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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2006-12-08 02:39:45 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-08 08:29:02 -0800 |
| commit | 933e312e73f8fc39652bd4d216a5393cc3a014b9 (patch) | |
| tree | a2aacc2a098c3c95fe5a94fef1a2cc9751bee79b /lib/debug_locks.c | |
| parent | 8a8b6502fb669c3a0638a08955442814cedc86b1 (diff) | |
| download | linux-933e312e73f8fc39652bd4d216a5393cc3a014b9.tar.gz | |
[PATCH] fault-injection capability for alloc_pages()
This patch provides fault-injection capability for alloc_pages() Boot option: fail_page_alloc=<interval>,<probability>,<space>,<times> <interval> -- specifies the interval of failures. <probability> -- specifies how often it should fail in percent. <space> -- specifies the size of free space where memory can be allocated safely in pages. <times> -- specifies how many times failures may happen at most. Debugfs: /debug/fail_page_alloc/interval /debug/fail_page_alloc/probability /debug/fail_page_alloc/specifies /debug/fail_page_alloc/times /debug/fail_page_alloc/ignore-gfp-highmem /debug/fail_page_alloc/ignore-gfp-wait Example: fail_page_alloc=10,100,0,-1 The page allocation (alloc_pages(), ...) fails once per 10 times. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'lib/debug_locks.c')
0 files changed, 0 insertions, 0 deletions