Eric Sandeen wrote: > The do_split() function for htree dir blocks is intended to split a > leaf block to make room for a new entry. It sorts the entries in the > original block by hash value, then moves the last half of the entries to > the new block - without accounting for how much space this actually moves. > (IOW, it moves half of the entry *count* not half of the entry *space*). > If by chance we have both large & small entries, and we move only the > smallest entries, and we have a large new entry to insert, we may not have > created enough space for it. (btw, the upshot of this is that in add_dirent_to_buf(), memcpy(de->name, name, namelen) will overshoot the buffer and actually corrupt memory.) :( -Eric - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
