From: arjan@fenrus.demon.nl (Arjan van de Ven)
To: jgarzik@mandrakesoft.com (Jeff Garzik)
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] RFC: fix ethernet device initialization
Date: Wed, 7 Mar 2001 21:41:35 +0000 (GMT) [thread overview]
Message-ID: <m14algd-000ObPC@amadeus.home.nl> (raw)
In-Reply-To: <3AA6A570.57FF2D36@mandrakesoft.com> <3AA6A6D6.70877AA3@mandrakesoft.com>
In article <3AA6A6D6.70877AA3@mandrakesoft.com> you wrote:
> This bug, which I fix, isn't causing oops AFAIK, just
> exporting ugliness to user space etc.
It CAN and IS causing oopses. init_etherdev() causes /sbin/hotplug to be
invoked, which in turn ifconfig up's the interface.
Several (if not all) drivers have an _up() function which cannot handle
not-yet initialized device nodes.
Now we don't see this often as on UP systems, /sbin/hotplug is only started
_after_ the probe function either sleeps or exits, and 95% of the probe
functions don't sleep. (The ones that do are indeed reported to oops)
For SMP systems, I guess not that many have cardbus or other hotplug NICs....
Greetings,
Arjan van de Ven
next prev parent reply other threads:[~2001-03-07 21:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-07 21:17 [PATCH] RFC: fix ethernet device initialization Jeff Garzik
2001-03-07 21:23 ` Jeff Garzik
2001-03-07 21:41 ` Arjan van de Ven [this message]
2001-03-07 22:16 ` Jeff Garzik
2001-03-07 23:13 ` Andrew Morton
2001-03-07 23:23 ` Alan Cox
2001-03-08 17:35 ` Jes Sorensen
2001-03-11 3:25 ` Jeff Garzik
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