On Fri, Sep 16, 2011 at 11:35:25PM +0200, Josef Weidendorfer wrote: > On Friday 16 September 2011, Joris van der Hoeven wrote: > > > Just a quick guess: After mmap'ing a file, you can close the > > > descriptor, but perhaps it still falls under the OS X limit until > > > a munmap is done? This would explain the connection to freetype, > > > which seems to map fonts into memory. > > > > Thanks for this possible explanation. Is there some way to know > > how many closed FDs are mapped into memory and still counted by the OS? > > This would allow me to check whether your hypothesis is right. > > In Linux, you can see the mappings of a process in /proc/<PID>/maps. > Not sure about OS-X.
This does not exist on MacOS, but I now suspect that lsof actually shows the FDs which are mapped into memory. More precisely, this seems to correspond to the lines with REG in the listing below. So I still do not understand why I am exceeding the 256 open files limit. I really would like to understand this: the resulting bug is VERY annoying (I lost several hours of work because I thought things were saved while they were not). We really need to understand what is going on and design a clean fix. Anyone can help me further? Best, --Joris Castafiore:MaGiXaLiX vdhoeven$ lsof -p 54934 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME texmacs.b 54934 vdhoeven cwd DIR 14,2 272 107792971 /Users/vdhoeven/magix/vdhoeven/seminar/MaGiXaLiX texmacs.b 54934 vdhoeven txt REG 14,2 10361176 108100663 /Users/vdhoeven/texmacs/src/TeXmacs/bin/texmacs.bin texmacs.b 54934 vdhoeven txt REG 14,2 25095600 84504684 /Library/Frameworks/QtGui.framework/Versions/4/QtGui texmacs.b 54934 vdhoeven txt REG 14,2 6220576 84504650 /Library/Frameworks/QtCore.framework/Versions/4/QtCore texmacs.b 54934 vdhoeven txt REG 14,2 978976 99068468 /opt/local/lib/libguile.17.dylib texmacs.b 54934 vdhoeven txt REG 14,2 40912 98654985 /opt/local/lib/libltdl.7.dylib texmacs.b 54934 vdhoeven txt REG 14,2 449632 98226399 /opt/local/lib/libgmp.10.dylib texmacs.b 54934 vdhoeven txt REG 14,2 621496 98432487 /opt/local/lib/libfreetype.6.dylib texmacs.b 54934 vdhoeven txt REG 14,2 96280 6198388 /opt/local/lib/libz.1.2.5.dylib texmacs.b 54934 vdhoeven txt REG 14,2 74456 97036117 /opt/local/lib/libbz2.1.0.6.dylib texmacs.b 54934 vdhoeven txt REG 14,2 1094920 98203618 /opt/local/lib/libiconv.2.dylib texmacs.b 54934 vdhoeven txt REG 14,2 54288 6162279 /opt/local/lib/libintl.8.dylib texmacs.b 54934 vdhoeven txt REG 14,2 13997424 7218861 /usr/share/icu/icudt40l.dat texmacs.b 54934 vdhoeven txt REG 14,2 150 13440 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Ink.framework/Versions/A/Resources/inkpaper.png texmacs.b 54934 vdhoeven txt REG 14,2 3144 6596 /System/Library/ColorSync/Profiles/sRGB Profile.icc texmacs.b 54934 vdhoeven txt REG 14,2 93884 84521435 /Developer/Applications/Qt/plugins/imageformats/libqgif.dylib texmacs.b 54934 vdhoeven txt REG 14,2 99048 84521436 /Developer/Applications/Qt/plugins/imageformats/libqico.dylib texmacs.b 54934 vdhoeven txt REG 14,2 77568 84521439 /Developer/Applications/Qt/plugins/imageformats/libqsvg.dylib texmacs.b 54934 vdhoeven txt REG 14,2 2572288 95505749 /private/var/folders/81/810ln2PCEHytPEy+NV2Mp++++TI/-Caches-/com.apple.LaunchServices-025501.csstore texmacs.b 54934 vdhoeven txt REG 14,2 5425538 11446 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/Extras2.rsrc texmacs.b 54934 vdhoeven txt REG 14,2 28564 10514 /System/Library/Fonts/Keyboard.ttf texmacs.b 54934 vdhoeven txt REG 14,2 1757684 10516 /System/Library/Fonts/LucidaGrande.ttc texmacs.b 54934 vdhoeven txt REG 14,2 91799 1478488 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/ecrm10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 534528 84521437 /Developer/Applications/Qt/plugins/imageformats/libqjpeg.dylib texmacs.b 54934 vdhoeven txt REG 14,2 86972 522333 /System/Library/Caches/com.apple.IntlDataCache.le.kbdx texmacs.b 54934 vdhoeven txt REG 14,2 35752 98729219 /opt/local/share/texmf-texlive-dist/fonts/type1/public/amsfonts/cm/cmr10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 32722 98729221 /opt/local/share/texmf-texlive-dist/fonts/type1/public/amsfonts/cm/cmr12.pfb texmacs.b 54934 vdhoeven txt REG 14,2 32726 98729231 /opt/local/share/texmf-texlive-dist/fonts/type1/public/amsfonts/cm/cmr8.pfb texmacs.b 54934 vdhoeven txt REG 14,2 783788 84521438 /Developer/Applications/Qt/plugins/imageformats/libqmng.dylib texmacs.b 54934 vdhoeven txt REG 14,2 858500 84504768 /Library/Frameworks/QtSvg.framework/Versions/4/QtSvg texmacs.b 54934 vdhoeven txt REG 14,2 803500 84504799 /Library/Frameworks/QtXml.framework/Versions/4/QtXml texmacs.b 54934 vdhoeven txt REG 14,2 773376 84521440 /Developer/Applications/Qt/plugins/imageformats/libqtiff.dylib texmacs.b 54934 vdhoeven txt REG 14,2 811436 7125 /System/Library/PrivateFrameworks/CoreUI.framework/Versions/A/Resources/SArtFile.bin texmacs.b 54934 vdhoeven txt REG 14,2 594556 84521411 /Developer/Applications/Qt/plugins/accessible/libqtaccessiblewidgets.dylib texmacs.b 54934 vdhoeven txt REG 14,2 144580 11448 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/HIToolbox.rsrc texmacs.b 54934 vdhoeven txt REG 14,2 32569 98729273 /opt/local/share/texmf-texlive-dist/fonts/type1/public/amsfonts/cm/cmsy10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 5946480 7120 /System/Library/PrivateFrameworks/CoreUI.framework/Versions/A/Resources/ArtFile.bin texmacs.b 54934 vdhoeven txt REG 14,2 802460 15340 /System/Library/Keyboard Layouts/AppleKeyboardLayouts.bundle/Contents/Resources/AppleKeyboardLayouts-L.dat texmacs.b 54934 vdhoeven txt REG 14,2 86464 1478486 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/ecbx10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 78601 1478496 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/ecbx12.pfb texmacs.b 54934 vdhoeven txt REG 14,2 86815 1478508 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/ecrm7.pfb texmacs.b 54934 vdhoeven txt REG 14,2 60313 1478490 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/ecss10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 88667 1478522 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/ectt7.pfb texmacs.b 54934 vdhoeven txt REG 14,2 32762 98729229 /opt/local/share/texmf-texlive-dist/fonts/type1/public/amsfonts/cm/cmr7.pfb texmacs.b 54934 vdhoeven txt REG 14,2 490410 11435 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/English.lproj/Localized.rsrc texmacs.b 54934 vdhoeven txt REG 14,2 116528 1478491 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/ecti10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 97607 1478492 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/ectt10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 93549 1478487 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/eccc10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 96899 1478565 /Users/vdhoeven/.TeXmacs/fonts/type1/math/grmn10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 36299 98729203 /opt/local/share/texmf-texlive-dist/fonts/type1/public/amsfonts/cm/cmmi10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 88294 1478516 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/ecst10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 82659 1478498 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/ecbx7.pfb texmacs.b 54934 vdhoeven txt REG 14,2 31764 98729029 /opt/local/share/texmf-texlive-dist/fonts/type1/public/amsfonts/symbols/msam10.pfb texmacs.b 54934 vdhoeven txt REG 14,2 36281 98729211 /opt/local/share/texmf-texlive-dist/fonts/type1/public/amsfonts/cm/cmmi7.pfb texmacs.b 54934 vdhoeven txt REG 14,2 88854 1478500 /Users/vdhoeven/.TeXmacs/fonts/type1/ec/eccc7.pfb texmacs.b 54934 vdhoeven txt REG 14,2 1054960 7249441 /usr/lib/dyld texmacs.b 54934 vdhoeven txt REG 14,2 204906496 92270387 /private/var/db/dyld/dyld_shared_cache_x86_64 texmacs.b 54934 vdhoeven 0r CHR 3,2 0t0 297 /dev/null texmacs.b 54934 vdhoeven 1u CHR 16,4 0t480705 615 /dev/ttys004 texmacs.b 54934 vdhoeven 2u CHR 16,4 0t480705 615 /dev/ttys004 texmacs.b 54934 vdhoeven 3u KQUEUE count=1, state=0x2 texmacs.b 54934 vdhoeven 4 PIPE 0x11072a94 16384 ->0x1d78c134 texmacs.b 54934 vdhoeven 5 PIPE 0x1d78c134 16384 ->0x11072a94 texmacs.b 54934 vdhoeven 6r REG 14,2 5425538 11446 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/Extras2.rsrc texmacs.b 54934 vdhoeven 7 PIPE 0x110713ec 16384 ->0x11070898 texmacs.b 54934 vdhoeven 8 PIPE 0x11070898 16384 ->0x110713ec texmacs.b 54934 vdhoeven 9r REG 14,2 144580 11448 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/HIToolbox.rsrc texmacs.b 54934 vdhoeven 11 PIPE 0x110704b0 16384 ->0x1d78b770 texmacs.b 54934 vdhoeven 12 PIPE 0x1d78b770 16384 ->0x110704b0 texmacs.b 54934 vdhoeven 13 PIPE 0x11071388 16384 ->0x1d78c7d8 texmacs.b 54934 vdhoeven 14 PIPE 0x1d78c7d8 16384 ->0x11071388 texmacs.b 54934 vdhoeven 15r REG 14,2 490410 11435 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/English.lproj/Localized.rsrc Castafiore:MaGiXaLiX vdhoeven$ 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