linux-kernel - [lkp] [iommu/vt] 571dbbd4d04: DMAR-IR: Failed to copy IR table for dmar1 from previous kernel

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Date:	Thu, 02 Jul 2015 13:14:18 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	Joerg Roedel <jroedel@...e.de>
Cc:	LKML <linux-kernel@...r.kernel.org>, LKP ML <lkp@...org>
Subject: [lkp] [iommu/vt] 571dbbd4d04: DMAR-IR: Failed to copy IR table for
 dmar1 from previous kernel

FYI, we noticed the below changes on

git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 571dbbd4d044e11c78bc077acb3ccef4c77b096e ("iommu/vt-d: Don't disable IR when it was previously enabled")

The following new message in kernel log may make end user confusing.

[    0.503764] DMAR-IR: IRQ remapping was enabled on dmar0 but we are not in kdump mode
[    0.512418] DMAR-IR: Failed to copy IR table for dmar0 from previous kernel
[    0.520501] DMAR-IR: IRQ remapping was enabled on dmar1 but we are not in kdump mode
[    0.529154] DMAR-IR: Failed to copy IR table for dmar1 from previous kernel
[    0.537077] DMAR-IR: Enabled IRQ remapping in x2apic mode


Thanks,
Ying Huang

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