Re: [PATCH] x86: suggest running a 64bit kernel on LM capable machines with plenty memory.

From: Andi Kleen
Date: Wed Mar 11 2009 - 08:19:34 EST


> Esp on x86_64 machines with >=4G of memory its insane to run i386-PAE.

Not sure I would apply insane to 4GB, but it definitely applies
to >= 16GB, likely >= 8GB. Enough known deadlocks in this case.
I would consider >=16GB on 32bit at least a kerneloops worthy condition.

Perhaps the warnings should vary in urgency. e.g. if it's >= 16GB and
not 2:2 split we know that the system will have problems and it should
strongly suggest, otherwise weakly.

Or perhaps it should be measured in percentage of mem_map
in lowmem?

-Andi

--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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