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Nobody can know everything, but...

Nobody can know everything, but...

Posted May 1, 2012 10:05 UTC (Tue) by cortana (subscriber, #24596)
In reply to: Nobody can know everything, but... by etrusco
Parent article: Fixing the unfixable autofs ABI

AIUI the problem only crops up when i386 userland is used on an amd64 kernel. Perhaps I'm being hopelessly naive, but I'd hope that such a setup is not particularly commonplace.


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Nobody can know everything, but...

Posted May 1, 2012 10:29 UTC (Tue) by Fowl (subscriber, #65667) [Link]

Why? Seems like a perfectly reasonable situation. No bloated 64bit pointers but 4gb per process.

Nobody can know everything, but...

Posted May 1, 2012 15:09 UTC (Tue) by bdale (subscriber, #6829) [Link]

FWIW, 64 bit kernel and 32 bit userspace is what I run on my notebook.

Nobody can know everything, but...

Posted May 4, 2012 14:37 UTC (Fri) by bronson (subscriber, #4806) [Link]

How do you set that up?

Nobody can know everything, but...

Posted May 10, 2012 12:36 UTC (Thu) by nye (guest, #51576) [Link]

>How do you set that up?

aptitude install linux-image-amd64

Actually, it might even be the default these days if you install the i686 version of Debian on a 64-bit machine.

Nobody can know everything, but...

Posted May 1, 2012 16:45 UTC (Tue) by drag (subscriber, #31333) [Link]

I am running 64bit kernel with 32bit userland on a couple of my systems.

It's a very good option.

Nobody can know everything, but...

Posted May 11, 2012 13:21 UTC (Fri) by WolfWings (guest, #56790) [Link]

It's becoming the norm actually, lots of distro's do that by default or support it on their install/rescue media since it means they no longer need to build two separate userspaces, they just include two kernels to boot from on one disc, so for 99% of actual users there's only one specific disc image to download as a result.

Especially since a LOT of the time you _need_ a 32-bit userland to deal with a lot of binary packages out there or to get stuff running under WINE properly, it's easier for the "end user" images to stick to 32-bit userland even on 64-bit platforms. And even if you have a 64-bit userland you'll find it littered with various 32-bit-compat libraries.

Servers? Those are a different story, but many of those folks don't even need 32-bit compatibility so they can end up with a cruft-free pure-64-bit userland without all the 'compat' crap bolted in. So it reduces the size of the true-64-bit install media too, since there's no 32-bit cruft now.

Nobody can know everything, but...

Posted May 16, 2012 23:04 UTC (Wed) by steffen780 (guest, #68142) [Link]

IIRC that is what Linus recommends for many situations.


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