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From: "jroedel@suse.de" <jroedel@suse.de>
To: "Merger, Edgar [AUTOSOL/MAS/AUGS]" <Edgar.Merger@emerson.com>
Cc: "iommu@lists.linux-foundation.org" <iommu@lists.linux-foundation.org>
Subject: Re: amdgpu error whenever IOMMU is enabled
Date: Wed, 4 Nov 2020 09:53:06 +0100	[thread overview]
Message-ID: <20201104085306.GQ22179@suse.de> (raw)
In-Reply-To: <MWHPR10MB1310CDB6829DDCF5EA84A14689150@MWHPR10MB1310.namprd10.prod.outlook.com>

Hi Edgar,

On Fri, Oct 30, 2020 at 02:26:23PM +0000, Merger, Edgar [AUTOSOL/MAS/AUGS] wrote:
> With one board we have a boot-problem that is reproducible at every ~50 boot.
> The system is accessible via ssh and works fine except for the Graphics. The
> graphics is off. We don´t see a screen. Please see attached “dmesg.log”. From
> [52.772273] onwards the kernel reports drm/amdgpu errors. It even tries to
> reset the GPU but that fails too. I tried to reset amdgpu also by command “sudo
> cat /sys/kernel/debug/dri/N/amdgpu_gpu_recover”. That did not help either.

Can you reproduce the problem with an upstream kernel too?

These messages in dmesg indicate some problem in the platform setup:

	AMD-Vi: Completion-Wait loop timed out

Might there be some inconsistencies in the PCI setup between the bridges
and the endpoints or something?

Regards,

	Joerg
_______________________________________________
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  parent reply	other threads:[~2020-11-04  8:53 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-30 14:26 amdgpu error whenever IOMMU is enabled Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-03  9:21 ` Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-04  8:53 ` jroedel [this message]
2020-11-04  9:21   ` [EXTERNAL] " Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-04 10:14     ` jroedel
2020-11-04 14:19       ` Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-04 14:35         ` Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-05 11:15           ` Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-05 11:58             ` Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-05 12:32               ` jroedel
2020-11-06  5:51                 ` Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-06 12:18                   ` jroedel
2020-11-06 13:03                     ` Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-06 14:06                       ` jroedel
2020-11-06 14:28                         ` Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-06 14:32                           ` jroedel
2020-11-09  5:33                             ` Merger, Edgar [AUTOSOL/MAS/AUGS]
2020-11-23  6:41                               ` Merger, Edgar [AUTOSOL/MAS/AUGS]
2021-01-15  8:18                                 ` jroedel
2021-01-15 13:15                                   ` Merger, Edgar [AUTOSOL/MAS/AUGS]

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