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kern/37809: new version of dev/ic/gem.c doesn't work on Apple Powerbook5,8
>Synopsis: new version of dev/ic/gem.c doesn't work on Apple Powerbook5,8
>Arrival-Date: Sat Jan 19 16:45:00 +0000 2008
>Originator: Aymeric Vincent
rev 1.68 of dev/ic/gem.c introduces a regression which prevents gem from
correctly working on my powerbook. It still works fine on my iBook.
Apparently, no interrupt is received when a packet arrives on the interface.
Packets are sent correctly.
$ ping -n <some IP>
in another terminal:
$ systat vm 1
see irq of gem0 being triggered only once per second instead of twice when
dev/ic/gem.c is reverted to 1.67 and works properly.
Also see that the leds on the switch blink at each ping.
# ifconfig gem0 debug
also shows that tx is working properly, but that the irq for reception is never
unfortunately, I read the whole diff but it's too big for me to understand in a
Reverting to dev/ic/gem.c to 1.67 makes my gem adapter work.
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