[OpenWrt-Devel] Memory leak in mac80211?

Arjen de Korte arjen+openwrt at de-korte.org
Sun Dec 20 11:00:25 EST 2015

Citeren Felix Fietkau <nbd at openwrt.org>:

> On 2015-12-20 11:52, Arjen de Korte wrote:
>> Since commit 47771 it seems my WNDR4300 router suffers from a memory
>> leak. Before then, the amount of free memory was always around 75%,
>> but since then it steadily decreases until it runs out of memory and
>> reboots. The process then starts all over again. After a couple of
>> days of 'git bisect'ing, I found this to be the commit that introduced
>> this phenomenon. See attached kmemleak.txt file for more information.
>> I don't know how to go on from here to aid in debugging what is going
>> on. Is there something else I can provide to help finding how to solve
>> this?
> Please copy http://nbd.name/990-remove_full_ap_client_state.patch to
> package/kernel/mac80211/patches and try again.

Still no joy, see attached kmemleak output. In about four hours time,  
free memory decreased by about 10% (of 128 MB). Is there anything else  
I can do to aid in finding the cause? This is with r47953 by the way,  
with the above mentioned patch included (I checked in the build_dir,  
the patch applied successfully.

Best regards,
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