linux-kernel - Re: 2.6.32-rc3: low mem - only 378MB on x86

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Message-ID: <4ACA4C11.9060107@wpkg.org>
Date:	Mon, 05 Oct 2009 21:42:09 +0200
From:	Tomasz Chmielewski <mangoo@...g.org>
To:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.32-rc3: low mem - only 378MB on x86_32 with 64GB. Why?

> Heh.  You've really squeezed yourself into a bad situation.  Go get a
> 64-bit kernel... please.  You should be able to run 32-bit userspace
> with a 64-bit kernel.  Do you have some 32-bit kernel component that you
> are relying on?

Note that in such setups (64 bit kernels and 32 bit userspace) *some* 
software will not work correctly (perhaps it's limited to tightly 
kernel-userspace integrated software).

One example is open-iscsi - you won't run 32 bit open-iscsi userspace on 
a 64 bit kernel (at least it was impossible a couple of months ago).


-- 
Tomasz Chmielewski
http://wpkg.org
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