From: Andi Kleen <ak@suse.de>
To: Matt Mackall <mpm@selenic.com>
Cc: Andi Kleen <ak@suse.de>, "David S. Miller" <davem@davemloft.net>,
Andrew Morton <akpm@osdl.org>,
colin@colino.net, netdev@oss.sgi.com
Subject: Re: [PATCH] Prevent netpoll hanging when link is down
Date: Mon, 11 Oct 2004 18:43:15 +0200 [thread overview]
Message-ID: <20041011164315.GH26350@wotan.suse.de> (raw)
In-Reply-To: <20041011163601.GM31237@waste.org>
> It's not recursion on printk that's a problem, it's recursion on
> ->poll() and attempting to take whatever internal driver locks.
There is no recursion on poll because printk will never call into
the low level console driver when the console sem is already taken.
-Andi
P.S.: I made the same mistake long ago, but akpm set me straight.
next prev parent reply other threads:[~2004-10-11 16:43 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20041006232544.53615761@jack.colino.net>
2004-10-06 21:43 ` [PATCH] Prevent netpoll hanging when link is down Matt Mackall
2004-10-07 5:53 ` Colin Leroy
2004-10-07 6:49 ` David S. Miller
2004-10-07 8:33 ` Colin Leroy
2004-10-07 8:45 ` Colin Leroy
2004-10-07 14:05 ` Colin Leroy
2004-10-07 18:28 ` David S. Miller
2004-10-07 18:41 ` Matt Mackall
2004-10-07 20:00 ` Colin Leroy
2004-10-07 18:43 ` Andi Kleen
2004-10-07 20:44 ` Colin Leroy
2004-10-07 21:45 ` Andi Kleen
2004-10-07 21:50 ` Matt Mackall
2004-10-07 22:07 ` David S. Miller
2004-10-07 23:43 ` Matt Mackall
2004-10-07 23:50 ` Andi Kleen
2004-10-08 6:46 ` Colin Leroy
2004-10-08 21:53 ` Matt Mackall
2004-10-08 7:06 ` Colin Leroy
2004-10-08 22:00 ` Matt Mackall
2004-10-08 22:18 ` Andrew Morton
2004-10-11 3:59 ` David S. Miller
2004-10-11 15:40 ` Andi Kleen
2004-10-11 16:22 ` Matt Mackall
2004-10-11 16:32 ` Andi Kleen
2004-10-11 16:36 ` Matt Mackall
2004-10-11 16:43 ` Andi Kleen [this message]
2004-10-11 16:58 ` Matt Mackall
2004-10-11 17:41 ` Andi Kleen
2004-10-11 20:45 ` Colin Leroy
[not found] ` <5cac192f0410181443303379e2@mail.gmail.com>
[not found] ` <5cac192f041018145824acce5a@mail.gmail.com>
[not found] ` <20041020161119.6e30efe5@pirandello>
[not found] ` <5cac192f0410200848179ccc81@mail.gmail.com>
2004-10-21 16:36 ` Colin Leroy
2004-10-24 15:22 ` Eric Lemoine
2004-10-07 22:08 ` David S. Miller
2004-10-08 6:54 ` Colin Leroy
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