Documentation/fault-injection/fault-injection.rst

36   debugfs entries under /sys/kernel/debug/mmc0/fail_mmc_request
42   under /sys/kernel/debug/fail_function. No boot option supported.
47   debugfs entries under /sys/kernel/debug/nvme*/fault_inject. The default
61 - /sys/kernel/debug/fail*/probability:
69 	/sys/kernel/debug/fail*/interval for such testcases.
71 - /sys/kernel/debug/fail*/interval:
79 - /sys/kernel/debug/fail*/times:
84 - /sys/kernel/debug/fail*/space:
90 - /sys/kernel/debug/fail*/verbose
97 	to debug the problems revealed by fault injection.
99 - /sys/kernel/debug/fail*/task-filter:
107 - /sys/kernel/debug/fail*/require-start,
108   /sys/kernel/debug/fail*/require-end,
109   /sys/kernel/debug/fail*/reject-start,
110   /sys/kernel/debug/fail*/reject-end:
119 - /sys/kernel/debug/fail*/stacktrace-depth:
125 - /sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem:
132 - /sys/kernel/debug/failslab/ignore-gfp-wait:
133 - /sys/kernel/debug/fail_page_alloc/ignore-gfp-wait:
140 - /sys/kernel/debug/fail_page_alloc/min-order:
145 - /sys/kernel/debug/fail_futex/ignore-private:
152 - /sys/kernel/debug/fail_function/inject:
161 - /sys/kernel/debug/fail_function/injectable:
170 - /sys/kernel/debug/fail_function/<functiuon-name>/retval:
255     echo Y > /sys/kernel/debug/$FAILTYPE/task-filter
256     echo 10 > /sys/kernel/debug/$FAILTYPE/probability
257     echo 100 > /sys/kernel/debug/$FAILTYPE/interval
258     echo -1 > /sys/kernel/debug/$FAILTYPE/times
259     echo 0 > /sys/kernel/debug/$FAILTYPE/space
260     echo 2 > /sys/kernel/debug/$FAILTYPE/verbose
261     echo 1 > /sys/kernel/debug/$FAILTYPE/ignore-gfp-wait
306     cat /sys/module/$module/sections/.text > /sys/kernel/debug/$FAILTYPE/require-start
307     cat /sys/module/$module/sections/.data > /sys/kernel/debug/$FAILTYPE/require-end
309     echo N > /sys/kernel/debug/$FAILTYPE/task-filter
310     echo 10 > /sys/kernel/debug/$FAILTYPE/probability
311     echo 100 > /sys/kernel/debug/$FAILTYPE/interval
312     echo -1 > /sys/kernel/debug/$FAILTYPE/times
313     echo 0 > /sys/kernel/debug/$FAILTYPE/space
314     echo 2 > /sys/kernel/debug/$FAILTYPE/verbose
315     echo 1 > /sys/kernel/debug/$FAILTYPE/ignore-gfp-wait
316     echo 1 > /sys/kernel/debug/$FAILTYPE/ignore-gfp-highmem
317     echo 10 > /sys/kernel/debug/$FAILTYPE/stacktrace-depth
319     trap "echo 0 > /sys/kernel/debug/$FAILTYPE/probability" SIGINT SIGTERM EXIT
338     echo $FAILFUNC > /sys/kernel/debug/$FAILTYPE/inject
339     echo -12 > /sys/kernel/debug/$FAILTYPE/$FAILFUNC/retval
340     echo N > /sys/kernel/debug/$FAILTYPE/task-filter
341     echo 100 > /sys/kernel/debug/$FAILTYPE/probability
342     echo 0 > /sys/kernel/debug/$FAILTYPE/interval
343     echo -1 > /sys/kernel/debug/$FAILTYPE/times
344     echo 0 > /sys/kernel/debug/$FAILTYPE/space
345     echo 1 > /sys/kernel/debug/$FAILTYPE/verbose
356     echo > /sys/kernel/debug/$FAILTYPE/inject
413 	system("echo N > /sys/kernel/debug/failslab/ignore-gfp-wait");