From: Grant Grundler <iod00d@hp.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Randy.Dunlap" <rddunlap@osdl.org>,
Jesse Barnes <jbarnes@engr.sgi.com>,
linux-ia64@vger.kernel.org, fastboot@osdl.org,
linux-kernel@vger.kernel.org
Subject: Re: [BROKEN PATCH] kexec for ia64
Date: Wed, 04 Aug 2004 23:33:35 +0000 [thread overview]
Message-ID: <20040804233335.GD548@cup.hp.com> (raw)
In-Reply-To: <m18ycvhx1j.fsf@ebiederm.dsl.xmission.com>
On Wed, Aug 04, 2004 at 07:07:04AM -0600, Eric W. Biederman wrote:
> Initially that patch
> was targeted for a kernel without device_shutdown(), so I was
> likely considering the old trick of running through all of the PCI
> devices and disabling their bus master bit.
Blindly disabling all PCI bus master bits will also kill VGA/serial
console and any USB keyboard attached to the system.
I'll comment more on the "DMA is a Red Herring" when I can read
more what it is about.
grant
WARNING: multiple messages have this Message-ID (diff)
From: Grant Grundler <iod00d@hp.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Randy.Dunlap" <rddunlap@osdl.org>,
Jesse Barnes <jbarnes@engr.sgi.com>,
linux-ia64@vger.kernel.org, fastboot@osdl.org,
linux-kernel@vger.kernel.org
Subject: Re: [BROKEN PATCH] kexec for ia64
Date: Wed, 4 Aug 2004 16:33:35 -0700 [thread overview]
Message-ID: <20040804233335.GD548@cup.hp.com> (raw)
In-Reply-To: <m18ycvhx1j.fsf@ebiederm.dsl.xmission.com>
On Wed, Aug 04, 2004 at 07:07:04AM -0600, Eric W. Biederman wrote:
> Initially that patch
> was targeted for a kernel without device_shutdown(), so I was
> likely considering the old trick of running through all of the PCI
> devices and disabling their bus master bit.
Blindly disabling all PCI bus master bits will also kill VGA/serial
console and any USB keyboard attached to the system.
I'll comment more on the "DMA is a Red Herring" when I can read
more what it is about.
grant
next prev parent reply other threads:[~2004-08-04 23:33 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-26 22:24 [BROKEN PATCH] kexec for ia64 Jesse Barnes
2004-07-26 22:36 ` Jesse Barnes
2004-07-26 23:09 ` David Mosberger
2004-07-26 23:30 ` David Mosberger
2004-07-26 23:34 ` Jesse Barnes
2004-07-26 23:42 ` David Mosberger
2004-07-27 8:24 ` Christian Hildner
2004-07-27 14:49 ` Jesse Barnes
2004-07-27 16:50 ` Luck, Tony
2004-07-30 22:55 ` Randy.Dunlap
2004-08-04 13:07 ` Eric W. Biederman
2004-08-04 13:07 ` Eric W. Biederman
2004-08-04 16:24 ` Jesse Barnes
2004-08-04 16:24 ` Jesse Barnes
2004-08-04 23:33 ` Grant Grundler [this message]
2004-08-04 23:33 ` Grant Grundler
2004-08-05 2:14 ` [Fastboot] " Eric W. Biederman
2004-08-05 2:14 ` Eric W. Biederman
2004-08-05 15:39 ` Grant Grundler
2004-08-05 15:39 ` Grant Grundler
2004-08-05 16:44 ` Eric W. Biederman
2004-08-05 16:44 ` Eric W. Biederman
2004-08-05 19:44 ` Tolentino, Matthew E
2004-08-05 19:44 ` Tolentino, Matthew E
2004-08-05 21:29 ` Eric W. Biederman
2004-08-05 21:29 ` Eric W. Biederman
2004-08-05 22:15 ` Eric W. Biederman
2004-08-05 16:45 ` Luck, Tony
2004-08-05 16:45 ` Luck, Tony
2004-08-05 17:05 ` [Fastboot] " Eric W. Biederman
2004-08-05 17:05 ` Eric W. Biederman
2004-08-05 19:18 ` Khalid Aziz
2004-08-05 19:18 ` Khalid Aziz
2004-08-05 18:28 ` Grant Grundler
2004-08-05 18:56 ` Eric W. Biederman
2004-08-05 21:24 ` Grant Grundler
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