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David Marchand 8a4baf06c1 mem: mark pages as not accessed when reserving VA
When the memory allocator reserves virtual addresses, it still does not
know what they will be used for.
Besides, huge areas are reserved for memory hotplug in multiprocess
setups. But most of the pages are unused in the whole life of the
processes.

Change protection mode to PROT_NONE when only reserving VA.
The memory allocator already switches to the right mode when making use
of it.

It also has the nice effect of getting those pages skipped by the kernel
when calling mlockall() or when a coredump gets generated.

Cc: stable@dpdk.org

Suggested-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Aaron Conole <aconole@redhat.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-03-13 13:53:12 +01:00
.ci ci: build and use libabigail 1.6 2020-02-18 21:36:30 +01:00
app app/pipeline: fix build with gcc 10 2020-03-04 10:19:02 +01:00
buildtools pmdinfogen: add SPDX license tag 2020-02-22 13:26:01 +01:00
config doc: fix naming of Mellanox devices 2020-02-25 15:55:54 +01:00
devtools devtools: add acronyms in dictionary for commit checks 2020-03-06 19:52:35 +01:00
doc version: 20.05-rc0 2020-02-27 12:02:19 +01:00
drivers drivers/crypto: fix build with make 4.3 2020-03-12 09:07:12 +01:00
examples examples/qos_sched: fix build with gcc 10 2020-03-04 10:25:20 +01:00
kernel kernel: remove unused directory for Windows 2020-02-21 17:54:56 +01:00
lib mem: mark pages as not accessed when reserving VA 2020-03-13 13:53:12 +01:00
license pmdinfogen: add SPDX license tag 2020-02-22 13:26:01 +01:00
mk build: fix experimental library versioning 2020-02-21 17:44:02 +01:00
usertools usertools: fix telemetry client with python 3 2020-02-16 22:23:20 +01:00
.editorconfig devtools: add EditorConfig file 2020-02-22 21:05:22 +01:00
.gitattributes
.gitignore doc: add vDPA features table 2020-01-14 00:09:33 +01:00
.travis.yml version: 20.05-rc0 2020-02-27 12:02:19 +01:00
ABI_VERSION version: 20.05-rc0 2020-02-27 12:02:19 +01:00
GNUmakefile
MAINTAINERS maintainers: update for Netcope PMDs 2020-03-02 19:02:40 +01:00
Makefile remove blank lines at end of file 2019-11-26 00:12:08 +01:00
meson_options.txt net/mlx: add static ibverbs linkage with meson 2020-02-14 12:42:13 +01:00
meson.build build: fix Windows build 2019-11-25 15:07:02 +01:00
README
VERSION version: 20.05-rc0 2020-02-27 12:02:19 +01:00

DPDK is a set of libraries and drivers for fast packet processing.
It supports many processor architectures and both FreeBSD and Linux.

The DPDK uses the Open Source BSD-3-Clause license for the core libraries
and drivers. The kernel components are GPL-2.0 licensed.

Please check the doc directory for release notes,
API documentation, and sample application information.

For questions and usage discussions, subscribe to: users@dpdk.org
Report bugs and issues to the development mailing list: dev@dpdk.org