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From: Stojaczyk, Dariusz <dariusz.stojaczyk at intel.com>
Subject: [SPDK] Re: vfio multiple processes
Date: Mon, 03 Feb 2020 09:14:08 +0000
Message-ID: <242b9a2af0a343e891cb34dbce584577@intel.com>
In-Reply-To: 8351b92bd15245708d33044ebde63fa0@intel.com
List-ID: <spdk@lists.01.org>
To: spdk@lists.01.org

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TBH I'm not sure the whitelist should be required. Sounds like a bug, I'll =
take a look.

D.

> -----Original Message-----
> From: Nabarro, Tom <tom.nabarro(a)intel.com>
> Sent: Saturday, February 1, 2020 3:00 PM
> To: Storage Performance Development Kit <spdk(a)lists.01.org>
> Subject: [SPDK] Re: vfio multiple processes
> =

> Resolved by adding pci whitelist into spdk_env_opts.
> Adding whitelist into nvme.conf was not sufficient.
> =

> Regards,
> Tom Nabarro - DCG/ESAD
> M: +44 (0)7786 260986
> Skype: tom.nabarro
> =

> From: Nabarro, Tom
> Sent: Friday, January 31, 2020 12:42 PM
> To: 'Storage Performance Development Kit' <spdk(a)lists.01.org>
> Subject: vfio multiple processes
> =

> Can't run multiple SPDK processes each accessing disjoint set of NVMe dri=
ves
> using VFIO driver (even as root). Each process seems to try to access all
> /dev/vfio/* device files and get lots of resource busy messages. Sometimes
> one of the processes complaint it can't find the device it's been assigne=
d in
> nvme.conf.
> =

> Have any ideas?
> (processes are started in normal, non-multiprocess mode)
> =

> Thanks in advance
> =

> Best regards,
> Tom Nabarro BEng (hons)
> Extreme Storage Architecture & Development
> Intel Corporation
> E: tom.nabarro(a)intel.com<mailto:tom.nabarro(a)intel.com>
> M: +44 (0)7786 260986
> Skype: tom.nabarro
> =

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