Messages in this thread | | | Date | Wed, 20 Jul 2011 09:30:36 +0100 | From | Catalin Marinas <> | Subject | Re: kmemleak fails to report detected leaks after allocation failure |
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On Tue, Jul 19, 2011 at 10:14:38PM +0100, Nick Bowler wrote: > I just ran into a somewhat amusing issue with kmemleak. After running > for a while (10 days), and detecting about 100 "suspected memory leaks", > kmemleak ultimately reported: > > kmemleak: Cannot allocate a kmemleak_object structure > kmemleak: Automatic memory scanning thread ended > kmemleak: Kernel memory leak detector disabled > > OK, so something failed and kmemleak apparently can't recover from > this. However, at this point, it appears that kmemleak has *also* > lost the ability to report the earlier leaks that it actually > detected. > > cat: /sys/kernel/debug/kmemleak: Device or resource busy > > It seems to me that kmemleak shouldn't lose the ability to report leaks > that it already detected after it disables itself due to an issue that > was potentially caused by the very leaks that it managed to detect > (unlikely in this instance, but still...).
Very good point, I haven't thought of this. I'll try to improve this part.
Thanks.
-- Catalin
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