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From: Andrew Morton <akpm@osdl.org>
To: Jesse Barnes <jbarnes@engr.sgi.com>
Cc: ebiederm@xmission.com, kaos@sgi.com,
	linux-kernel@vger.kernel.org, suparna@in.ibm.com,
	mbligh@aracnet.com, fastboot@osdl.org
Subject: Re: Announce: dumpfs v0.01 - common RAS output API
Date: Wed, 28 Jul 2004 12:44:05 -0700	[thread overview]
Message-ID: <20040728124405.1a934bec.akpm@osdl.org> (raw)
In-Reply-To: <200407281106.17626.jbarnes@engr.sgi.com>

Jesse Barnes <jbarnes@engr.sgi.com> wrote:
>
> On Wednesday, July 28, 2004 11:00 am, Eric W. Biederman wrote:
> > > I think this could end up being a good thing.  It gives more people a
> > > stake in making sure that driver shutdown() routines work well.
> >
> > Which actually is one of the items open for discussion currently.
> > For kexec on panic do we want to run the shutdown() routines?
> 
> We'll have to do something about incoming dma traffic and other stuff that the 
> devices might be doing.  Maybe a arch specific callout to do some chipset 
> stuff?
> 

Does ongoing DMA actually matter?  After all,the memory which is being
dma-ed into is pre-reserved and allocated for that purpose, and the dump
kernel won't be using it.

It would be polite to pause for a number of seconds to allow things to go
quiet, but apart from that I think all we need to ensure is that the
drivers in the dump kernel firmly whack the hardware before reinitialising
it?


  parent reply	other threads:[~2004-07-28 19:46 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-22 16:19 Announce: dumpfs v0.01 - common RAS output API Keith Owens
2004-07-26  6:57 ` Andrew Morton
2004-07-28  1:53   ` Eric W. Biederman
2004-07-28 10:54     ` Suparna Bhattacharya
2004-07-28 10:46       ` [Fastboot] " Alan Cox
2004-07-28 14:38         ` Martin J. Bligh
2004-07-28 14:06           ` Alan Cox
2004-07-28 15:21             ` Martin J. Bligh
2004-07-28 15:56               ` Eric W. Biederman
2004-07-28 17:09               ` Andrea Arcangeli
2004-07-28 16:05             ` Eric W. Biederman
2004-07-28 15:42         ` Eric W. Biederman
2004-07-28 15:12       ` Eric W. Biederman
2004-07-28 15:23         ` Martin J. Bligh
2004-07-28 15:53           ` Eric W. Biederman
2004-07-28 16:03     ` Jesse Barnes
2004-07-28 18:00       ` Eric W. Biederman
2004-07-28 18:06         ` Jesse Barnes
2004-07-28 19:42           ` Martin J. Bligh
2004-07-28 19:56             ` [Fastboot] " Alan Cox
2004-07-28 19:44           ` Andrew Morton [this message]
2004-07-28 23:11             ` Eric W. Biederman
2004-07-28 22:53               ` Alan Cox
2004-07-29  1:12                 ` Eric W. Biederman
2004-07-29 14:00                   ` Alan Cox
2004-07-29 15:47                     ` Eric W. Biederman
2004-07-28 18:21         ` Alan Cox
2004-07-28 19:23       ` Martin J. Bligh
2004-07-28 20:28         ` [Fastboot] " Eric W. Biederman
2004-07-28 20:33           ` Andrew Morton
2004-07-28 19:59             ` Alan Cox
2004-07-28 22:42               ` Andrew Morton
2004-07-28 22:44                 ` Jesse Barnes
2004-07-28 23:17               ` Eric W. Biederman
2004-07-28 22:55                 ` Alan Cox
2004-07-29  0:22                   ` Andrew Morton
2004-07-29 13:57                     ` Alan Cox
2004-07-29 18:17                       ` Andrew Morton
2004-07-29 21:20                         ` Alan Cox
2004-07-29 22:30                           ` Gerrit Huizenga
2004-07-30  0:04                             ` Eric W. Biederman
2004-07-29 23:25                               ` Alan Cox
2004-07-30  4:07                                 ` Eric W. Biederman
2004-07-30 12:38                               ` Gerrit Huizenga
2004-07-31 13:52                         ` Matthias Urlichs
2004-07-30 15:24                       ` Olivier Galibert
2004-07-29  1:05                   ` Eric W. Biederman
2004-07-29 14:12                     ` Martin J. Bligh
2004-07-28 23:44                 ` Andrew Morton
2004-07-29  0:58                   ` Eric W. Biederman
2004-07-29  1:09                     ` Andrew Morton
2004-07-29  1:56                       ` Eric W. Biederman
2004-07-29 14:18                         ` Martin J. Bligh
2004-07-29 16:01                           ` Eric W. Biederman
2004-07-29 16:19                           ` Eric W. Biederman
2004-07-29 14:08                   ` Martin J. Bligh
2004-07-29 15:52                     ` Eric W. Biederman
2004-07-29 16:13                       ` Martin J. Bligh
2004-07-29 17:12                   ` Matthias Urlichs
  -- strict thread matches above, loose matches on Subject: below --
2004-07-22 15:42 Dan Kegel

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