Documentation/fault-injection/fault-injection.rst

2 Fault injection capabilities infrastructure
8 Available fault injection capabilities
25   injects futex deadlock and uaddr fault errors.
44 - NVMe fault injection
52 Configure fault-injection capabilities behavior
58 fault-inject-debugfs kernel module provides some debugfs entries for runtime
59 configuration of fault-injection capabilities.
97 	to debug the problems revealed by fault injection.
197 	that the fault setup with a previous write to this file was injected.
198 	A positive integer N indicates that the fault wasn't yet injected.
207 How to add new fault injection capability
210 - #include <linux/fault-inject.h>
212 - define the fault attributes
216   Please see the definition of struct fault_attr in fault-inject.h
219 - provide a way to configure fault attributes
223   If you need to enable the fault injection capability from boot time, you can
237   If the scope of the fault injection capability is limited to a
239   configure the fault attributes.
366 tools/testing/fault-injection/failcmd.sh.  Please run a command
367 "./tools/testing/fault-injection/failcmd.sh --help" for more information and
375 	# ./tools/testing/fault-injection/failcmd.sh \
381 	# ./tools/testing/fault-injection/failcmd.sh --times=100 \
388 		./tools/testing/fault-injection/failcmd.sh --times=100 \
426 		printf("%d-th fault %c: res=%d/%d\n", i, atoi(buf) ? 'N' : 'Y',
436 	1-th fault Y: res=-1/23
437 	2-th fault Y: res=-1/23
438 	3-th fault Y: res=-1/12
439 	4-th fault Y: res=-1/12
440 	5-th fault Y: res=-1/23
441 	6-th fault Y: res=-1/23
442 	7-th fault Y: res=-1/23
443 	8-th fault Y: res=-1/12
444 	9-th fault Y: res=-1/12
445 	10-th fault Y: res=-1/12
446 	11-th fault Y: res=-1/12
447 	12-th fault Y: res=-1/12
448 	13-th fault Y: res=-1/12
449 	14-th fault Y: res=-1/12
450 	15-th fault Y: res=-1/12
451 	16-th fault N: res=0/12