From 8a8b6502fb669c3a0638a08955442814cedc86b1 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Fri, 8 Dec 2006 02:39:44 -0800 Subject: [PATCH] fault-injection capability for kmalloc This patch provides fault-injection capability for kmalloc. Boot option: failslab=,,, -- specifies the interval of failures. -- specifies how often it should fail in percent. -- specifies the size of free space where memory can be allocated safely in bytes. -- specifies how many times failures may happen at most. Debugfs: /debug/failslab/interval /debug/failslab/probability /debug/failslab/specifies /debug/failslab/times /debug/failslab/ignore-gfp-highmem /debug/failslab/ignore-gfp-wait Example: failslab=10,100,0,-1 slab allocation (kmalloc(), kmem_cache_alloc(),..) fails once per 10 times. Cc: Pekka Enberg Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/fault-injection/fault-injection.txt | 2 -- 1 file changed, 2 deletions(-) (limited to 'Documentation/fault-injection') diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt index 260ce6c199ce..cf075c20eda0 100644 --- a/Documentation/fault-injection/fault-injection.txt +++ b/Documentation/fault-injection/fault-injection.txt @@ -86,7 +86,6 @@ configuration of fault-injection capabilities. 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 } @@ -167,7 +166,6 @@ echo 10 > /debug/$FAILNAME/probability echo 100 > /debug/$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() -- cgit v1.2.3-59-g8ed1b