Date: Wed, 5 Aug 2009 16:13:46 +0100 From: Anton Shterenlikht <mexas@bristol.ac.uk> To: freebsd-ia64@freebsd.org, mm@freebsd.org Subject: Assembler Warning: Additional NOP may be necessary to workaround Itanium processor A/B step errata Message-ID: <20090805151346.GA70560@mech-cluster241.men.bris.ac.uk>
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ia64 SMP 8.0-beta2
building port graphics/ImageMagick
I see these warnings repeated quite often:
{standard input}: Assembler messages:
{standard input}:4334: Warning: Additional NOP may be necessary to workaround It
anium processor A/B step errata
in this context:
...
mv -f coders/.deps/coders_preview_la-preview.Tpo coders/.deps/coders_preview_la-
preview.Plo^M
/bin/sh ./libtool --silent --tag=CC --mode=compile cc -std=gnu99 -DHAVE_CONFI
G_H -I. -I./config -I/usr/local/include/freetype2 -I/usr/local/include -I/usr/
local/include -I/usr/local/include -I/usr/local/include/libxml2 -I/usr/local/in
clude/lqr-1 -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include -O2
-pipe -I/usr/local/include/graphviz -fno-strict-aliasing -Wall -W -MT coders/cod
ers_ps_la-ps.lo -MD -MP -MF coders/.deps/coders_ps_la-ps.Tpo -c -o coders/coders
_ps_la-ps.lo `test -f 'coders/ps.c' || echo './'`coders/ps.c^M
{standard input}: Assembler messages:^M
{standard input}:4334: Warning: Additional NOP may be necessary to workaround It
anium processor A/B step errata^M
...
mv -f magick/.deps/magick_libMagickCore_la-colorspace.Tpo magick/.deps/magick_li
bMagickCore_la-colorspace.Plo^M
/bin/sh ./libtool --silent --tag=CC --mode=compile cc -std=gnu99 -DHAVE_CONFI
G_H -I. -I./config -I./ltdl -I./ltdl -I/usr/local/include/freetype2 -I/usr/loc
al/include -I/usr/local/include -I/usr/local/include -I/usr/local/include/libxml
2 -I/usr/local/include/lqr-1 -I/usr/local/include/glib-2.0 -I/usr/local/lib/gli
b-2.0/include -O2 -pipe -I/usr/local/include/graphviz -fno-strict-aliasing -Wall
-W -MT magick/magick_libMagickCore_la-composite.lo -MD -MP -MF magick/.deps/mag
ick_libMagickCore_la-composite.Tpo -c -o magick/magick_libMagickCore_la-composit
e.lo `test -f 'magick/composite.c' || echo './'`magick/composite.c^M
magick/composite.c: In function 'CompositeImageChannel':^M
magick/composite.c:1307: warning: suggest explicit braces to avoid ambiguous 'el
se'^M
{standard input}: Assembler messages:^M
{standard input}:7404: Warning: Additional NOP may be necessary to workaround It
anium processor A/B step errata^M
{standard input}:10430: Warning: Additional NOP may be necessary to workaround I
tanium processor A/B step errata^M
{standard input}:13151: Warning: Additional NOP may be necessary to workaround I
tanium processor A/B step errata^M
I wonder if these are indicative of some serious issue?
--
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 928 8233
Fax: +44 (0)117 929 4423
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