Messages in this thread | | | From | Davidlohr Bueso <> | Subject | [PATCH -tip 0/2] futex: Fault/error injection capabilities | Date | Mon, 29 Jun 2015 23:26:00 -0700 |
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Hello,
I've been wanting this for a while to improve overall futex testing. I must say that I checked rather late when I was nearly finished with patch 2 if something similar for futexes had already been proposed. Sure enough, in 2009 this was discussed[1].
Coincidently, I also took the natural approach of making use of our fault-injection machinery. I have no idea if perf nowadays does such things, and if it does not, I honestly don't have the bandwidth to do it Ingo's preferred way -- when there is nothing wrong with this approach, imho (0 overhead). Anyway, here's a working patch.
Patch 1 is merely a trivial add-on.
[1]: https://lwn.net/Articles/364742/
Thanks!
Davidlohr Bueso (2): futex: Enhance comments in futex_lock_pi() for blocking paths futex: Fault/error injection capabilities
Documentation/fault-injection/fault-injection.txt | 11 +++ kernel/futex.c | 100 +++++++++++++++++++++- lib/Kconfig.debug | 7 ++ 3 files changed, 114 insertions(+), 4 deletions(-)
-- 2.1.4
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