X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Flinux_gsg%2Fsys_reqs.rst;h=d2359058bf6bd98ac6b01ea1ca2f8532c50fa703;hb=a6a752402dfce8695c258a27da97d5a6d187c49b;hp=29c5f47a5737d08cc0b8adc13b528c73f0b71e8e;hpb=ee57170c4acb7b477091948caa8ea9e887222867;p=dpdk.git

diff --git a/doc/guides/linux_gsg/sys_reqs.rst b/doc/guides/linux_gsg/sys_reqs.rst
index 29c5f47a57..d2359058bf 100644
--- a/doc/guides/linux_gsg/sys_reqs.rst
+++ b/doc/guides/linux_gsg/sys_reqs.rst
@@ -70,8 +70,22 @@ Compilation of the DPDK
 
     * libnuma-dev in Debian/Ubuntu;
 
+    .. note::
+
+        On systems with NUMA support, `libnuma-dev` (aka `numactl-devel`)
+        is a recommended dependency when `--legacy-mem` switch is used,
+        and a *required* dependency if default memory mode is used.
+        While DPDK will compile and run without `libnuma`
+        even on NUMA-enabled systems,
+        both usability and performance will be degraded.
+
 *   Python, version 2.7+ or 3.2+, to use various helper scripts included in the DPDK package.
 
+.. note::
+
+   Please ensure that the latest patches are applied to third party libraries
+   and software to avoid any known vulnerabilities.
+
 
 **Optional Tools:**
 
@@ -98,22 +112,16 @@ System Software
 
 **Required:**
 
-*   Kernel version >= 3.2
+*   Kernel version >= 3.16
 
     The kernel version required is based on the oldest long term stable kernel available
     at kernel.org when the DPDK version is in development.
+    Compatibility for recent distribution kernels will be kept, notably RHEL/CentOS 7.
 
     The kernel version in use can be checked using the command::
 
         uname -r
 
-.. note::
-
-    Kernel version 3.2 is no longer a kernel.org longterm stable kernel.
-    For DPDK 19.02 the minimum required kernel will be updated to
-    the current kernel.org oldest longterm stable supported kernel 3.16,
-    or recent versions of common distributions, notably RHEL/CentOS 7.
-
 *   glibc >= 2.7 (for features related to cpuset)
 
     The version can be checked using the ``ldd --version`` command.
@@ -175,7 +183,7 @@ In the case of a dual-socket NUMA system,
 the number of hugepages reserved at boot time is generally divided equally between the two sockets
 (on the assumption that sufficient memory is present on both sockets).
 
-See the Documentation/kernel-parameters.txt file in your Linux source tree for further details of these and other kernel options.
+See the Documentation/admin-guide/kernel-parameters.txt file in your Linux source tree for further details of these and other kernel options.
 
 **Alternative:**