• luojiajun's avatar
    jbd2: fix invalid descriptor block checksum · 1d62e75a
    luojiajun authored
    [ Upstream commit 6e876c3d ]
    
    In jbd2_journal_commit_transaction(), if we are in abort mode,
    we may flush the buffer without setting descriptor block checksum
    by goto start_journal_io. Then fs is mounted,
    jbd2_descriptor_block_csum_verify() failed.
    
    [  271.379811] EXT4-fs (vdd): shut down requested (2)
    [  271.381827] Aborting journal on device vdd-8.
    [  271.597136] JBD2: Invalid checksum recovering block 22199 in log
    [  271.598023] JBD2: recovery failed
    [  271.598484] EXT4-fs (vdd): error loading journal
    
    Fix this problem by keep setting descriptor block checksum if the
    descriptor buffer is not NULL.
    
    This checksum problem can be reproduced by xfstests generic/388.
    Signed-off-by: default avatarluojiajun <luojiajun3@huawei.com>
    Signed-off-by: Theodore Ts'o's avatarTheodore Ts'o <tytso@mit.edu>
    Reviewed-by: default avatarJan Kara <jack@suse.cz>
    Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
    1d62e75a
commit.c 33.7 KB