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[73.60.226.25]) by smtp.gmail.com with ESMTPSA id i4sm9131025qkh.27.2020.04.13.13.12.13 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 13 Apr 2020 13:12:13 -0700 (PDT) Date: Mon, 13 Apr 2020 16:12:11 -0400 From: Eric Whitney To: linux-ext4@vger.kernel.org Cc: riteshh@linux.ibm.com Subject: generic/456 regression on 5.7-rc1, 1k test case Message-ID: <20200413201211.wbcotcr6rg523wzs@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org I'm seeing consistent failures for generic/456 while running kvm-xfstests' 1k test case on 5.7-rc1. This is with an x86-64 test appliance root file system image dated 23 March 2020. The test fails when e2fsck reports "inconsistent fs: inode 12, i_size is 147456, should be 163840". Bisecting 5.7-rc1 identified the following patch as the cause: ext4: don't set dioread_nolock by default for blocksize < pagesize (626b035b816b). Reverting the patch in 5.7-rc1 reliably eliminates the test failure. Eric