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

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Message-ID: <20170810212414.GE30515@8bytes.org>
Date:   Thu, 10 Aug 2017 23:24:14 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Sebastian Ott <sebott@...ux.vnet.ibm.com>
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

Hi Sebastian,

On Thu, Aug 10, 2017 at 09:07:06PM +0200, Sebastian Ott wrote:
> 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...

Thanks for testing and looking into the issue.

Regards,

	Joerg