From: Andi Kleen <andi@firstfloor.org>
To: Simon Arlott <simon@fire.lp0.eu>
Cc: Francois Romieu <romieu@fr.zoreil.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
netdev@vger.kernel.org
Subject: Re: netconsole system freeze when cable unplugged
Date: 10 Mar 2007 14:38:23 +0100 [thread overview]
Message-ID: <p73r6rx9q28.fsf@bingen.suse.de> (raw)
In-Reply-To: <45F1EE12.2070605@simon.arlott.org.uk>
Simon Arlott <simon@fire.lp0.eu> writes:
> On 09/03/07 20:42, Francois Romieu wrote:
> > Simon Arlott <simon@fire.lp0.eu> :
> >> When I unplug the cable the system just stops responding to
> >> anything, at all. No message is printed to the console when the
> >> cable is plugged back in.
> > rtl8139_interrupt (spin_lock(&tp->lock))
> > -> rtl8139_weird_interrupt
> > -> rtl_check_media
> > -> mii_check_media (printk(KERN_INFO "%s: link down\n", ...))
> > [netpoll stuff here]
> > -> rtl8139_poll_controller
> > -> rtl8139_interrupt
> > *deadlock*
> > See below for my random stuff of the day. Feel free to open a PR at
> > bugzilla.kernel.org if the issue does not go away.
>
> The patch doesn't fix it, nothing changes. I'm not sure how this can
> be debugged if printk won't work...
earlyprintk can be called directly (early_printk()) and should
work. It won't log over the network of course.
-Andi
next prev parent reply other threads:[~2007-03-10 12:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-09 19:35 netconsole system freeze when cable unplugged Simon Arlott
2007-03-09 20:42 ` Francois Romieu
2007-03-09 23:30 ` Simon Arlott
2007-03-10 13:38 ` Andi Kleen [this message]
2007-03-10 14:06 ` Simon Arlott
2007-03-11 7:50 ` Andi Kleen
2007-03-10 20:31 ` Matt Mackall
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