[dpdk-stable] patch 'app/testpmd: fix crash at mbuf pool creation' has been queued to LTS release 16.11.2

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to LTS release 16.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable
yet. It will be pushed if I get no objections before 05/07/17.
So please shout if anyone has objections.

Thanks.

	--yliu

---
>From 967fb4ff0171813a24e7bb642a41076828c581ac Mon Sep 17 00:00:00 2001
From: Olivier Matz <olivier.matz at 6wind.com>
Date: Mon, 24 Apr 2017 14:33:57 +0200
Subject: [PATCH] app/testpmd: fix crash at mbuf pool creation

[ upstream commit 3c1a5444d47c6c3e34c5c1a991c4a80835ba4f43 ]

Since
commit 999b2ee0fe45 ("app/testpmd: enable NUMA support by default"),
testpmd is started with numa enabled by default. This highlights a
floating point exception when started with --total-num-mbufs without any
port (division by 0). This bug was already triggered before this commit
if the --no-numa option was given.

This commit adds a check of the nb_ports value before doing the
division. By looking at this code, it appears that the creation of the
mbuf pool is not consistent for the number of mbufs depending on the
configuration. This is fixed in the next commit.

Fixes: b6ea6408fbc7 ("ethdev: store numa_node per device")

Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
Acked-by: Jingjing Wu <jingjing.wu at intel.com>
---
 app/test-pmd/testpmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index efd7d64..5d89c86 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -572,7 +572,7 @@ init_config(void)
 		uint8_t i;
 		unsigned int nb_mbuf;
 
-		if (param_total_num_mbufs)
+		if (param_total_num_mbufs && nb_ports != 0)
 			nb_mbuf_per_pool = nb_mbuf_per_pool/nb_ports;
 
 		for (i = 0; i < max_socket; i++) {
-- 
1.9.0