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cpu stall during wifi transfers for long duration #19
Etn40ff on #ci20 mentioned cpu stalling after a while.
Traced it to WiFi possibly.
Long file download triggers it reproducibly on 3.16 and 3.18.
iperf triggers it as well.
rootfs is on SD card.
3.18 completely stalls without any error messages.
But 3.16 does give error messages. On ttyS0.
Some race condition/locking issue perhaps.