Memory leak / dmesg

Jouni Malinen jkmaline at cc.hut.fi
Mon Apr 17 23:20:40 EDT 2006


On Fri, Apr 14, 2006 at 10:33:16AM -0700, Tom Sharples wrote:

> We kicked that client (a dlink DI-624) off the system using mac deny and the 
> problem went away.

OK. That's sound like a clear enough indication that this station was
indeed triggering something in the AP.

> This is a commercial installation with multiple active 
> customers so we're limited in what we can do experimentally. Kernel and 
> hostap version are older (late 2003 vintage) Perhaps the leak was caused not 
> by the extra bytes, but rather the repeated assoc / disassociation activity 
> you can see in the log (?)

I would really like to see this reproduced with something more recent
than 2003 versions before using much time with this.. Repeated
association attempts would indeed much more like source of memory leaks.
The "extra data" does not really change frame processing at all apart
from that additional debug message.

If someone can reproduce this with the current driver version and could
send a copy of /proc/slabinfo before and after the test case, that
would help quite a bit in diagnosing this. I'll add this to be
things-to-test list, but it is not very high on priority (well, at least
until it gets confirmed).

-- 
Jouni Malinen                                            PGP id EFC895FA



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