Re: tty_flip_buffer() from atomic context when low_latency==1

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> [Why this only became a problem recently, I don't know.]

In a word - multiprocessing. In 2.4 and 2.4 the tty layer locking was
very broken, in 2.6 its rather better but the side effect of that is all
the unsafe uses of low_latency now blow up and get caught instead of
working most of the time then going bang.

Alan
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