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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50AC2C00140 for ; Fri, 12 Aug 2022 13:21:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238445AbiHLNUo (ORCPT ); Fri, 12 Aug 2022 09:20:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37506 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236007AbiHLNUn (ORCPT ); Fri, 12 Aug 2022 09:20:43 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1CDEA6554D; Fri, 12 Aug 2022 06:20:42 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 5E3C220662; Fri, 12 Aug 2022 13:20:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1660310440; h=from:from:reply-to:reply-to:date:date:message-id:message-id:to:to: cc:cc:mime-version:mime-version:content-type:content-type; bh=4wKruI1cYrNPkLpX2e+wKUucwtffWcjJmuZ2pefVyBQ=; b=HWcMOVvMBicoJy78E3+5w3zg9LRQZAJIwTsIkS0sloK0vFghUGsnQrxjQELUA7Ooeu4p2z Ipxpn7GOB5TZLDApqUNj5/spGhYHB4/maIdrmSBm76DamlAronQrzxkeRvfB450D4GJyl8 jyB32PYwUhPRnkYbqPiSRzVhNrTW+HI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1660310440; h=from:from:reply-to:reply-to:date:date:message-id:message-id:to:to: cc:cc:mime-version:mime-version:content-type:content-type; bh=4wKruI1cYrNPkLpX2e+wKUucwtffWcjJmuZ2pefVyBQ=; b=61mHgosgw2R5w4IFHn1wf1BfLHN2vnF8bMAisF0hDgockTEKYXvFHkGGutY+H72t0bGREq ARVyBDDkYiVaLbAA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 1D66C13305; Fri, 12 Aug 2022 13:20:40 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id HKwHA6hT9mLqKQAAMHmgww (envelope-from ); Fri, 12 Aug 2022 13:20:40 +0000 Date: Fri, 12 Aug 2022 15:20:37 +0200 From: Petr Vorel To: linux-block@vger.kernel.org Cc: Jens Axboe , Jan Kara , Hannes Reinecke , linux-xfs@vger.kernel.org Subject: LTP test df01.sh detected different size of loop device in v5.19 Message-ID: Reply-To: Petr Vorel MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hi all, LTP test df01.sh found different size of loop device in v5.19. Test uses loop device formatted on various file systems, only XFS fails. It randomly fails during verifying that loop size usage changes: grep ${TST_DEVICE} output | grep -q "${total}.*${used}" [1] How to reproduce: # PATH="/opt/ltp/testcases/bin:$PATH" df01.sh -f xfs # it needs several tries to hit df saved output: Filesystem 1024-blocks Used Available Capacity Mounted on ... /dev/loop0 256672 16208 240464 7% /tmp/LTP_df01.1kRwoUCCR7/mntpoint df output: Filesystem 1024-blocks Used Available Capacity Mounted on ... tmpfs 201780 0 201780 0% /run/user/0 /dev/loop0 256672 15160 241512 6% /tmp/LTP_df01.1kRwoUCCR7/mntpoint => different size df01 4 TFAIL: 'df -k -P' failed, not expected. Also 'df -T -P' fails. It might be a false positive / bug in the test, but it's at least a changed behavior. I was able to reproduce it on v5.19 distro kernels (openSUSE, Debian). I haven't bisected (yet), nor checked Jens' git tree (maybe it has been fixed). Kind regards, Petr [1] https://github.com/linux-test-project/ltp/blob/f42f6f3b4671f447b743afe8612917ba4362b8a6/testcases/commands/df/df01.sh#L103-L110