From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 827FCA00E6 for ; Tue, 9 Jul 2019 16:00:34 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 604A51B995; Tue, 9 Jul 2019 16:00:34 +0200 (CEST) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 034D01B95A; Tue, 9 Jul 2019 16:00:30 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 09 Jul 2019 07:00:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,470,1557212400"; d="scan'208";a="156185773" Received: from silpixa00399498.ir.intel.com (HELO silpixa00399498.ger.corp.intel.com) ([10.237.223.125]) by orsmga007.jf.intel.com with ESMTP; 09 Jul 2019 07:00:28 -0700 From: Anatoly Burakov To: dev@dpdk.org Cc: patrick.fu@intel.com, stable@dpdk.org Date: Tue, 9 Jul 2019 15:00:27 +0100 Message-Id: X-Mailer: git-send-email 2.17.1 Subject: [dpdk-stable] [PATCH] fbarray: fix fbarray destruction X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" Currently, when fbarray is destroyed, the fbarray structure is not zeroed out, which leads to stale data being there and confusing secondary process init in legacy mem mode. Fix it by always memsetting the fbarray to zero when destroying it. Fixes: 5b61c62cfd76 ("fbarray: add internal tailq for mapped areas") Cc: stable@dpdk.org Signed-off-by: Anatoly Burakov --- lib/librte_eal/common/eal_common_fbarray.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/lib/librte_eal/common/eal_common_fbarray.c b/lib/librte_eal/common/eal_common_fbarray.c index b7ddb66e9..1312f936b 100644 --- a/lib/librte_eal/common/eal_common_fbarray.c +++ b/lib/librte_eal/common/eal_common_fbarray.c @@ -1055,6 +1055,9 @@ rte_fbarray_destroy(struct rte_fbarray *arr) TAILQ_REMOVE(&mem_area_tailq, tmp, next); free(tmp); ret = 0; + + /* reset the fbarray structure */ + memset(arr, 0, sizeof(*arr)); out: rte_spinlock_unlock(&mem_area_lock); return ret; -- 2.17.1