fault injection

Tool	Level	Target	Comment
CharybdeFS	Userspace (FUSE)	Filesystem	Requires Thrift
PetardFS	Userspace (FUSE)	Filesystem	https://github.com/jrandall/petardfs
UnreliableFS	Userspace (FUSE)	Filesystem	https://github.com/ligurio/unreliablefs
Device Mapper	Kernel space	Disk I/O	Use Device Mapper's error/flakey/delay/dm-dust devices to return errors/corruption from, or delay/split IO to a synthesized block device (kernel, requires kernel to have been built with device mapper support, appropriate additional device mapper modules (dm-dust is only available on kernel >=5.2) and to have device mapper userspace bits). https://www.kernel.org/doc/Documentation/device-mapper/delay.txt
QEMU	Hardware	Disk, Memory	blkdebug https://github.com/qemu/qemu/blob/master/docs/devel/blkdebug.txt
sysrq	Kernel space	OS crash	echo c > /proc/sysrq-trigger, https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html
BSOD	Kernel space	OS crash	Windows only, https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/forcing-a-system-crash-from-the-keyboard
strace	Userspace	POSIX API calls	https://strace.io/
libfui	Userspace (LD_PRELOAD)	POSIX API calls	Use libfiu to perform fault injection on POSIX API calls, http://blitiri.com.ar/p/libfiu/
SystemTap	Userspace	POSIX API calls	Using SystemTap to do fault injection (kernel, requires a kernel to have been built with lots of stuff), https://lwn.net/Articles/289932/
libfaketime	Userspace (LD_PRELOAD)		https://github.com/wolfcw/libfaketime
strobe time	Userspace		https://github.com/jepsen-io/jepsen/tree/main/jepsen/resources
Linux kernel's fault injector	Kernel space		Use the Linux kernel's fault injector to inject an error into the underlying block device (kernel, requires kernel to have been built with FAIL_MAKE_REQUEST=y).
trickle	Userspace	Network bandwidth	Bandwidth shaper for Unix-like systems, https://github.com/mariusae/trickle
tc (Linux), dummynet (FreeBSD)	Kernel space	Network bandwidth	https://man7.org/linux/man-pages/man8/tc.8.html, https://www.freebsd.org/cgi/man.cgi?dummynet
Linux kernel NVMe fault injection	Kernel space	NVMe	https://www.kernel.org/doc/html/latest/fault-injection/nvme-fault-injection.html
Linux kernel notifier fault injection	Kernel space	Kernel events	https://www.kernel.org/doc/html/latest/fault-injection/notifier-error-inject.html
Linux kernel fault injection capabilities infrastructure	Kernel space	Memory	https://www.kernel.org/doc/html/latest/fault-injection/fault-injection.html