In the USE flags mmx and mmxext is set, but after compilation mplayer says that mmx and mmx2 is disabled. as mplayer was compiled: [ebuild R ] media-video/mplayer-1.0_pre6-r2 -3dfx -3dnow -3dnowext +X +aalib +alsa (-altivec) -arts +avi +bidi -cdparanoia -debug -dga -directfb +divx4linux -doc -dts -dv -dvb +dvd +dvdread -edl +encode -esd +fbcon -ggi -gif +gtk -i8x0 +ipv6 -jack -joystick +jpeg +libcaca -lirc -live -lzo +mad -matroska -matrox +mmx +mmxext +mpeg -mythtv +nas +nls +nvidia +oggvorbis +opengl -oss +png -real +rtc -samba -sdl +sse -sse2 +svga -tga +theora +truetype -v4l -v4l2 -xanim -xinerama +xmms +xv +xvid +xvmc what mplayer says: MMX supported but disabled MMX2 supported but disabled CPUflags: MMX: 0 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0 x86 CPU - with the following extensions: SSE (it might look a bit different, cause I had the last line in Hungarian, and I did not change the locale for this :D) when the ebuild runs configure it says: Detected operating system: Linux Detected host architecture: i386 Checking for cc version ... 3.4, ok Checking for host cc ... cc Checking for CPU vendor ... GenuineIntel (6:8:10) Checking for CPU type ... Pentium III (Coppermine) Checking for GCC & CPU optimization abilities ... pentium3 Checking for kernel support of mmx ... yes Checking for kernel support of mmx2 ... yes Checking for kernel support of sse ... yes Checking for mtrr support ... yes Checking for assembler support of -pipe option ... yes Byte order: little-endian Optimizing for: pentium3 mmx mmx2 sse mtrr when mmxext is set I get this warning before configure also: * You have mmxext support enabled but your processor doesn't * Seem to support it! You might be cross compiling or do not have /proc filesystem * enabled. If either is the case, set CROSSCOMPILE to 1 to disable this warning. But p3 supports it, so I don't really understand it. And configure runs like quoted above, and states that it is optimizing for mmx, mmx2 and sse Reproducible: Always Steps to Reproduce: Portage 2.0.51.19 (default-linux/x86/2004.3, gcc-3.4.3-20050110, glibc-2.3.4.20050125-r1, 2.6.9-ck3 i686) ================================================================= System uname: 2.6.9-ck3 i686 Pentium III (Coppermine) Gentoo Base System version 1.6.10 Python: dev-lang/python-2.3.5 [2.3.5 (#1, Feb 18 2005, 00:17:45)] ccache version 2.4 [enabled] dev-lang/python: 2.3.5 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.9.5, 1.5, 1.6.3, 1.8.5-r3, 1.7.9-r1, 1.4_p6 sys-devel/binutils: 2.15.92.0.2-r7 sys-devel/libtool: 1.5.14 virtual/os-headers: 2.6.8.1-r2 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-march=pentium3 -O2 -pipe -fomit-frame-pointer -fforce-addr -falign-functions=4 -fprefetch-loop-arrays" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=pentium3 -O2 -pipe -fomit-frame-pointer -fforce-addr -falign-functions=4 -fprefetch-loop-arrays" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms" GENTOO_MIRRORS="http://gentoo.inode.at/ http://trumpetti.atm.tut.fi/gentoo/ http://ftp.snt.utwente.nl/pub/os/linux/gentoo http://gentoo.math.bme.hu ftp://ftp2.gentoo.hu/gentoo/" LANG="hu_HU.UTF-8" LC_ALL="hu_HU.UTF-8" MAKEOPTS="-j1" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="x86 X aalib acl acpi adns alsa apm atlas audiofile avi bash-completion bidi bindist bitmap-fonts bonobo caps cdr crypt cscope cups curl dedicated divx4linux dvd emboss encode ethereal evo fam fbcon fdftk fftw firebird flac flash font-server foomaticdb fortran freetds gb gd gdbm gif ginac gphoto2 gpm gstreamer gtk gtk2 gtkhtml ifc imagemagick imap imlib ipv6 java jikes jpeg lcms ldap lesstif libg++ libgda libwww mad maildir mcal memlimit mikmod mmx motif mozilla mp3 mpeg mpi mule nas ncurses nhc98 nls nocardbus nocd nptl odbc offensive oggvorbis opengl pam pdflib perl plotutils png ppds prelude python quicktime readline ruby sasl slang slp snmp speex spell sqlite sse ssl svg svga tcltk tcpd theora threads tiff truetype truetype-fonts type1-fonts unicode usb videos wmf xface xml xml2 xmms xv xvid zlib linguas_hu linguas_en linguas_it" Unset: ASFLAGS, CBUILD, CTARGET, LDFLAGS
Please post the output of grep flags /proc/cpuinfo Also note that "supported bug disabled" probably is because sse has more priority than the two before.
same situation (no mmx enabled) on my p4: $ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Pentium(R) 4 CPU 2.40GHz stepping : 7 cpu MHz : 2430.465 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr bogomips : 4800.51 $ emerge info Portage 2.0.51.19 (default-linux/x86/2004.3, gcc-3.3.5, glibc-2.3.4.20041102-r1, 2.6.11-gentoo-r4 i686) ================================================================= System uname: 2.6.11-gentoo-r4 i686 Intel(R) Pentium(R) 4 CPU 2.40GHz Gentoo Base System version 1.4.16 Python: dev-lang/python-2.3.4-r1 [2.3.4 (#1, Mar 2 2005, 22:57:00)] dev-lang/python: 2.3.4-r1 sys-devel/autoconf: 2.59-r6, 2.13 sys-devel/automake: 1.7.9-r1, 1.8.5-r3, 1.5, 1.4_p6, 1.6.3, 1.9.4 sys-devel/binutils: 2.15.92.0.2-r1 sys-devel/libtool: 1.5.10-r4 virtual/os-headers: 2.6.8.1-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-march=pentium4 -O2 -fomit-frame-pointer -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=pentium4 -O2 -fomit-frame-pointer -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms" GENTOO_MIRRORS="http://mirror.datapipe.net/gentoo ftp://gentoo.mirrors.pair.com http://gentoo.ccccom.com" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage" USE="x86 X alsa avi cdr cups divx4linux dvd dvdr encode fbcon gif gpm gtk gtk2 jpeg mad mikmod mmx mpeg ncurses nls nptl oggvorbis opengl oss png python readline sdl slang spell sse sse2 ssl tcpd truetype xml2 xprint xv xvid zlib" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS
re: Diego's comment: "Also note that "supported but disabled" probably is because sse has more priority than the two before." No! The ebuild logic selected to use the configure flags: --disable-mmx and --disable-mmx2. That is the reason mplayer states that the feature is disabled at startup messages.
Ok i'm not able to try this out as seems like on amd64 mplayer doesn't care at all of simd stuff (for the ones which doesn't know what simd is, http://en.wikipedia.org/wiki/SIMD ). Anyway, as comment #2 states, seems like portage's cpuflag detection is right, as /proc/cpuinfo flags are the flags reported by the CPU, if you haven't some flags it's probable that the cpu isn't aware of those instruction sets (not sure about it, but maybe you need to set the correct processor type on kernel configuration). About the found but disabled, I'm still thinking that earliest simd instruction sets shades older (so sse will be preferred to mmx and sse2 will be preferred to sse for example).
I want to be clear about this... I have configured mplayer and compiled it a hundred times outside of portage..... On my box, the mplayer configure will not explicitly disable mmx/mmx2. When I run mplayer, those mmx/mmx2 flags are on (1) and there are no problems whatsoever, and no messages from mplayer about "supported but disabled." Clearly, there's some logic in the portage ebuild that is explicitly econf'ing --disable-mmx and --disable-mmx2.
I noticed the same problem (mplayer-1.0_pre6-r2). I suppose here's the incriminated code (in the ebuild): [417] if has_pic && use x86 || use !mmx; then myconf="${myconf} --disable-mmx" else myconf="${myconf} --enable-mmx" fi if has_pic && use x86 || use !mmxext; then myconf="${myconf} --disable-mmx2" else myconf="${myconf} --enable-mmx2" fi [429] I tried to edit it and enable both mmx and mmx2 anyways, it worked fine, compilation, prelinking and execution. After a quick search on Google, mmx and pic seemed to be mutually exclusive for non-x86 in the postprocessing library from ffmpeg, I wonder if there's some relation with this... I have a Pentium3, 2.4.28-gentoo-r8 : $ cat /proc/cpuinfo |grep flags flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse Since MPlayer detects mmx2, I suppose the check done by Portage for mmxext (if it's the same as mmx2) isn't correct (perhaps only for 2.4.x kernels ?).
1st try: /etc/make.conf USE="mmx mmxext 3dnow 3dnowext..." 2nd try: #USE="mmx mmxext 3dnow 3dnowext.." emerge mplayer 3rd try: /etc/portage/package.use media-video/mplayer network real live mmx mmx2 3dnow 3dnowex mtrr always view: bash-2.05b# emerge -pv mplayer These are the packages that I would merge, in order: Calculating dependencies ...done! [ebuild R ] media-video/mplayer-1.0_pre6-r2 -3dfx +3dnow +3dnowext +X +aalib +alsa (-altivec) -arts +avi -bidi* -cdparanoia* -debug -dga -directfb -divx4linux -doc* -dts* -dv -dvb -dvd -dvdread -edl* +encode +esd -fbcon -ggi +gif +gtk -i8x0 -ipv6 +jack -joystick +jpeg -libcaca -lirc +live -lzo* +mad -matroska* -matrox +mmx +mmxext +mpeg -mythtv -nas +nls -nvidia* +oggvorbis +opengl +oss +png +real -rtc* -samba +sdl -sse -sse2 +svga -tga +theora +truetype -v4l -v4l2 -xanim +xinerama +xmms +xv +xvid -xvmc* 0 kB but this not cause effects, finally... manually configure says: Compile with extension: mmx mmx2 3dnow 3dnowext mtrr ..or something like this.. after emerge finalize mplayer says: bash-2.05b# mplayer MPlayer 1.0pre6-3.3.5 (C) 2000-2004 MPlayer Team CPU: Advanced Micro Devices Athlon K7 (Family: 6, Stepping: 2) Detected cache-line size is 64 bytes MMX supported but disabled MMX2 supported but disabled 3DNow supported but disabled 3DNowExt supported but disabled CPUflags: MMX: 0 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0 why? --ArYiX
I downgraded to mplayer-1.0-pre6-r1 in flavor mplayer-1.0-pre6-r2 mmx, mmxext, 3dnow, 3dnowext, apears good again!!! the problem is an ebuild for mplayer-1.0-pre6-r2? --ArYiX
Diego: if you look at the ebuild, then you can see, that for amd64 the used simd is not changeable, it is fixed there, in the ebuild. My CPUs: falcone@nido ~ $ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 10 cpu MHz : 865.330 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1699.84 processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 10 cpu MHz : 865.330 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1728.51
Hi, the same for Athlon. If I disabled 3dnowex flag, the mplayer config script will find all extensions and say "yes", but the compiled binary shows them disabled, and video play will be slow. If I enable 3dnowex flag, it will be ok, but the ebuild says at the beginning that it is not supported on my CPU. /proc/cpuinfo shows that my Athlon CPU support mmx, mmxext, 3dnow AND 3dnowext. Sipi
actually, this mmx/mmxext bug should now be closed. The mmx and mmxext USE flags will activate both mmx and mmx2 in mplayer now (latest -r2 ebuild). The 3dnow flags I cannot comment on and perhaps require a new bug report or belong in another existing bug report somewhere. Again, this bug, as originally documented, appears to have been fixed from my perpective.
the warning will be removed in the near future and any bug related to misuse of cpu optimization will be marked as invalid. I'm not sure if that is the best procedure but I think that this could be fine for most of you. tell me if I'm wrong and I'll keep the warning and I'll try to fix it
Luca, which warning are you referring to: the flag-o-matic warning about use flags not matching /proc/cpuinfo ? That's a different issue really.... This was a legitimate bug report about mmx/mmx2 functionality not being activated in mplayer, despite seemingly valid use flags (mmx/mmxext). As I said, above, that specific problem appears to have been fixed. Your comment about the warning seems to be unrelated.
*** Bug 91352 has been marked as a duplicate of this bug. ***
is the issue still valid?
it's closed to my satisfaction. this bug was also marked as a duplicate and that duplicate is resolved.
oh i see: bug 86318 and bug 91352 are marked as duplicates of each other...
Fixed then
What exactly happened here? It says the issue is fixed, but I still get the: * You have mmxext support enabled but your processor doesn't * Seem to support it! You might be cross compiling or do not have /proc filesystem * enabled. If either is the case, set CROSSCOMPILE to 1 to disable this warning. Well, if I emerge with USE=-mmxext then mplayer complains that the cpu supports it but it's not compiled in.
heavens please don't rehash this again. this is not a problem. your /proc/cpuflags are probably mmx, sse and sse2, right? the ebuild does not "see" an mmxext flag in your cpuflags, but the sse support implies it -- so ignore this warning. use the use flags mmx, mmxext, sse and sse2 and be done with it. forget the warning at build time.
