specifies the maximum stacktrace depth walked during search
for a caller within [address-start,address-end).
-- /debug/failslab/ignore-gfp-highmem:
- /debug/fail_page_alloc/ignore-gfp-highmem:
Format: { 0 | 1 }
echo 100 > /debug/$FAILNAME/interval
echo -1 > /debug/$FAILNAME/times
echo 2 > /debug/$FAILNAME/verbose
-echo 1 > /debug/$FAILNAME/ignore-gfp-highmem
echo 1 > /debug/$FAILNAME/ignore-gfp-wait
blacklist()