From: Florian Dazinger <florian-Q0TRQrZM+Zzk1uMJSBkQmQ@public.gmane.org>
To: Alex Williamson
<alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [RFC PATCH 0/5] amd_iommu: Refactor IOMMU group and support virtual aliases
Date: Tue, 9 Oct 2012 20:57:58 +0200 [thread overview]
Message-ID: <20121009205758.45c9fcc0@brain.lan> (raw)
In-Reply-To: <1349807739.2759.292.camel-85EaTFmN5p//9pzu0YdTqQ@public.gmane.org>
Am Tue, 09 Oct 2012 12:35:39 -0600
schrieb Alex Williamson <alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>:
> On Tue, 2012-10-09 at 20:27 +0200, Florian Dazinger wrote:
> > Am Mon, 08 Oct 2012 22:49:28 -0600
> > schrieb Alex Williamson <alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>:
> >
> > > This series is meant to refactor IOMMU group support in amd_iommu
> > > to properly support virtual aliases. If multiple devices alias to
> > > the same virtual alias, they should be grouped together. This code
> > > also verifies whether the alias should be the root of the group vs
> > > devices above the alias.
> > >
> > > This seems to do the right thing on my system, but that's not saying
> > > a lot since it doesn't do anything interesting with aliases. I'd
> > > appreciate if Joerg and Florian could test this on their systems.
> > > Thanks,
> > >
> > > Alex
> > >
> > > ---
> > >
> > > Alex Williamson (5):
> > > amd_iommu: Properly account for virtual aliases in IOMMU groups
> > > amd_iommu: Split IOMMU group allocation and attach
> > > amd_iommu: Split upstream bus device lookup
> > > amd_iommu: Split IOMMU Group topology walk
> > > amd_iommu: Split IOMMU group initialization
> > >
> > >
> > > drivers/iommu/amd_iommu.c | 184 ++++++++++++++++++++++++++++++---------
> > > drivers/iommu/amd_iommu_types.h | 1
> > > 2 files changed, 142 insertions(+), 43 deletions(-)
> > >
> >
> > patch #5 does not apply cleanly on top of 3.6, I had to edit
> > amd_iommu_types.h manually (easy enough), apart from that, it is
> > working fine!
>
> Thanks Florian. Would you mind also reporting
> 'find /sys/kernel/iommu_groups' for both stock 3.6 and with this series
> applied? I think we want to find that devices 07:00.0 and 08:04.0 are
> grouped together and I'd like to verify whether that actually works.
> Thanks,
>
> Alex
shure... there does not seem to be much difference?
with stock 3.6:
/sys/kernel/iommu_groups
/sys/kernel/iommu_groups/0
/sys/kernel/iommu_groups/0/devices
/sys/kernel/iommu_groups/0/devices/0000:00:00.0
/sys/kernel/iommu_groups/0/devices/0000:00:00.2
/sys/kernel/iommu_groups/1
/sys/kernel/iommu_groups/1/devices
/sys/kernel/iommu_groups/1/devices/0000:00:02.0
/sys/kernel/iommu_groups/2
/sys/kernel/iommu_groups/2/devices
/sys/kernel/iommu_groups/2/devices/0000:00:04.0
/sys/kernel/iommu_groups/3
/sys/kernel/iommu_groups/3/devices
/sys/kernel/iommu_groups/3/devices/0000:00:05.0
/sys/kernel/iommu_groups/4
/sys/kernel/iommu_groups/4/devices
/sys/kernel/iommu_groups/4/devices/0000:00:06.0
/sys/kernel/iommu_groups/5
/sys/kernel/iommu_groups/5/devices
/sys/kernel/iommu_groups/5/devices/0000:00:07.0
/sys/kernel/iommu_groups/6
/sys/kernel/iommu_groups/6/devices
/sys/kernel/iommu_groups/6/devices/0000:00:09.0
/sys/kernel/iommu_groups/7
/sys/kernel/iommu_groups/7/devices
/sys/kernel/iommu_groups/7/devices/0000:00:0d.0
/sys/kernel/iommu_groups/8
/sys/kernel/iommu_groups/8/devices
/sys/kernel/iommu_groups/8/devices/0000:00:11.0
/sys/kernel/iommu_groups/9
/sys/kernel/iommu_groups/9/devices
/sys/kernel/iommu_groups/9/devices/0000:00:12.0
/sys/kernel/iommu_groups/9/devices/0000:00:12.2
/sys/kernel/iommu_groups/10
/sys/kernel/iommu_groups/10/devices
/sys/kernel/iommu_groups/10/devices/0000:00:13.0
/sys/kernel/iommu_groups/10/devices/0000:00:13.2
/sys/kernel/iommu_groups/11
/sys/kernel/iommu_groups/11/devices
/sys/kernel/iommu_groups/11/devices/0000:00:14.0
/sys/kernel/iommu_groups/11/devices/0000:00:14.3
/sys/kernel/iommu_groups/11/devices/0000:00:14.4
/sys/kernel/iommu_groups/11/devices/0000:00:14.5
/sys/kernel/iommu_groups/12
/sys/kernel/iommu_groups/12/devices
/sys/kernel/iommu_groups/12/devices/0000:00:16.0
/sys/kernel/iommu_groups/12/devices/0000:00:16.2
/sys/kernel/iommu_groups/13
/sys/kernel/iommu_groups/13/devices
/sys/kernel/iommu_groups/13/devices/0000:01:00.0
/sys/kernel/iommu_groups/13/devices/0000:01:00.1
/sys/kernel/iommu_groups/14
/sys/kernel/iommu_groups/14/devices
/sys/kernel/iommu_groups/14/devices/0000:02:00.0
/sys/kernel/iommu_groups/15
/sys/kernel/iommu_groups/15/devices
/sys/kernel/iommu_groups/15/devices/0000:03:00.0
/sys/kernel/iommu_groups/16
/sys/kernel/iommu_groups/16/devices
/sys/kernel/iommu_groups/16/devices/0000:04:00.0
/sys/kernel/iommu_groups/17
/sys/kernel/iommu_groups/17/devices
/sys/kernel/iommu_groups/17/devices/0000:05:00.0
/sys/kernel/iommu_groups/18
/sys/kernel/iommu_groups/18/devices
/sys/kernel/iommu_groups/18/devices/0000:06:00.0
/sys/kernel/iommu_groups/19
/sys/kernel/iommu_groups/19/devices
/sys/kernel/iommu_groups/19/devices/0000:07:00.0
/sys/kernel/iommu_groups/20
/sys/kernel/iommu_groups/20/devices
/sys/kernel/iommu_groups/20/devices/0000:08:04.0
3.6 + your patch-series:
3.6 with your patch-series:
/sys/kernel/iommu_groups
/sys/kernel/iommu_groups/0
/sys/kernel/iommu_groups/0/devices
/sys/kernel/iommu_groups/0/devices/0000:00:00.0
/sys/kernel/iommu_groups/0/devices/0000:00:00.2
/sys/kernel/iommu_groups/1
/sys/kernel/iommu_groups/1/devices
/sys/kernel/iommu_groups/1/devices/0000:00:02.0
/sys/kernel/iommu_groups/2
/sys/kernel/iommu_groups/2/devices
/sys/kernel/iommu_groups/2/devices/0000:00:04.0
/sys/kernel/iommu_groups/3
/sys/kernel/iommu_groups/3/devices
/sys/kernel/iommu_groups/3/devices/0000:00:05.0
/sys/kernel/iommu_groups/4
/sys/kernel/iommu_groups/4/devices
/sys/kernel/iommu_groups/4/devices/0000:00:06.0
/sys/kernel/iommu_groups/5
/sys/kernel/iommu_groups/5/devices
/sys/kernel/iommu_groups/5/devices/0000:00:07.0
/sys/kernel/iommu_groups/6
/sys/kernel/iommu_groups/6/devices
/sys/kernel/iommu_groups/6/devices/0000:00:09.0
/sys/kernel/iommu_groups/7
/sys/kernel/iommu_groups/7/devices
/sys/kernel/iommu_groups/7/devices/0000:00:0d.0
/sys/kernel/iommu_groups/8
/sys/kernel/iommu_groups/8/devices
/sys/kernel/iommu_groups/8/devices/0000:00:11.0
/sys/kernel/iommu_groups/9
/sys/kernel/iommu_groups/9/devices
/sys/kernel/iommu_groups/9/devices/0000:00:12.0
/sys/kernel/iommu_groups/9/devices/0000:00:12.2
/sys/kernel/iommu_groups/10
/sys/kernel/iommu_groups/10/devices
/sys/kernel/iommu_groups/10/devices/0000:00:13.0
/sys/kernel/iommu_groups/10/devices/0000:00:13.2
/sys/kernel/iommu_groups/11
/sys/kernel/iommu_groups/11/devices
/sys/kernel/iommu_groups/11/devices/0000:00:14.0
/sys/kernel/iommu_groups/11/devices/0000:00:14.3
/sys/kernel/iommu_groups/11/devices/0000:00:14.4
/sys/kernel/iommu_groups/11/devices/0000:00:14.5
/sys/kernel/iommu_groups/12
/sys/kernel/iommu_groups/12/devices
/sys/kernel/iommu_groups/12/devices/0000:00:16.0
/sys/kernel/iommu_groups/12/devices/0000:00:16.2
/sys/kernel/iommu_groups/13
/sys/kernel/iommu_groups/13/devices
/sys/kernel/iommu_groups/13/devices/0000:01:00.0
/sys/kernel/iommu_groups/13/devices/0000:01:00.1
/sys/kernel/iommu_groups/14
/sys/kernel/iommu_groups/14/devices
/sys/kernel/iommu_groups/14/devices/0000:02:00.0
/sys/kernel/iommu_groups/15
/sys/kernel/iommu_groups/15/devices
/sys/kernel/iommu_groups/15/devices/0000:03:00.0
/sys/kernel/iommu_groups/16
/sys/kernel/iommu_groups/16/devices
/sys/kernel/iommu_groups/16/devices/0000:04:00.0
/sys/kernel/iommu_groups/17
/sys/kernel/iommu_groups/17/devices
/sys/kernel/iommu_groups/17/devices/0000:05:00.0
/sys/kernel/iommu_groups/18
/sys/kernel/iommu_groups/18/devices
/sys/kernel/iommu_groups/18/devices/0000:06:00.0
/sys/kernel/iommu_groups/19
/sys/kernel/iommu_groups/19/devices
/sys/kernel/iommu_groups/19/devices/0000:07:00.0
/sys/kernel/iommu_groups/20
/sys/kernel/iommu_groups/20/devices
/sys/kernel/iommu_groups/20/devices/0000:08:04.0
WARNING: multiple messages have this Message-ID (diff)
From: Florian Dazinger <florian@dazinger.net>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: Joerg.Roedel@amd.com, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 0/5] amd_iommu: Refactor IOMMU group and support virtual aliases
Date: Tue, 9 Oct 2012 20:57:58 +0200 [thread overview]
Message-ID: <20121009205758.45c9fcc0@brain.lan> (raw)
In-Reply-To: <1349807739.2759.292.camel@ul30vt.home>
Am Tue, 09 Oct 2012 12:35:39 -0600
schrieb Alex Williamson <alex.williamson@redhat.com>:
> On Tue, 2012-10-09 at 20:27 +0200, Florian Dazinger wrote:
> > Am Mon, 08 Oct 2012 22:49:28 -0600
> > schrieb Alex Williamson <alex.williamson@redhat.com>:
> >
> > > This series is meant to refactor IOMMU group support in amd_iommu
> > > to properly support virtual aliases. If multiple devices alias to
> > > the same virtual alias, they should be grouped together. This code
> > > also verifies whether the alias should be the root of the group vs
> > > devices above the alias.
> > >
> > > This seems to do the right thing on my system, but that's not saying
> > > a lot since it doesn't do anything interesting with aliases. I'd
> > > appreciate if Joerg and Florian could test this on their systems.
> > > Thanks,
> > >
> > > Alex
> > >
> > > ---
> > >
> > > Alex Williamson (5):
> > > amd_iommu: Properly account for virtual aliases in IOMMU groups
> > > amd_iommu: Split IOMMU group allocation and attach
> > > amd_iommu: Split upstream bus device lookup
> > > amd_iommu: Split IOMMU Group topology walk
> > > amd_iommu: Split IOMMU group initialization
> > >
> > >
> > > drivers/iommu/amd_iommu.c | 184 ++++++++++++++++++++++++++++++---------
> > > drivers/iommu/amd_iommu_types.h | 1
> > > 2 files changed, 142 insertions(+), 43 deletions(-)
> > >
> >
> > patch #5 does not apply cleanly on top of 3.6, I had to edit
> > amd_iommu_types.h manually (easy enough), apart from that, it is
> > working fine!
>
> Thanks Florian. Would you mind also reporting
> 'find /sys/kernel/iommu_groups' for both stock 3.6 and with this series
> applied? I think we want to find that devices 07:00.0 and 08:04.0 are
> grouped together and I'd like to verify whether that actually works.
> Thanks,
>
> Alex
shure... there does not seem to be much difference?
with stock 3.6:
/sys/kernel/iommu_groups
/sys/kernel/iommu_groups/0
/sys/kernel/iommu_groups/0/devices
/sys/kernel/iommu_groups/0/devices/0000:00:00.0
/sys/kernel/iommu_groups/0/devices/0000:00:00.2
/sys/kernel/iommu_groups/1
/sys/kernel/iommu_groups/1/devices
/sys/kernel/iommu_groups/1/devices/0000:00:02.0
/sys/kernel/iommu_groups/2
/sys/kernel/iommu_groups/2/devices
/sys/kernel/iommu_groups/2/devices/0000:00:04.0
/sys/kernel/iommu_groups/3
/sys/kernel/iommu_groups/3/devices
/sys/kernel/iommu_groups/3/devices/0000:00:05.0
/sys/kernel/iommu_groups/4
/sys/kernel/iommu_groups/4/devices
/sys/kernel/iommu_groups/4/devices/0000:00:06.0
/sys/kernel/iommu_groups/5
/sys/kernel/iommu_groups/5/devices
/sys/kernel/iommu_groups/5/devices/0000:00:07.0
/sys/kernel/iommu_groups/6
/sys/kernel/iommu_groups/6/devices
/sys/kernel/iommu_groups/6/devices/0000:00:09.0
/sys/kernel/iommu_groups/7
/sys/kernel/iommu_groups/7/devices
/sys/kernel/iommu_groups/7/devices/0000:00:0d.0
/sys/kernel/iommu_groups/8
/sys/kernel/iommu_groups/8/devices
/sys/kernel/iommu_groups/8/devices/0000:00:11.0
/sys/kernel/iommu_groups/9
/sys/kernel/iommu_groups/9/devices
/sys/kernel/iommu_groups/9/devices/0000:00:12.0
/sys/kernel/iommu_groups/9/devices/0000:00:12.2
/sys/kernel/iommu_groups/10
/sys/kernel/iommu_groups/10/devices
/sys/kernel/iommu_groups/10/devices/0000:00:13.0
/sys/kernel/iommu_groups/10/devices/0000:00:13.2
/sys/kernel/iommu_groups/11
/sys/kernel/iommu_groups/11/devices
/sys/kernel/iommu_groups/11/devices/0000:00:14.0
/sys/kernel/iommu_groups/11/devices/0000:00:14.3
/sys/kernel/iommu_groups/11/devices/0000:00:14.4
/sys/kernel/iommu_groups/11/devices/0000:00:14.5
/sys/kernel/iommu_groups/12
/sys/kernel/iommu_groups/12/devices
/sys/kernel/iommu_groups/12/devices/0000:00:16.0
/sys/kernel/iommu_groups/12/devices/0000:00:16.2
/sys/kernel/iommu_groups/13
/sys/kernel/iommu_groups/13/devices
/sys/kernel/iommu_groups/13/devices/0000:01:00.0
/sys/kernel/iommu_groups/13/devices/0000:01:00.1
/sys/kernel/iommu_groups/14
/sys/kernel/iommu_groups/14/devices
/sys/kernel/iommu_groups/14/devices/0000:02:00.0
/sys/kernel/iommu_groups/15
/sys/kernel/iommu_groups/15/devices
/sys/kernel/iommu_groups/15/devices/0000:03:00.0
/sys/kernel/iommu_groups/16
/sys/kernel/iommu_groups/16/devices
/sys/kernel/iommu_groups/16/devices/0000:04:00.0
/sys/kernel/iommu_groups/17
/sys/kernel/iommu_groups/17/devices
/sys/kernel/iommu_groups/17/devices/0000:05:00.0
/sys/kernel/iommu_groups/18
/sys/kernel/iommu_groups/18/devices
/sys/kernel/iommu_groups/18/devices/0000:06:00.0
/sys/kernel/iommu_groups/19
/sys/kernel/iommu_groups/19/devices
/sys/kernel/iommu_groups/19/devices/0000:07:00.0
/sys/kernel/iommu_groups/20
/sys/kernel/iommu_groups/20/devices
/sys/kernel/iommu_groups/20/devices/0000:08:04.0
3.6 + your patch-series:
3.6 with your patch-series:
/sys/kernel/iommu_groups
/sys/kernel/iommu_groups/0
/sys/kernel/iommu_groups/0/devices
/sys/kernel/iommu_groups/0/devices/0000:00:00.0
/sys/kernel/iommu_groups/0/devices/0000:00:00.2
/sys/kernel/iommu_groups/1
/sys/kernel/iommu_groups/1/devices
/sys/kernel/iommu_groups/1/devices/0000:00:02.0
/sys/kernel/iommu_groups/2
/sys/kernel/iommu_groups/2/devices
/sys/kernel/iommu_groups/2/devices/0000:00:04.0
/sys/kernel/iommu_groups/3
/sys/kernel/iommu_groups/3/devices
/sys/kernel/iommu_groups/3/devices/0000:00:05.0
/sys/kernel/iommu_groups/4
/sys/kernel/iommu_groups/4/devices
/sys/kernel/iommu_groups/4/devices/0000:00:06.0
/sys/kernel/iommu_groups/5
/sys/kernel/iommu_groups/5/devices
/sys/kernel/iommu_groups/5/devices/0000:00:07.0
/sys/kernel/iommu_groups/6
/sys/kernel/iommu_groups/6/devices
/sys/kernel/iommu_groups/6/devices/0000:00:09.0
/sys/kernel/iommu_groups/7
/sys/kernel/iommu_groups/7/devices
/sys/kernel/iommu_groups/7/devices/0000:00:0d.0
/sys/kernel/iommu_groups/8
/sys/kernel/iommu_groups/8/devices
/sys/kernel/iommu_groups/8/devices/0000:00:11.0
/sys/kernel/iommu_groups/9
/sys/kernel/iommu_groups/9/devices
/sys/kernel/iommu_groups/9/devices/0000:00:12.0
/sys/kernel/iommu_groups/9/devices/0000:00:12.2
/sys/kernel/iommu_groups/10
/sys/kernel/iommu_groups/10/devices
/sys/kernel/iommu_groups/10/devices/0000:00:13.0
/sys/kernel/iommu_groups/10/devices/0000:00:13.2
/sys/kernel/iommu_groups/11
/sys/kernel/iommu_groups/11/devices
/sys/kernel/iommu_groups/11/devices/0000:00:14.0
/sys/kernel/iommu_groups/11/devices/0000:00:14.3
/sys/kernel/iommu_groups/11/devices/0000:00:14.4
/sys/kernel/iommu_groups/11/devices/0000:00:14.5
/sys/kernel/iommu_groups/12
/sys/kernel/iommu_groups/12/devices
/sys/kernel/iommu_groups/12/devices/0000:00:16.0
/sys/kernel/iommu_groups/12/devices/0000:00:16.2
/sys/kernel/iommu_groups/13
/sys/kernel/iommu_groups/13/devices
/sys/kernel/iommu_groups/13/devices/0000:01:00.0
/sys/kernel/iommu_groups/13/devices/0000:01:00.1
/sys/kernel/iommu_groups/14
/sys/kernel/iommu_groups/14/devices
/sys/kernel/iommu_groups/14/devices/0000:02:00.0
/sys/kernel/iommu_groups/15
/sys/kernel/iommu_groups/15/devices
/sys/kernel/iommu_groups/15/devices/0000:03:00.0
/sys/kernel/iommu_groups/16
/sys/kernel/iommu_groups/16/devices
/sys/kernel/iommu_groups/16/devices/0000:04:00.0
/sys/kernel/iommu_groups/17
/sys/kernel/iommu_groups/17/devices
/sys/kernel/iommu_groups/17/devices/0000:05:00.0
/sys/kernel/iommu_groups/18
/sys/kernel/iommu_groups/18/devices
/sys/kernel/iommu_groups/18/devices/0000:06:00.0
/sys/kernel/iommu_groups/19
/sys/kernel/iommu_groups/19/devices
/sys/kernel/iommu_groups/19/devices/0000:07:00.0
/sys/kernel/iommu_groups/20
/sys/kernel/iommu_groups/20/devices
/sys/kernel/iommu_groups/20/devices/0000:08:04.0
next prev parent reply other threads:[~2012-10-09 18:57 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-09 4:49 [RFC PATCH 0/5] amd_iommu: Refactor IOMMU group and support virtual aliases Alex Williamson
2012-10-09 4:49 ` Alex Williamson
[not found] ` <20121009044057.16302.44577.stgit-xdHQ/5r00wBBDLzU/O5InQ@public.gmane.org>
2012-10-09 4:49 ` [RFC PATCH 1/5] amd_iommu: Split IOMMU group initialization Alex Williamson
2012-10-09 4:49 ` Alex Williamson
[not found] ` <20121009044935.16302.93049.stgit-xdHQ/5r00wBBDLzU/O5InQ@public.gmane.org>
2012-10-09 14:33 ` Shuah Khan
2012-10-09 14:33 ` Shuah Khan
[not found] ` <CAKocOOOTp7BMbqFyZx=rH-2uOC51C17JTjP77w7=7KB8jKh=hA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-10-09 14:41 ` Alex Williamson
2012-10-09 14:41 ` Alex Williamson
2012-10-09 4:49 ` [RFC PATCH 2/5] amd_iommu: Split IOMMU Group topology walk Alex Williamson
2012-10-09 4:49 ` Alex Williamson
2012-10-09 4:49 ` [RFC PATCH 3/5] amd_iommu: Split upstream bus device lookup Alex Williamson
2012-10-09 4:49 ` Alex Williamson
2012-10-09 4:49 ` [RFC PATCH 4/5] amd_iommu: Split IOMMU group allocation and attach Alex Williamson
2012-10-09 4:49 ` Alex Williamson
2012-10-09 4:50 ` [RFC PATCH 5/5] amd_iommu: Properly account for virtual aliases in IOMMU groups Alex Williamson
2012-10-09 4:50 ` Alex Williamson
2012-10-09 18:27 ` [RFC PATCH 0/5] amd_iommu: Refactor IOMMU group and support virtual aliases Florian Dazinger
2012-10-09 18:27 ` Florian Dazinger
[not found] ` <20121009202738.7e047e64-mGxavARqDwv/PtFMR13I2A@public.gmane.org>
2012-10-09 18:35 ` Alex Williamson
2012-10-09 18:35 ` Alex Williamson
[not found] ` <1349807739.2759.292.camel-85EaTFmN5p//9pzu0YdTqQ@public.gmane.org>
2012-10-09 18:57 ` Florian Dazinger [this message]
2012-10-09 18:57 ` Florian Dazinger
[not found] ` <20121009205758.45c9fcc0-mGxavARqDwv/PtFMR13I2A@public.gmane.org>
2012-10-09 19:33 ` Alex Williamson
2012-10-09 19:33 ` Alex Williamson
2012-10-18 21:29 ` Alex Williamson
2012-10-18 21:29 ` Alex Williamson
[not found] ` <1350595750.2112.438.camel-xdHQ/5r00wBBDLzU/O5InQ@public.gmane.org>
2012-10-24 15:28 ` Joerg Roedel
2012-10-24 15:28 ` Joerg Roedel
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