From owner-svn-src-head@freebsd.org Tue Aug 8 10:48:53 2017 Return-Path: Delivered-To: svn-src-head@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 76240DD2E2E; Tue, 8 Aug 2017 10:48:53 +0000 (UTC) (envelope-from avg@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 447D87EC72; Tue, 8 Aug 2017 10:48:53 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v78AmqJo030853; Tue, 8 Aug 2017 10:48:52 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v78Amqvm030852; Tue, 8 Aug 2017 10:48:52 GMT (envelope-from avg@FreeBSD.org) Message-Id: <201708081048.v78Amqvm030852@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Tue, 8 Aug 2017 10:48:52 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r322228 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Group: head X-SVN-Commit-Author: avg X-SVN-Commit-Paths: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Commit-Revision: 322228 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Aug 2017 10:48:53 -0000 Author: avg Date: Tue Aug 8 10:48:52 2017 New Revision: 322228 URL: https://svnweb.freebsd.org/changeset/base/322228 Log: MFV r322227: 8377 Panic in bookmark deletion illumos/illumos-gate@42418f9e73f0d007aa87675ecc206c26fc8e073e https://github.com/illumos/illumos-gate/commit/42418f9e73f0d007aa87675ecc206c26fc8e073e https://www.illumos.org/issues/8377 The problem is that when dsl_bookmark_destroy_check() is executed from open context (the pre-check), it fills in dbda_success based on the existence of the bookmark. But the bookmark (or containing filesystem as in this case) can be destroyed before we get to syncing context. When we re-run dsl_bookmark_destroy_check() in syncing context, it will not add the deleted bookmark to dbda_success, intending for dsl_bookmark_destroy_sync() to not process it. But because the bookmark is still in dbda_success from the open-context call, we do try to destroy it. The fix is that dsl_bookmark_destroy_check() should not modify dbda_success when called from open context. Reviewed by: Paul Dagnelie Reviewed by: Pavel Zakharov Reviewed by: George Wilson Approved by: Robert Mustacchi Author: Matthew Ahrens MFC after: 2 weeks Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_bookmark.c Directory Properties: head/sys/cddl/contrib/opensolaris/ (props changed) Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_bookmark.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_bookmark.c Tue Aug 8 10:47:56 2017 (r322227) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_bookmark.c Tue Aug 8 10:48:52 2017 (r322228) @@ -354,6 +354,9 @@ dsl_bookmark_destroy_check(void *arg, dmu_tx_t *tx) dsl_pool_t *dp = dmu_tx_pool(tx); int rv = 0; + ASSERT(nvlist_empty(dbda->dbda_success)); + ASSERT(nvlist_empty(dbda->dbda_errors)); + if (!spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_BOOKMARKS)) return (0); @@ -383,7 +386,10 @@ dsl_bookmark_destroy_check(void *arg, dmu_tx_t *tx) } } if (error == 0) { - fnvlist_add_boolean(dbda->dbda_success, fullname); + if (dmu_tx_is_syncing(tx)) { + fnvlist_add_boolean(dbda->dbda_success, + fullname); + } } else { fnvlist_add_int32(dbda->dbda_errors, fullname, error); rv = error;