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| author | Per Forlin <per.forlin@linaro.org> | 2011-08-19 14:52:38 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-10-26 15:43:34 -0400 |
| commit | 1e4cb22bb5094def8eb5c3893f9dda2d517d29bb (patch) | |
| tree | 95d567fd1176126e14971c0135e079b552307a1d /Documentation/fault-injection | |
| parent | 1b676f70c108cda90cf9d114d16c677584400efc (diff) | |
| download | lwn-1e4cb22bb5094def8eb5c3893f9dda2d517d29bb.tar.gz lwn-1e4cb22bb5094def8eb5c3893f9dda2d517d29bb.zip | |
fault-inject: add documentation on MMC IO fault injection
Add description on how to enable random fault injection
for MMC IO.
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'Documentation/fault-injection')
| -rw-r--r-- | Documentation/fault-injection/fault-injection.txt | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt index 82a5d250d75e..70f924ec1e58 100644 --- a/Documentation/fault-injection/fault-injection.txt +++ b/Documentation/fault-injection/fault-injection.txt @@ -21,6 +21,11 @@ o fail_make_request /sys/block/<device>/make-it-fail or /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 ----------------------------------------------- @@ -115,7 +120,8 @@ use the boot option: failslab= 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 ----------------------------------------- |