Don't know if it's the right place to ask since it's not exactly a new package request, but anyway:
linux 4.12 introduced dm-integrity: a device-mapper target that emulates per-sector (integrity) tags, that can be used to detect silent corrution (bitrot) on a device.
It would be nice to have the kernel module shipped by default since it might be useful, I use linux-kirkwood-dt.
from the wiki https://gitlab.com/cryptsetup/cryptsetu ... MIntegrity:
$this->bbcode_second_pass_quote('', 'T')o enable dm-integrity support, enable CONFIG_DM_INTEGRITY in Device Drivers/Multi-device support
(RAID and LVM) configuration option.
It will automatically enable CONFIG_BLK_DEV_INTEGRITY kernel option to support integrity tags in IO requests.
To configure you need userspace components: device mapper library
(part of LVM2 package) and integritysetup (part of cryptsetup package).
The dm-integrity target is available since kernel version 4.12.