[PATCH v4] doc/eal: add signal safety warning

[Stephen Hemminger]

On Mon, 11 Jul 2022 16:04:48 -0700
Stephen Hemminger <stephen at networkplumber.org> wrote:

> The DPDK is not designed to be used from a signal handler.
> Add a notice in the documentation describing this limitation,
> similar to Linux signal-safety manual page.
> 
> Bugzilla ID: 1030
> Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
> Acked-by: Tyler Retzlaff <roretzla at linux.microsoft.com>
> Acked-by: Chengwen Feng <fengchengwen at huawei.com>

There have been reports of this problem, multiple ack's of this patch
but it is still not merged.  It documents a real problem that will trap
users.