OOM with pktgen when transmitting on ath10k station in 4.7.10+ kernel
When I over-drive ath10k station using pktgen, system goes OOM quickly. If I catch it in time and stop pktgen, then memory is recovered over the next few seconds. I assume that there is an un-bounded queue somewhere.
But, I cannot find any queues in the mac80211 tx path that apply to ath10k (as far as I can tell).
The one possibility is the pending queues, but printing them out with debugfs shows them all zeros, and I have some code to bound them at 1000 pkts anyway.
I didn't see anything obvious in ath10k either, but I must be missing something...
pktgen transmits under the queue logic, so it will likely be ignoring any queue-stopped signals from mac80211.
Are there any other places that pkts can be queued()?
Thanks,
Ben
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Ben Greear <[email protected]> Candela Technologies Inc http://www.candelatech.com