The write-hole problem is a rare case, wherever it happens. https://lwn.net/Articles/665299/ https://lwn.net/Articles/665299/ On Btrfs, in case of bad parity b

The write-hole problem is a rare case, wherever it happens. https://lwn.net/Articles/665299/ https://lwn.net/Articles/665299/ On Btrfs, in case of bad parity being used to reconstruct a stripe, the resulting bad reconstruction is still subject to data checksumming, and will EIO. Corrupt data won't be sent to user space.