netdev - Re: 2.6.24-rc1 fails with lockup - /sbin/ifconfig / inet_ioctl() / dev_close() / rtl8169

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Message-ID: <20071026175613.GA18770@elte.hu>
Date:	Fri, 26 Oct 2007 19:56:13 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Stephen Hemminger <shemminger@...ux-foundation.org>
Cc:	Francois Romieu <romieu@...zoreil.com>,
	Romano Giannetti <romanol@...omillas.es>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Edward Hsu <edward_hsu@...ltek.com.tw>,
	Jeff Garzik <jeff@...zik.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: 2.6.24-rc1 fails with lockup - /sbin/ifconfig / inet_ioctl() /
	dev_close() / rtl8169_down()


* Stephen Hemminger <shemminger@...ux-foundation.org> wrote:

> > hm, from your log it appears that lockdep did not find anything, 
> > still the hang does trigger.
> > 
> > it's /sbin/ifconfig and inet_ioctl() / dev_close() / rtl8169_down() 
> > that seems to be hanging. I've extracted the relevant backtrace 
> > below. I've Cc:-ed people who might have a better idea about what's 
> > going on.
> 
> Are you building with NAPI enabled or not. Looks like the following 
> might help the non-napi case.

the config from:

  http://www.dea.icai.upcomillas.es/romano/linux/info/2624rc1_1/

suggests that NAPI was disabled:

  CONFIG_R8169=m
  # CONFIG_R8169_NAPI is not set
  CONFIG_R8169_VLAN=y

	Ingo
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