From: Jarek Poplawski <jarkao2@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: mpm@selenic.com, marcin.slusarz@gmail.com,
netdev@vger.kernel.org, k-keiichi@bx.jp.nec.com,
stable@kernel.org, rjw@sisk.pl, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] netconsole: fix BUG during net device "upping"
Date: Tue, 24 Mar 2009 08:22:14 +0000 [thread overview]
Message-ID: <20090324082214.GA4776@ff.dom.local> (raw)
In-Reply-To: <20090323081158.GB4976@ff.dom.local>
On Mon, Mar 23, 2009 at 08:11:58AM +0000, Jarek Poplawski wrote:
> On Mon, Mar 23, 2009 at 01:05:41AM -0700, David Miller wrote:
> > From: Jarek Poplawski <jarkao2@gmail.com>
> > Date: Mon, 23 Mar 2009 08:04:55 +0000
> >
> > > What is the rationale of this decision? printk is a basic tool,
> > > especially designed to work in as many places as possible, and
> > > netconsole is rather something secondary (sorry Matt)?!
> >
> > And this basic tool cannot work from the drivers ->open() method.
>
> And in any function used in the drivers ->open(). BTW, with Marcin's
> patch it can...
And from any function called anywhere on another cpu while driver's
->open() is running.
BTW, I've had a look at this and it seems the main problem is
netif_tx_stopped() isn't handled properly by the driver(s).
Jarek P.
prev parent reply other threads:[~2009-03-24 8:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-22 11:02 [PATCH] netconsole: fix BUG during net device "upping" Marcin Slusarz
2009-03-23 1:20 ` Matt Mackall
2009-03-23 4:21 ` David Miller
2009-03-23 8:04 ` Jarek Poplawski
2009-03-23 8:05 ` David Miller
2009-03-23 8:11 ` Jarek Poplawski
2009-03-23 8:15 ` David Miller
2009-03-23 9:20 ` Jarek Poplawski
2009-03-24 8:22 ` Jarek Poplawski [this message]
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