From: Bernhard Walle <bernhard@bwalle.de>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: nhorman@redhat.com, nhorman@tuxdriver.com,
Joerg Roedel <joerg.roedel@amd.com>,
Joerg Roedel <joro@8bytes.org>,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
Chris Wright <chrisw@sous-sol.org>,
hbabu@us.ibm.com, iommu@lists.linux-foundation.org,
vgoyal@redhat.com
Subject: Re: [PATCH 3/4] Revert "x86: disable IOMMUs on kernel crash"
Date: Sun, 04 Apr 2010 09:24:30 +0200 [thread overview]
Message-ID: <4BB83EAE.5090609@bwalle.de> (raw)
In-Reply-To: <m1vdc8juju.fsf@fess.ebiederm.org>
Am 03.04.10 19:49, schrieb Eric W. Biederman:
> Not a problem. We require a lot of things of the kdump kernel,
> and it is immediately apparent in a basic sanity test.
Also, in most cases (for example: distribution kernels), the kdump
kernel nowadays is identical to the running kernel. So, if the running
kernel has IOMMU support, the kdump kernel also has.
Regards,
Bernhard
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kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
WARNING: multiple messages have this Message-ID (diff)
From: Bernhard Walle <bernhard@bwalle.de>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Joerg Roedel <joro@8bytes.org>,
nhorman@redhat.com, nhorman@tuxdriver.com,
Joerg Roedel <joerg.roedel@amd.com>,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
Chris Wright <chrisw@sous-sol.org>,
hbabu@us.ibm.com, iommu@lists.linux-foundation.org,
vgoyal@redhat.com
Subject: Re: [PATCH 3/4] Revert "x86: disable IOMMUs on kernel crash"
Date: Sun, 04 Apr 2010 09:24:30 +0200 [thread overview]
Message-ID: <4BB83EAE.5090609@bwalle.de> (raw)
In-Reply-To: <m1vdc8juju.fsf@fess.ebiederm.org>
Am 03.04.10 19:49, schrieb Eric W. Biederman:
> Not a problem. We require a lot of things of the kdump kernel,
> and it is immediately apparent in a basic sanity test.
Also, in most cases (for example: distribution kernels), the kdump
kernel nowadays is identical to the running kernel. So, if the running
kernel has IOMMU support, the kdump kernel also has.
Regards,
Bernhard
next prev parent reply other threads:[~2010-04-04 7:24 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-03 1:27 [PATCH 0/4] AMD IOMMU kdump fix plus cleanups (v2) Chris Wright
2010-04-03 1:27 ` Chris Wright
2010-04-03 1:27 ` [PATCH 1/4] x86/amd-iommu: enable iommu before attaching devices Chris Wright
2010-04-03 1:27 ` Chris Wright
2010-04-03 1:27 ` [PATCH 2/4] x86/amd-iommu: warn when issuing command to uninitialized cmd buffer Chris Wright
2010-04-03 1:27 ` Chris Wright
2010-04-03 1:27 ` [PATCH 3/4] Revert "x86: disable IOMMUs on kernel crash" Chris Wright
2010-04-03 1:27 ` Chris Wright
2010-04-03 17:22 ` Joerg Roedel
2010-04-03 17:22 ` Joerg Roedel
2010-04-03 17:44 ` Eric W. Biederman
2010-04-03 17:44 ` Eric W. Biederman
2010-04-04 8:44 ` Joerg Roedel
2010-04-04 8:44 ` Joerg Roedel
2010-04-04 9:16 ` Eric W. Biederman
2010-04-04 9:16 ` Eric W. Biederman
2010-04-04 9:19 ` Eric W. Biederman
2010-04-04 9:19 ` Eric W. Biederman
2010-04-03 17:41 ` Joerg Roedel
2010-04-03 17:41 ` Joerg Roedel
2010-04-03 17:49 ` Eric W. Biederman
2010-04-03 17:49 ` Eric W. Biederman
2010-04-03 19:13 ` Joerg Roedel
2010-04-03 19:13 ` Joerg Roedel
2010-04-03 19:41 ` Eric W. Biederman
2010-04-03 19:41 ` Eric W. Biederman
2010-04-04 7:24 ` Bernhard Walle [this message]
2010-04-04 7:24 ` Bernhard Walle
2010-04-04 7:51 ` Eric W. Biederman
2010-04-04 7:51 ` Eric W. Biederman
2010-04-04 8:53 ` Joerg Roedel
2010-04-04 8:53 ` Joerg Roedel
2010-04-04 9:44 ` Eric W. Biederman
2010-04-04 9:44 ` Eric W. Biederman
2010-04-04 10:01 ` Joerg Roedel
2010-04-04 10:01 ` Joerg Roedel
2010-04-06 17:42 ` Chris Wright
2010-04-06 17:42 ` Chris Wright
2010-04-06 17:51 ` Joerg Roedel
2010-04-06 17:51 ` Joerg Roedel
2010-04-06 20:39 ` Vivek Goyal
2010-04-06 20:39 ` Vivek Goyal
2010-04-06 21:13 ` Vivek Goyal
2010-04-06 21:13 ` Vivek Goyal
2010-04-06 21:45 ` Yinghai Lu
2010-04-06 21:45 ` Yinghai Lu
2010-04-06 22:10 ` Eric W. Biederman
2010-04-06 22:10 ` Eric W. Biederman
2010-04-04 11:54 ` David Woodhouse
2010-04-04 11:54 ` David Woodhouse
2010-04-03 1:27 ` [PATCH 4/4] x86/amd-iommu: use for_each_pci_dev Chris Wright
2010-04-03 1:27 ` Chris Wright
2010-04-07 10:05 ` [PATCH 0/4] AMD IOMMU kdump fix plus cleanups (v2) Joerg Roedel
2010-04-07 10:05 ` Joerg Roedel
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