michal.k.k.piotrowski@...il.com,
	ipw3945-devel@...ts.sourceforge.net, yi.zhu@...el.com,
	flamingice@...rmilk.net
Subject: Re: BUG: scheduling while atomic: ifconfig/0x00000002/4170

Johannes Berg <johannes@...solutions.net> wrote:
>
> Hah, I suspected as much but didn't have a chance to look yet. I had
> plans to replace that sub_if_list with an RCU list and not require the
> lock there, but that's far off. Any ideas how to fix this? We can't
> reject the master stop so we have to walk the list, I guess we'll have
> to audit the other list manipulation places, I think they're all under
> RTNL.

Yeah I think they're all under RTNL too.  So you don't need to
take the lock here at all since you should already have the RTNL.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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