Documentation/fault-injection/fault-injection.rst

2 Fault injection capabilities infrastructure
8 Available fault injection capabilities
25   injects futex deadlock and uaddr fault errors.
48 - NVMe fault injection
55 - Null test block driver fault injection
64 Configure fault-injection capabilities behavior
70 fault-inject-debugfs kernel module provides some debugfs entries for runtime
71 configuration of fault-injection capabilities.
109 	to debug the problems revealed by fault injection.
232 	that the fault setup with a previous write to this file was injected.
233 	A positive integer N indicates that the fault wasn't yet injected.
307 How to add new fault injection capability
310 - #include <linux/fault-inject.h>
312 - define the fault attributes
316   Please see the definition of struct fault_attr in fault-inject.h
319 - provide a way to configure fault attributes
323   If you need to enable the fault injection capability from boot time, you can
337   If the scope of the fault injection capability is limited to a
339   configure the fault attributes.
466 tools/testing/fault-injection/failcmd.sh.  Please run a command
467 "./tools/testing/fault-injection/failcmd.sh --help" for more information and
475 	# ./tools/testing/fault-injection/failcmd.sh \
481 	# ./tools/testing/fault-injection/failcmd.sh --times=100 \
488 		./tools/testing/fault-injection/failcmd.sh --times=100 \
526 		printf("%d-th fault %c: res=%d/%d\n", i, atoi(buf) ? 'N' : 'Y',
536 	1-th fault Y: res=-1/23
537 	2-th fault Y: res=-1/23
538 	3-th fault Y: res=-1/12
539 	4-th fault Y: res=-1/12
540 	5-th fault Y: res=-1/23
541 	6-th fault Y: res=-1/23
542 	7-th fault Y: res=-1/23
543 	8-th fault Y: res=-1/12
544 	9-th fault Y: res=-1/12
545 	10-th fault Y: res=-1/12
546 	11-th fault Y: res=-1/12
547 	12-th fault Y: res=-1/12
548 	13-th fault Y: res=-1/12
549 	14-th fault Y: res=-1/12
550 	15-th fault Y: res=-1/12
551 	16-th fault N: res=0/12