From owner-svn-src-all@freebsd.org Thu Aug 18 09:25:12 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 35426BBCA16; Thu, 18 Aug 2016 09:25:12 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 078861C8C; Thu, 18 Aug 2016 09:25:11 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u7I9PBg8093886; Thu, 18 Aug 2016 09:25:11 GMT (envelope-from mav@FreeBSD.org) Received: (from mav@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u7I9PB9v093884; Thu, 18 Aug 2016 09:25:11 GMT (envelope-from mav@FreeBSD.org) Message-Id: <201608180925.u7I9PB9v093884@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mav set sender to mav@FreeBSD.org using -f From: Alexander Motin Date: Thu, 18 Aug 2016 09:25:11 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r304356 - in stable/11/sys/dev/ntb: . if_ntb X-SVN-Group: stable-11 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Aug 2016 09:25:12 -0000 Author: mav Date: Thu Aug 18 09:25:10 2016 New Revision: 304356 URL: https://svnweb.freebsd.org/changeset/base/304356 Log: MFC r302495: Improve memory allocation errors handling on receive. Modified: stable/11/sys/dev/ntb/if_ntb/if_ntb.c stable/11/sys/dev/ntb/ntb_transport.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/dev/ntb/if_ntb/if_ntb.c ============================================================================== --- stable/11/sys/dev/ntb/if_ntb/if_ntb.c Thu Aug 18 09:24:36 2016 (r304355) +++ stable/11/sys/dev/ntb/if_ntb/if_ntb.c Thu Aug 18 09:25:10 2016 (r304356) @@ -241,7 +241,12 @@ ntb_net_rx_handler(struct ntb_transport_ struct mbuf *m = data; struct ifnet *ifp = qp_data; - CTR0(KTR_NTB, "RX: rx handler"); + CTR1(KTR_NTB, "RX: rx handler (%d)", len); + if (len < 0) { + if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); + return; + } + m->m_pkthdr.csum_flags = CSUM_IP_CHECKED | CSUM_IP_VALID; (*ifp->if_input)(ifp, m); } Modified: stable/11/sys/dev/ntb/ntb_transport.c ============================================================================== --- stable/11/sys/dev/ntb/ntb_transport.c Thu Aug 18 09:24:36 2016 (r304355) +++ stable/11/sys/dev/ntb/ntb_transport.c Thu Aug 18 09:25:10 2016 (r304356) @@ -877,6 +877,8 @@ ntb_memcpy_rx(struct ntb_transport_qp *q CTR2(KTR_NTB, "RX: copying %d bytes from offset %p", len, offset); entry->buf = (void *)m_devget(offset, len, 0, ifp, NULL); + if (entry->buf == NULL) + entry->len = -ENOMEM; /* Ensure that the data is globally visible before clearing the flag */ wmb();