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From: ebiederm@xmission.com (Eric W. Biederman)
To: Jeff Garzik <jgarzik@mandrakesoft.com>
Cc: Linus Torvalds <torvalds@transmeta.com>,
	Anders Gustafsson <andersg@0x63.nu>,
	arjanv@redhat.com, linux-kernel@vger.kernel.org, mochel@osdl.org
Subject: Re: [PATCH] devexit fixes in i82092.c
Date: 16 Mar 2002 12:27:21 -0700	[thread overview]
Message-ID: <m1lmcsxqhy.fsf@frodo.biederman.org> (raw)
In-Reply-To: <Pine.LNX.4.33.0203151659060.1379-100000@home.transmeta.com> <3C92AD1F.30909@mandrakesoft.com>
In-Reply-To: <3C92AD1F.30909@mandrakesoft.com>

Jeff Garzik <jgarzik@mandrakesoft.com> writes:

> 
> (thinking vaguely long-term)
> 
> I wonder if mochel already code for this, or has thought about this... Just like
> 
> suspend, IMO we ideally should use the device tree to shutdown the system,
> agreed?
> 
> Further, I wonder if the reboot/shutdown notifiers can be replaced with device
> tree control over those events...

Please for the Linux booting Linux scenario it is mandatory we get this right
for reboot.  I know for a fact that currently we leave active receive buffers on
network cards when we reboot. (If you haven't downed the interface).  So it
is possible for a network packet to come in and hose a machine that is rebooting.

Occasionally I test my linux booting linux code by loading memtest86 to make certain
I don't have something like that going on.  And the first time I tried it I hadn't
downed the interfaces and I actually saw a network packet come in and corrupt
memory.  I also have similar reports from other about disk subsystems.

Eric

  parent reply	other threads:[~2002-03-16 19:33 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-03-16  0:57 [PATCH] devexit fixes in i82092.c Anders Gustafsson
2002-03-16  1:00 ` Linus Torvalds
2002-03-16  2:25   ` Jeff Garzik
2002-03-16  7:40     ` Linus Torvalds
2002-03-16  7:51       ` Keith Owens
2002-03-16  8:13         ` Linus Torvalds
2002-03-16  9:00           ` Jeff Garzik
2002-03-16  9:50           ` Keith Owens
2002-03-25 19:15           ` Patrick Mochel
2002-03-16  8:51       ` Jeff Garzik
2002-03-16 17:35         ` Alan Cox
2002-03-16 17:31           ` Jeff Garzik
2002-03-25 19:19           ` Patrick Mochel
2002-03-16  9:40       ` Arjan van de Ven
2002-03-22 15:47         ` Pavel Machek
2002-03-16 10:32       ` David Woodhouse
2002-03-16 19:27     ` Eric W. Biederman [this message]
2002-03-16 21:00       ` Alan Cox
2002-03-16 22:03         ` Eric W. Biederman
2002-03-16 22:28           ` Alan Cox
2002-03-16 22:16             ` Eric W. Biederman
2002-03-16 22:26             ` Linus Torvalds
2002-03-16 23:00               ` Eric W. Biederman
2002-03-16 23:15               ` Dave Jones
2002-03-21 15:12                 ` Pavel Machek
2002-03-25 19:02     ` Patrick Mochel
  -- strict thread matches above, loose matches on Subject: below --
2002-03-24 23:36 Alexander Stohr

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