From 92b9277abcb72de83018ba3a56705d052abbb3fd Mon Sep 17 00:00:00 2001
From: huangxin <huangxin@cmhi.chinamobile.com>
Date: Mon, 30 May 2022 20:16:06 +0800
Subject: [PATCH] =?UTF-8?q?OCT=20REM:=201.=20=E4=BF=AE=E6=AD=A3pbuf?=
 =?UTF-8?q?=E5=86=85=E5=AD=98=E5=A4=9A=E6=AC=A1=E9=87=8A=E6=94=BE=E5=BC=82?=
 =?UTF-8?q?=E5=B8=B8=E9=97=AE=E9=A2=98?=
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---
 srcs/lwip/src/arch_linux/include/lwipopts.h | 6 +++---
 srcs/lwip/src/core/pbuf.c                   | 6 +++++-
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/srcs/lwip/src/arch_linux/include/lwipopts.h b/srcs/lwip/src/arch_linux/include/lwipopts.h
index 5ace1e9..c681f5a 100644
--- a/srcs/lwip/src/arch_linux/include/lwipopts.h
+++ b/srcs/lwip/src/arch_linux/include/lwipopts.h
@@ -177,7 +177,7 @@
 /**
  * PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
  */
-#define PBUF_POOL_SIZE 10000
+#define PBUF_POOL_SIZE 8
 
 /*
    ---------------------------------
@@ -477,7 +477,7 @@ void sys_unlock_tcpip_core(void);
 #define LWIP_DBG_TYPES_ON               (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH)
 
 //#define ETHARP_DEBUG                    LWIP_DBG_ON
-#define NETIF_DEBUG                     LWIP_DBG_ON
+//#define NETIF_DEBUG                     LWIP_DBG_ON
 //#define PBUF_DEBUG                      LWIP_DBG_ON
 //#define API_LIB_DEBUG                   LWIP_DBG_ON
 //#define API_MSG_DEBUG                   LWIP_DBG_ON
@@ -502,7 +502,7 @@ void sys_unlock_tcpip_core(void);
 //#define TCP_QLEN_DEBUG                  LWIP_DBG_ON
 //#define UDP_DEBUG                       LWIP_DBG_ON
 //#define TCPIP_DEBUG                     LWIP_DBG_ON
-#define PPP_DEBUG                       LWIP_DBG_ON
+//#define PPP_DEBUG                       LWIP_DBG_ON
 //#define SLIP_DEBUG                      LWIP_DBG_ON
 //#define DHCP_DEBUG                      LWIP_DBG_ON
 //#define AUTOIP_DEBUG                    LWIP_DBG_ON
diff --git a/srcs/lwip/src/core/pbuf.c b/srcs/lwip/src/core/pbuf.c
index 7638dfd..5d6ca20 100644
--- a/srcs/lwip/src/core/pbuf.c
+++ b/srcs/lwip/src/core/pbuf.c
@@ -750,7 +750,11 @@ pbuf_free(struct pbuf *p)
      * further protection. */
     SYS_ARCH_PROTECT(old_level);
     /* all pbufs in a chain are referenced at least once */
-    LWIP_ASSERT("pbuf_free: p->ref > 0", p->ref > 0);
+    //LWIP_ASSERT("pbuf_free: p->ref > 0", p->ref > 0);
+    if(p->ref == 0) {
+        return 1;
+    }
+
     /* decrease reference count (number of pointers to pbuf) */
     ref = --(p->ref);
     SYS_ARCH_UNPROTECT(old_level);