However, typical Openwrt devices are headless, no video, no audio, no keyboard, so there aren't any "real user entropy" sources, which are supposed serve as the replacement. Majority of the developers decided to remove network drivers from random pool, and the r23982 is probably a delayed application of that design principle. There was quite much discussion in the Linux development community in 2008-2009 about removing network drivers as randomness sources, as theoretically somebody might figure out a way to affect the generated randomness through them (by sending carefully timed packets). The regression is probably due to r23982 (done after rc3), which removed the network device driver as an interrupt entropy source. I have a tp-link wr1043n that does not show this problem.
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