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Date: Thu, 15 Oct 2009 17:46:13 +0800 From: Li Zefan <lizf@...fujitsu.com> To: Zdenek Kabelac <zdenek.kabelac@...il.com> CC: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Steven Rostedt <rostedt@...dmis.org>, Frederic Weisbecker <fweisbec@...il.com>, Catalin Marinas <catalin.marinas@....com>, Ingo Molnar <mingo@...e.hu> Subject: Re: Leaks in trace reported by kmemleak CC: ... Zdenek Kabelac wrote: > I've noticed your latest patch for memory leak in filter setting > (8ad807318fcd...) - but even with this patch - kmemleak seems to still > report lots (~900) of following leaks - note - they come only from > i915 and kvm module - so I'm not sure if these two modules are doing > something wrong or the problem is in trace code. > > It looks like whole directory is somehow forgotten. > Fortunately those are false-positives: # modprobe i915 # echo scan > /debug/kmemleak # cat /debug/kmemleak (lots of "leaks") # rmmod i915 # echo scan > /debug/kmemleak # cat /debug/kmemleak (no leaks) All the memory allocated when loading the module is freed in trace_module_remove_events() at module unload. But I haven't looked into how to suppress those false-postives. I'd like to, but I'm going to leave my office and won't be back until 26th.. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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