From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Darrick J. Wong" Subject: [PATCH] jbd2: complain about descriptor block checksum errors Date: Thu, 8 Jan 2015 12:03:34 -0800 Message-ID: <20150108200334.GB9976@birch.djwong.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4 , linux-kernel To: "Theodore Ts'o" Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org We should complain in dmesg when journal recovery fails on account of the descriptor block being corrupt, so that the diagnostic data can be recovered. Signed-off-by: Darrick J. Wong --- fs/jbd2/recovery.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c index bcbef08..b5128c6 100644 --- a/fs/jbd2/recovery.c +++ b/fs/jbd2/recovery.c @@ -524,6 +524,9 @@ static int do_one_pass(journal_t *journal, if (descr_csum_size > 0 && !jbd2_descr_block_csum_verify(journal, bh->b_data)) { + printk(KERN_ERR "JBD2: Invalid checksum " + "recovering block %lu in log\n", + next_log_block); err = -EIO; brelse(bh); goto failed;