linux-kernel - Re: [Ksummit-discuss] 2038 Kernel Summit Discussion Fodder

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Message-ID: <1407895613.3017.138.camel@deadeye.wl.decadent.org.uk>
Date:	Wed, 13 Aug 2014 03:06:53 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	John Stultz <john.stultz@...aro.org>
Cc:	ksummit-discuss@...ts.linuxfoundation.org,
	"Joseph S. Myers" <joseph@...esourcery.com>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [Ksummit-discuss] 2038 Kernel Summit Discussion Fodder

On Tue, 2014-08-12 at 17:01 -0700, John Stultz wrote:
[...]
> The downsides here are many. The distros will probably hate this idea,

I certainly hate the idea of adding another 32-bit port to Debian.
I think that it's OK for traditional distros to say 'just upgrade to
64bit' while you solve the problem for 32-bit embedded systems where
there's probably little demand for supporting multiple ABIs at once.

>  as it requires rebuilding the world, and maintaining another legacy
> architecture support. I’m also not completely sure how robust
> multi-arch packaging is in the face of having to handle 3-4
> architectures on one system.

dpkg multiarch covers this just fine, while I believe RPM is limited to
biarch.

> On the kernel side, it also adds more complexity, where we have to add
> even more complex compat support for 64bit systems to handle all the
> various 32bit applications possible.
[...]

Didn't we need to do this already to support x32?  Have compat ioctls
involving time been botched?

Ben.

-- 
Ben Hutchings
Humans are not rational beings; they are rationalising beings.

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