linux-kernel - RE: ia64 allmodconfig on current mainline

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Message-ID: <57C9024A16AD2D4C97DC78E552063EA30844B247@orsmsx505.amr.corp.intel.com>
Date:	Tue, 12 Aug 2008 17:21:09 -0700
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	"linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: ia64 allmodconfig on current mainline

> /opt/crosstool/gcc-3.4.5-glibc-2.3.6/ia64-unknown-linux-gnu/bin/ia64-unknown-linux-gnu-ld: section .data [0000000004ea0000 -> 0000000004f656e7] overlaps section .data.percpu [0000000004e90000 -> 0000000004ea0d17]

This means there is too much DEFINE_PER_CPU() going on.  Current
ia64 limit for the sum of all per cpu objects is 64K.  For a
build using defconfig we seem to be close (56K/64K ... look for
the address of __per_cpu_end and see how close it is to the top
of the address space: 0xffffffffffffffff).

-Tony
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