linux-kernel - Re: "iommu/amd: Set exclusion range correctly" causes smartpqi offline

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Message-ID: <61d3a8d6-48b0-0ec4-82e0-10c67ad9dcd7@lca.pw>
Date:   Tue, 30 Apr 2019 21:41:56 -0400
From:   Qian Cai <cai@....pw>
To:     Joerg Roedel <jroedel@...e.de>
Cc:     iommu@...ts.linux-foundation.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: "iommu/amd: Set exclusion range correctly" causes smartpqi
 offline



On 4/29/19 10:23 AM, Joerg Roedel wrote:
> On Fri, Apr 26, 2019 at 11:55:12AM -0400, Qian Cai wrote:
>> https://git.sr.ht/~cai/linux-debug/blob/master/dmesg
> 
> Thanks, I can't see any definitions for unity ranges or exclusion ranges
> in the IVRS table dump, which makes it even more weird.
> 
> Can you please send me the output of
> 
> 	for f in `ls -1 /sys/kernel/iommu_groups/*/reserved_regions`; do echo "---$f"; cat $f;done
> 
> to double-check?

It is going to take a while to reserve that system again to gather the
information. BTW, this is only reproducible on linux-next but not mainline.