Date: Tue, 11 Aug 2009 13:13:04 +0100 From: Anton Shterenlikht <mexas@bristol.ac.uk> To: Anton Shterenlikht <mexas@bristol.ac.uk> Cc: freebsd-ia64@freebsd.org Subject: Re: Assembler Warning: Additional NOP may be necessary to workaround Itanium processor A/B step errata Message-ID: <20090811121304.GC70402@mech-cluster241.men.bris.ac.uk> In-Reply-To: <20090805151346.GA70560@mech-cluster241.men.bris.ac.uk> References: <20090805151346.GA70560@mech-cluster241.men.bris.ac.uk>
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On Wed, Aug 05, 2009 at 04:13:46PM +0100, Anton Shterenlikht wrote: > 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? I've also seen this warning issued during build of other ports, e.g. science/paraview and math/vtk5 I did some search and mostly people seem to think this is a "benign" message. Can somebody comment on this? -- 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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