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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Olivier Matz <olivier.matz@6wind.com>
Cc: dev@dpdk.org, sergio.gonzalez.monroy@intel.com,
	david.marchand@6wind.com, pmatilai@redhat.com
Subject: Re: [dpdk-dev] [PATCH v2] mem: revert page locking when not using hugepages
Date: Thu, 30 Jun 2016 19:17:12 +0200	[thread overview]
Message-ID: <2064760.ObAVrGWHUJ@xps13> (raw)
In-Reply-To: <1467043131-24658-1-git-send-email-olivier.matz@6wind.com>

2016-06-27 17:58, Olivier Matz:
> This reverts commit 593a084afc2b441895aeca78a2c4465e450d0ef5.
> 
> Since recently [1], it is not possible to run the dpdk with
> non-root privileges and the --no-huge option. This is because the eal
> layer tries to lock the memory. Using locked memory is mandatory for
> physical devices because they reference physical addresses.
> 
> But a user may want to start the dpdk without locked memory, because he
> does not have the permission to do so, and/or does not have this need,
> for instance because he uses virtual drivers.
> 
> So this commit reverts the use of MAP_LOCKED in mmap() flags.
> 
> [1] http://www.dpdk.org/ml/archives/dev/2016-May/039404.html
> 
> Fixes: 593a084afc2b ("mem: lock pages when not using hugepages")
> Reported-by: Panu Matilainen <pmatilai@redhat.com>
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>

Applied, thanks

Let's keep in mind to make things working with --no-huge.

      reply	other threads:[~2016-06-30 17:19 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-13 10:26 [dpdk-dev] [PATCH] mem: skip memory locking on failure Olivier Matz
2016-06-14 13:21 ` Panu Matilainen
2016-06-14 14:12   ` Olivier MATZ
2016-06-21 11:58     ` Panu Matilainen
2016-06-27 15:58 ` [dpdk-dev] [PATCH v2] mem: revert page locking when not using hugepages Olivier Matz
2016-06-30 17:17   ` Thomas Monjalon [this message]

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