From owner-svn-src-stable-11@freebsd.org Tue Dec 26 04:02:36 2017 Return-Path: Delivered-To: svn-src-stable-11@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 DE889E9D434; Tue, 26 Dec 2017 04:02:36 +0000 (UTC) (envelope-from asomers@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 9D3283EE5; Tue, 26 Dec 2017 04:02:36 +0000 (UTC) (envelope-from asomers@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id vBQ42Zwc063547; Tue, 26 Dec 2017 04:02:35 GMT (envelope-from asomers@FreeBSD.org) Received: (from asomers@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id vBQ42ZJO063546; Tue, 26 Dec 2017 04:02:35 GMT (envelope-from asomers@FreeBSD.org) Message-Id: <201712260402.vBQ42ZJO063546@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: asomers set sender to asomers@FreeBSD.org using -f From: Alan Somers Date: Tue, 26 Dec 2017 04:02:35 +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: r327188 - stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Group: stable-11 X-SVN-Commit-Author: asomers X-SVN-Commit-Paths: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Commit-Revision: 327188 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-11@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for only the 11-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Dec 2017 04:02:37 -0000 Author: asomers Date: Tue Dec 26 04:02:35 2017 New Revision: 327188 URL: https://svnweb.freebsd.org/changeset/base/327188 Log: MFC r326401: Fix assertion when ZFS fails to open certain devices "panic: vdev_geom_close_locked: cp->private is NULL" This panic will result if ZFS fails to open a device due to either of the following reasons: 1) The device's sector size is greater than 8KB. 2) ZFS wants to open the device RW, but it can't be opened for writing. The solution is to change the initialization order to ensure that the assertion will be satisfied. PR: 221066 Reported by: David NewHamlet Reviewed by: avg Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D13278 Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c ============================================================================== --- stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c Tue Dec 26 04:00:30 2017 (r327187) +++ stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c Tue Dec 26 04:02:35 2017 (r327188) @@ -851,35 +851,10 @@ vdev_geom_open(vdev_t *vd, uint64_t *psize, uint64_t * if (cp == NULL) { ZFS_LOG(1, "Vdev %s not found.", vd->vdev_path); error = ENOENT; - } else if (cp->provider->sectorsize > VDEV_PAD_SIZE || - !ISP2(cp->provider->sectorsize)) { - ZFS_LOG(1, "Provider %s has unsupported sectorsize.", - cp->provider->name); - - vdev_geom_close_locked(vd); - error = EINVAL; - cp = NULL; - } else if (cp->acw == 0 && (spa_mode(vd->vdev_spa) & FWRITE) != 0) { - int i; - - for (i = 0; i < 5; i++) { - error = g_access(cp, 0, 1, 0); - if (error == 0) - break; - g_topology_unlock(); - tsleep(vd, 0, "vdev", hz / 2); - g_topology_lock(); - } - if (error != 0) { - printf("ZFS WARNING: Unable to open %s for writing (error=%d).\n", - cp->provider->name, error); - vdev_geom_close_locked(vd); - cp = NULL; - } - } - if (cp != NULL) { + } else { struct consumer_priv_t *priv; struct consumer_vdev_elem *elem; + int spamode; priv = (struct consumer_priv_t*)&cp->private; if (cp->private == NULL) @@ -887,6 +862,34 @@ vdev_geom_open(vdev_t *vd, uint64_t *psize, uint64_t * elem = g_malloc(sizeof(*elem), M_WAITOK|M_ZERO); elem->vd = vd; SLIST_INSERT_HEAD(priv, elem, elems); + + spamode = spa_mode(vd->vdev_spa); + if (cp->provider->sectorsize > VDEV_PAD_SIZE || + !ISP2(cp->provider->sectorsize)) { + ZFS_LOG(1, "Provider %s has unsupported sectorsize.", + cp->provider->name); + + vdev_geom_close_locked(vd); + error = EINVAL; + cp = NULL; + } else if (cp->acw == 0 && (spamode & FWRITE) != 0) { + int i; + + for (i = 0; i < 5; i++) { + error = g_access(cp, 0, 1, 0); + if (error == 0) + break; + g_topology_unlock(); + tsleep(vd, 0, "vdev", hz / 2); + g_topology_lock(); + } + if (error != 0) { + printf("ZFS WARNING: Unable to open %s for writing (error=%d).\n", + cp->provider->name, error); + vdev_geom_close_locked(vd); + cp = NULL; + } + } } /* Fetch initial physical path information for this device. */