linux-kernel - Re: [PATCH v3] iommu/s390: Add support for iommu

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Message-Id: <alpine.LFD.2.20.1708102104390.4919@schleppi>
Date:   Thu, 10 Aug 2017 21:07:06 +0200 (CEST)
From:   Sebastian Ott <sebott@...ux.vnet.ibm.com>
To:     Joerg Roedel <joro@...tes.org>
cc:     Gerald Schaefer <gerald.schaefer@...ibm.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Joerg Roedel <jroedel@...e.de>
Subject: Re: [PATCH v3] iommu/s390: Add support for iommu_device handling

On Wed, 9 Aug 2017, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@...e.de>
> 
> Add support for the iommu_device_register interface to make
> the s390 hardware iommus visible to the iommu core and in
> sysfs.
> 

With this patch pci hot-unplug fails with a use after free or refcounting
issue - I'm currently trying to understand what's going on...

Sebastian