NACK! Re: [PATCH 4/4] Add vsyscalls to feature-removal-schedule.txt

From: Andi Kleen
Date: Fri Aug 12 2011 - 14:25:26 EST

Andy Lutomirski <luto@xxxxxxx> writes:

> In a couple years, we'll see how well we've done at eradicating vsyscall-using
> binaries. Hopefully we can then disable them by default. We will probably
> have to leave the option to enable them around forever.


this would break all old (old = meaning all today's) x86-64 installations.

Sorry but I don't think feature removal should be ever for anything
commonly used, especially not for anything used by nearly
EVERY binary on an old installation. We usually use it
for obscure things used rarely.

Repeat after me: BINARY COMPATIBILITY is important.
It's not a joke. It's not a toy. It's one of the basic values
of Linux.

Sorry to be honest I don't know how you can even suggest
such a thing with a straight face.


ak@xxxxxxxxxxxxxxx -- Speaking for myself only
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