[$] A tale of two data-corruption bugs
There have been two bugs causing filesystem corruption in the news
recently. One of them, a bug in ext4, has gotten the bulk of the
attention, despite the fact that it is an old bug that is hard to trigger.
The other, however, is recent and able to cause data loss on
filesystems installed on a RAID 0 array. Both are interesting
examples of how things can go wrong, and, thus, merit a closer look.