Re: Leaks in trace reported by kmemleak

[Li Zefan]

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@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/