From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 29D36C43387 for ; Thu, 17 Jan 2019 01:27:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E769F20657 for ; Thu, 17 Jan 2019 01:27:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727766AbfAQB1y (ORCPT ); Wed, 16 Jan 2019 20:27:54 -0500 Received: from mx2.suse.de ([195.135.220.15]:35888 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725864AbfAQB1y (ORCPT ); Wed, 16 Jan 2019 20:27:54 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 7DC3BAEF2 for ; Thu, 17 Jan 2019 01:27:52 +0000 (UTC) From: Qu Wenruo To: linux-btrfs@vger.kernel.org Subject: [PATCH] btrfs: Always output error message when key/level verification fails Date: Thu, 17 Jan 2019 09:27:48 +0800 Message-Id: <20190117012748.18099-1-wqu@suse.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org We have internal report of strange transaction abort due to EUCLEAN without any error message. Since error message inside verify_level_key() is only enabled for CONFIG_BTRFS_DEBUG, the error message won't output for most distro. This patch will make the error message mandatory, so when problem happens we know what's causing the problem. Signed-off-by: Qu Wenruo --- fs/btrfs/disk-io.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 45bf6be9e751..d04ae6deba94 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -435,10 +435,10 @@ static int verify_level_key(struct btrfs_fs_info *fs_info, if (found_level != level) { #ifdef CONFIG_BTRFS_DEBUG WARN_ON(1); +#endif btrfs_err(fs_info, "tree level mismatch detected, bytenr=%llu level expected=%u has=%u", eb->start, level, found_level); -#endif return -EIO; } @@ -459,9 +459,10 @@ static int verify_level_key(struct btrfs_fs_info *fs_info, btrfs_item_key_to_cpu(eb, &found_key, 0); ret = btrfs_comp_cpu_keys(first_key, &found_key); -#ifdef CONFIG_BTRFS_DEBUG if (ret) { +#ifdef CONFIG_BTRFS_DEBUG WARN_ON(1); +#endif btrfs_err(fs_info, "tree first key mismatch detected, bytenr=%llu parent_transid=%llu key expected=(%llu,%u,%llu) has=(%llu,%u,%llu)", eb->start, parent_transid, first_key->objectid, @@ -469,7 +470,6 @@ static int verify_level_key(struct btrfs_fs_info *fs_info, found_key.objectid, found_key.type, found_key.offset); } -#endif return ret; } -- 2.20.1