mem: require at least two segs per memseg lists in map-perfect mode

(cherry picked from commit 54ce0b901c694c7fc3753c776935ebcd4d5bdd3b)

0036-require-at-least-two-segs-per-memseg-lists-in-map-pe.patch

@@ -0,0 +1,33 @@
+From c766c3d12b1bb5e791cff3f34c733f18ce5cdd18 Mon Sep 17 00:00:00 2001
+From: jiangheng <jiangheng14@huawei.com>
+Date: Thu, 9 May 2024 21:57:54 +0800
+Subject: [PATCH] require at least two segs per memseg lists in map-perfect
+ mode
+
+---
+ lib/eal/common/eal_common_dynmem.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/lib/eal/common/eal_common_dynmem.c b/lib/eal/common/eal_common_dynmem.c
+index 89e2acd..7f270a0 100644
+--- a/lib/eal/common/eal_common_dynmem.c
++++ b/lib/eal/common/eal_common_dynmem.c
+@@ -229,8 +229,14 @@ eal_dynmem_memseg_lists_init(void)
+ 				"n_segs:%i socket_id:%i hugepage_sz:%" PRIu64 "\n",
+ 			n_seglists, n_segs, socket_id, pagesz);
+ 
+-		if (internal_conf->map_perfect)
++		if (internal_conf->map_perfect) {
+ 			need_n_segs = eal_sec_get_num_pages(used_hp, pagesz, socket_id);
++			/*
++			 * commit 51a5a72e2a (eal/linux: fix legacy mem init with many segments) require
++			 * at least 2 segs per memseg list
++			 */
++			need_n_segs = RTE_MAX(2, need_n_segs);
++		}
+ 		else
+ 			need_n_segs = n_segs;
+ 
+-- 
+2.27.0
+

dpdk.spec

@@ -10,7 +10,7 @@
 
 Name: dpdk
 Version: 23.11
-Release: 15
+Release: 16
 URL: http://dpdk.org
 Source: https://fast.dpdk.org/rel/dpdk-%{version}.tar.xz
 
@@ -57,6 +57,8 @@ Patch6033: 0033-net-hns3-enable-PFC-for-all-user-priorities.patch
 Patch6034: 0034-app-testpmd-fix-RSS-algorithm-choice.patch
 Patch6035: 0035-net-hns3-support-new-device.patch
 
+Patch9036: 0036-require-at-least-two-segs-per-memseg-lists-in-map-pe.patch
+
 BuildRequires: meson
 BuildRequires: python3-pyelftools
 BuildRequires: diffutils
@@ -257,6 +259,9 @@ strip -g $RPM_BUILD_ROOT/lib/modules/%{kern_devel_ver}/extra/dpdk/igb_uio.ko
 %endif
 
 %changelog
+* Thu May 09 2024 jiangheng <jiangheng14@huawei.com> - 23.11-16
+- require at least two segs per memseg lists in map-perfect mode
+
 * Mon May 06 2024 laokz <zhangkai@iscas.ac.cn> - 23.11-15
 - riscv64: Remove unsupported rte_net_i40e for gazelle-pdump