Russell Senior wrote: > For the last several months we've been running r16375 on a bunch of > Netgear WGT634U's. On #openwrt-devel, nbd mentioned that he had fixed > a memory leak in madwifi, so having noticed that our memory > (free+buffers+cache) seemed to decay over a period of about a week > (the rate varies) to the point where our captive portal (which forks > 10 processes every auth) would tend to fail. > > Aware of the reported fix, I was looking forward to rev'ing up to a > recent revision. However, having flashed r18405 on an active node, I > am seeing what looks like even more rapid decay in available memory > than before. We are running approximately the same user space apps as > before, the biggest memory consumers seem to be olsrd, perl+nocatauth > and openvpn. I am taking occasional snapshots of /proc/$pid/statm, > and those three do seem to change in size a bit, with olsrd seeming to > grow a bit. However, it doesn't seem enough to explain the ~2meg/day > decay in memory. > > Here is an indicative graph: > > > http://silt.personaltelco.net:8080/cacti/graph.php?action=zoom&local_graph_id=253&rra_id=3&view_type= > > Note that the last day (far right) has an even steeper slope of the > top yellow edge (representing the sum of free+buffers+cache) than the > rest of the graph (each reset of the roughly weekly sawtooth coincides > with a reset). > > I am looking for help/suggestions in tracking down where the memory is > going. Help? Please post /proc/meminfo and if you have it, /proc/slabinfo as well.
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