From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Ehrhardt Subject: [PATCH] lpm/lpm6: fix missing free of rules_tbl and lpm Date: Fri, 4 Mar 2016 14:29:05 +0100 Message-ID: <1457098145-13663-1-git-send-email-christian.ehrhardt@canonical.com> To: christian.ehrhardt@canonical.com, dev@dpdk.org Return-path: Received: from youngberry.canonical.com (youngberry.canonical.com [91.189.89.112]) by dpdk.org (Postfix) with ESMTP id 8F4DE2BE6 for ; Fri, 4 Mar 2016 14:29:07 +0100 (CET) List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" lpm6 autotests failed with the default alloc of 512M Memory. While >=2500M was a workaround it became clear while debugging that it had a leak. One could see a lot of output like: LPM Test tests6[i]: FAIL LPM: LPM memory allocation failed It turned out that in rte_lpm6_free - lpm might not be freed if it didn't find a te (early return) - lpm->rules_tbl was not freed ever The first of the two also applies to lpm. --- lib/librte_lpm/rte_lpm.c | 7 ++----- lib/librte_lpm/rte_lpm6.c | 9 ++++----- 2 files changed, 6 insertions(+), 10 deletions(-) diff --git a/lib/librte_lpm/rte_lpm.c b/lib/librte_lpm/rte_lpm.c index cfdf959..941720d 100644 --- a/lib/librte_lpm/rte_lpm.c +++ b/lib/librte_lpm/rte_lpm.c @@ -236,13 +236,10 @@ rte_lpm_free(struct rte_lpm *lpm) if (te->data == (void *) lpm) break; } - if (te == NULL) { - rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK); - return; + if (te != NULL) { + TAILQ_REMOVE(lpm_list, te, next); } - TAILQ_REMOVE(lpm_list, te, next); - rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK); rte_free(lpm); diff --git a/lib/librte_lpm/rte_lpm6.c b/lib/librte_lpm/rte_lpm6.c index 48931cc..5abfc78 100644 --- a/lib/librte_lpm/rte_lpm6.c +++ b/lib/librte_lpm/rte_lpm6.c @@ -278,15 +278,14 @@ rte_lpm6_free(struct rte_lpm6 *lpm) if (te->data == (void *) lpm) break; } - if (te == NULL) { - rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK); - return; - } - TAILQ_REMOVE(lpm_list, te, next); + if (te != NULL) { + TAILQ_REMOVE(lpm_list, te, next); + } rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK); + rte_free(lpm->rules_tbl); rte_free(lpm); rte_free(te); } -- 2.7.0