Hi,
Ping on this.
> When journal is released, s_sequence is set to j_tail_sequence.
> But, currently, even if the recovery process is successfully completed,
> the j_tail_sequence and, finally, s_sequence are never changed. By this,
> when we repeat doing power-off the device suddenly and executing e2fsck
> without full scan before mount, the s_sequence number will never change
> and, in a very rare case, newly generated journal logs will be
> surprisingly grafted to the old journal logs. In this case, out-of-date
> metadata log can be replayed on the filesystem area and the filesystem
> can be crashed unintentionally by journal recovery process. Therefore,
> we need to update j_tail_sequence after recovery process is successfully
> completed in e2fsck.��.n��������+%������w��{.n�����{�����ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
