Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 1e4cb22b authored by Per Forlin's avatar Per Forlin Committed by Chris Ball
Browse files

fault-inject: add documentation on MMC IO fault injection 



Add description on how to enable random fault injection
for MMC IO.

Signed-off-by: default avatarPer Forlin <per.forlin@linaro.org>
Acked-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent 1b676f70

Documentation/fault-injection/fault-injection.txt

+7 −1
Original line number Original line Diff line number Diff line
@@ -21,6 +21,11 @@ o fail_make_request 
  /sys/block/<device>/make-it-fail or

  /sys/block/<device>/make-it-fail or

  /sys/block/<device>/<partition>/make-it-fail. (generic_make_request())

  /sys/block/<device>/<partition>/make-it-fail. (generic_make_request())





o fail_mmc_request



  injects MMC data errors on devices permitted by setting

  debugfs entries under /sys/kernel/debug/mmc0/fail_mmc_request



Configure fault-injection capabilities behavior

Configure fault-injection capabilities behavior

-----------------------------------------------

-----------------------------------------------
@@ -115,7 +120,8 @@ use the boot option: 




	failslab=

	failslab=

	fail_page_alloc=

	fail_page_alloc=

	fail_make_request=<interval>,<probability>,<space>,<times>

	fail_make_request=

	fail_mmc_request=<interval>,<probability>,<space>,<times>





How to add new fault injection capability

How to add new fault injection capability

-----------------------------------------

-----------------------------------------