From patchwork Fri Aug 3 05:50:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qu Wenruo X-Patchwork-Id: 10554577 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2CDC6139A for ; Fri, 3 Aug 2018 05:50:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 226952C356 for ; Fri, 3 Aug 2018 05:50:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 16E7C2C385; Fri, 3 Aug 2018 05:50:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A5E282C356 for ; Fri, 3 Aug 2018 05:50:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727426AbeHCHpJ (ORCPT ); Fri, 3 Aug 2018 03:45:09 -0400 Received: from mx2.suse.de ([195.135.220.15]:41500 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726799AbeHCHpJ (ORCPT ); Fri, 3 Aug 2018 03:45:09 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 9FD57AF76 for ; Fri, 3 Aug 2018 05:50:29 +0000 (UTC) From: Qu Wenruo To: linux-btrfs@vger.kernel.org Subject: [PATCH 2/6] btrfs-progs: Exit gracefully when failed to repair root dir item Date: Fri, 3 Aug 2018 13:50:18 +0800 Message-Id: <20180803055022.9816-3-wqu@suse.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180803055022.9816-1-wqu@suse.com> References: <20180803055022.9816-1-wqu@suse.com> Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Another BUG_ON() during fuzz/003: ------ Reviewed-by: Nikolay Borisov ====== RUN MAYFAIL /home/adam/btrfs/btrfs-progs/btrfs check --init-csum-tree /home/adam/btrfs/btrfs-progs/tests//fuzz-tests/images/bko-161821.raw.restored [1/7] checking root items Fixed 0 roots. [2/7] checking extents parent transid verify failed on 4198400 wanted 14 found 1114126 parent transid verify failed on 4198400 wanted 14 found 1114126 Ignoring transid failure owner ref check failed [4198400 4096] repair deleting extent record: key [4198400,169,0] adding new tree backref on start 4198400 len 4096 parent 0 root 5 Repaired extent references for 4198400 ref mismatch on [4222976 4096] extent item 1, found 0 backref 4222976 root 7 not referenced back 0x55e9cc694780 incorrect global backref count on 4222976 found 1 wanted 0 backpointer mismatch on [4222976 4096] owner ref check failed [4222976 4096] repair deleting extent record: key [4222976,169,0] Repaired extent references for 4222976 [3/7] checking free space cache [4/7] checking fs roots parent transid verify failed on 4198400 wanted 14 found 1114126 Ignoring transid failure Wrong generation of child node/leaf, wanted: 1114126, have: 14 root 5 missing its root dir, recreating parent transid verify failed on 4198400 wanted 14 found 1114126 Ignoring transid failure ERROR: child eb corrupted: parent bytenr=4222976 item=0 parent level=1 child level=2 check/main.c:2738: check_inode_recs: BUG_ON `ret` triggered, value -5 failed (ignored, ret=134): /home/adam/btrfs/btrfs-progs/btrfs check --init-csum-tree /home/adam/btrfs/btrfs-progs/tests//fuzz-tests/images/bko-161821.raw.restored mayfail: returned code 134 (SIGABRT), not ignored test failed for case 003-multi-check-unmounted ------ Just abort current transaction and exit gracefully in this case. Signed-off-by: Qu Wenruo --- check/main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/check/main.c b/check/main.c index b597e2a607e5..e6756e0f852b 100644 --- a/check/main.c +++ b/check/main.c @@ -2735,7 +2735,10 @@ static int check_inode_recs(struct btrfs_root *root, (unsigned long long)root->objectid); ret = btrfs_make_root_dir(trans, root, root_dirid); - BUG_ON(ret); + if (ret < 0) { + btrfs_abort_transaction(trans, ret); + return ret; + } btrfs_commit_transaction(trans, root); return -EAGAIN;