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Message-ID: <40a7581d-985b-f12b-0bb2-99c586a9f968@molgen.mpg.de>
Date: Fri, 19 Nov 2021 14:58:42 +0100
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: David Woodhouse <dwmw2@...radead.org>,
Lu Baolu <baolu.lu@...ux.intel.com>,
Jörg Rödel <joro@...tes.org>,
Will Deacon <will@...nel.org>
Cc: iommu@...ts.linux-foundation.org,
LKML <linux-kernel@...r.kernel.org>, it+linux-iommu@...gen.mpg.de
Subject: kexec causes `DMAR-IR: IRQ remapping was enabled on dmar6 but we are
not in kdump mode`
Dear Linux folks,
Kexec’ing Linux 5.10.70 on a Dell PowerEdge T440/021KCD, BIOS 2.11.2
04/22/2021, Linux warns about:
```
[ 2.103867] DMAR-IR: IRQ remapping was enabled on dmar6 but we are
not in kdump mode
[ 2.111764] DMAR-IR: IRQ remapping was enabled on dmar5 but we are
not in kdump mode
[ 2.119656] DMAR-IR: IRQ remapping was enabled on dmar4 but we are
not in kdump mode
[ 2.127555] DMAR-IR: IRQ remapping was enabled on dmar3 but we are
not in kdump mode
[ 2.135455] DMAR-IR: IRQ remapping was enabled on dmar2 but we are
not in kdump mode
[ 2.143351] DMAR-IR: IRQ remapping was enabled on dmar1 but we are
not in kdump mode
[ 2.151247] DMAR-IR: IRQ remapping was enabled on dmar0 but we are
not in kdump mode
[ 2.159162] DMAR-IR: IRQ remapping was enabled on dmar7 but we are
not in kdump mode
```
Please find the logs attached.
Can these warnings be fixed in the Linux kernel?
Kind regards,
Paul
View attachment "furoncles-linux-5.10.70-dmesg-initcall_debug-kexec.txt" of type "text/plain" (133077 bytes)
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