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From: Jerry Snitselaar <jsnitsel@redhat.com>
To: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
	Joerg Roedel <joro@8bytes.org>,
	Adrian Huang <adrianhuang0701@gmail.com>,
	Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Subject: kdump boot failing with IVRS checksum failure
Date: Mon, 21 Sep 2020 11:56:42 -0700	[thread overview]
Message-ID: <87o8lzvtzp.fsf@redhat.com> (raw)


Hello Joerg,

We are seeing a kdump kernel boot failure in test on an HP DL325 Gen10
and it was tracked down to 387caf0b759a ("iommu/amd: Treat per-device
exclusion ranges as r/w unity-mapped regions"). Reproduced on 5.9-rc5
and goes away with revert of the commit. There is a follow on commit
that depends on this that was reverted as well 2ca6b6dc8512 ("iommu/amd:
Remove unused variable"). I'm working on getting system access and want
to see what the IVRS table looks like, but thought I'd give you heads
up.

Regards,
Jerry

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WARNING: multiple messages have this Message-ID (diff)
From: Jerry Snitselaar <jsnitsel@redhat.com>
To: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
	Joerg Roedel <joro@8bytes.org>,
	Adrian Huang <adrianhuang0701@gmail.com>,
	Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Subject: kdump boot failing with IVRS checksum failure
Date: Mon, 21 Sep 2020 11:56:42 -0700	[thread overview]
Message-ID: <87o8lzvtzp.fsf@redhat.com> (raw)


Hello Joerg,

We are seeing a kdump kernel boot failure in test on an HP DL325 Gen10
and it was tracked down to 387caf0b759a ("iommu/amd: Treat per-device
exclusion ranges as r/w unity-mapped regions"). Reproduced on 5.9-rc5
and goes away with revert of the commit. There is a follow on commit
that depends on this that was reverted as well 2ca6b6dc8512 ("iommu/amd:
Remove unused variable"). I'm working on getting system access and want
to see what the IVRS table looks like, but thought I'd give you heads
up.

Regards,
Jerry


             reply	other threads:[~2020-09-21 18:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-21 18:56 Jerry Snitselaar [this message]
2020-09-21 18:56 ` kdump boot failing with IVRS checksum failure Jerry Snitselaar
2020-09-24  9:23 ` Joerg Roedel
2020-09-24  9:23   ` Joerg Roedel

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