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kern/45706: rnd ioctl changes break old userlands
>Synopsis: rnd ioctl changes break old userlands
>Arrival-Date: Sat Dec 10 22:35:00 +0000 2011
>Originator: Taylor R Campbell <campbell+netbsd%mumble.net@localhost>
>Release: NetBSD 5.99.56
System: NetBSD oberon.local 5.99.56 NetBSD 5.99.56 (RIAMONOHACK) #0: Sun Oct 16
07:50:03 UTC 2011
The recent changes to the rnd(4) ioctls cause rndctl from old
userlands to fail. That means I can't upgrade to a new kernel
without concurrently upgrading (partially) to a new userland
and hosing my old kernel.
I know this issue is mentioned in UPDATING, but really the
issue shouldn't arise at all.
Try to boot from a new kernel. Watch in horror as the cgd
configuration at boot hangs.
Add new rnd(4) ioctl commands instead of changing the semantics
of the existing ones.
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