doc: update minimum supported Linux kernel

The DPDK project is only committed to supporting upstream kernel
versions that are still in support. The 3.16 kernel has reached
End Of Life (in June 2020). The next LTS kernel is 4.4 and is
supported until February 2020.

This does not change the existing policy that distribution kernels
that are older are still supported.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Thomas Monjalon <thomas@monjalon.net>

diff --git a/doc/guides/linux_gsg/sys_reqs.rst b/doc/guides/linux_gsg/sys_reqs.rst
index 6994038..d95a78d 100644 (file)
--- a/doc/guides/linux_gsg/sys_reqs.rst
+++ b/doc/guides/linux_gsg/sys_reqs.rst
@@ -121,7 +121,7 @@ System Software
 
 **Required:**
 
-*   Kernel version >= 3.16
+*   Kernel version >= 4.4
 
     The kernel version required is based on the oldest long term stable kernel available
     at kernel.org when the DPDK version is in development.