KMixer and System Audio Difficulties
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Registered Member 
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Using a Toshiba laptop with an i7 Q720 core, 2.6.35-02063504-generic and Kubuntu / KDE 4.6.00, KMixer uses 10% of the processor time. It causes the computer to become very slow. I kill the KMix process and use "pavucontrol". Although this works, audio is simply not as stable and reliable as was before I installed the Kubuntu's KDE beta packages. This audio problem began about a week ago with the last Kubuntu/KDE package releases.
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Administrator
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Can you reproduce the KMix CPU usage under a new user? Also, do you use a program which plays sounds often?
KDE Sysadmin
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Registered Member
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My laptop is a single user system. I can create a second user to test if you wish. However, this system starts without any sound but the KDE "hello". and simply. No change was made from perfect forgettable performance of audio until about one week ago after the latest Kubuntu / KDE beta release. At this moment, the machine works perfectly, but as I type, if i START KMix, the system will slow. Oracle VM with Windows 7 will play in half notes and half rests and the hard drive and processor never rest. Thank you. |
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Administrator
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Can you please use lsof, and other programs to see what files KMix is interacting with? htop or iotop may also be able to help here.
Please do test under a new user as well, to rule out any configuration related issues.
KDE Sysadmin
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Registered Member
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I created a new "test" user. KMix ran without problems. To remedy the problem with "my" user desktop, I deleted "/home/gary/.kde/share/apps/kmix/profiles/".
This problem originally occurred during a recent update. In an effort to assist developers, I include the following output while the problem existed: Output from KMix started in terminal: kmix(5504) ProfControl::setSubcontrols: setSubcontrols found: * kmix(5504) GUIProfile::addProfile: I have added "PulseAudio.Playback_Streams.1.default" ; Number of profiles is now 3 kmix(5504) ProfControl::setSubcontrols: setSubcontrols found: .* kmix(5504) GUIProfile::addProfile: I have added "PulseAudio.Playback_Streams.1.default" ; Number of profiles is now 3 kmix(5504) ViewBase::setMixSet: Dynamic mixer "PulseAudio::Playback_Streams:1" is NOT using Fallback GUIProfile. Checking to see if new controls are present ---------------------------------------------------- lsof output for KMix: (if the entire output is useful, I'll post it.) kmix 2714 gary cwd DIR 8,6 4096 213030 /home/gary/Documents kmix 2714 gary rtd DIR 8,6 4096 2 / kmix 2714 gary txt REG 8,6 6176 11152 /usr/bin/kmix kmix 2714 gary mem REG 0,16 67108904 1029704 /dev/shm/pulse-shm-3490571496 kmix 2714 gary mem REG 8,6 347768 2848 /usr/lib/libibus-qt.so.1.3.0 kmix 2714 gary mem REG 8,6 16012096 10606 /usr/lib/libicudata.so.42.1 kmix 2714 gary mem REG 8,6 1413488 10620 /usr/lib/libicuuc.so.42.1 kmix 2714 gary mem REG 8,6 1799848 10607 /usr/lib/libicui18n.so.42.1 kmix 2714 gary mem REG 8,6 117520 150146 /usr/lib/qt4/plugins/inputmethods/libqtim-ibus.so kmix 2714 gary mem REG 8,6 31248 160803 /usr/lib/qt4/plugins/inputmethods/libqimsw-multi.so kmix 2714 gary mem REG 8,6 84377704 131888 /var/tmp/kdecache-gary/plasma_theme_.customized1.kcache kmix 2714 gary mem REG 8,6 51712 1821 /lib/libnss_files-2.12.1.so kmix 2714 gary mem REG 8,6 43552 1744 /lib/libnss_nis-2.12.1.so kmix 2714 gary mem REG 8,6 35712 1752 /lib/libnss_compat-2.12.1.so kmix 2714 gary mem REG 8,6 18904 138192 /usr/lib/kde4/plugins/imageformats/kimg_xview.so kmix 2714 gary mem REG 8,6 68376 137336 /usr/lib/kde4/plugins/imageformats/kimg_xcf.so kmix 2714 gary mem REG 8,6 23088 138135 /usr/lib/kde4/plugins/imageformats/kimg_tga.so kmix 2714 gary mem REG 8,6 43768 139027 /usr/lib/kde4/plugins/imageformats/kimg_rgb.so kmix 2714 gary mem REG 8,6 23032 139016 /usr/lib/kde4/plugins/imageformats/kimg_ras.so kmix 2714 gary mem REG 8,6 23016 137181 /usr/lib/kde4/plugins/imageformats/kimg_psd.so kmix 2714 gary mem REG 8,6 23008 137875 /usr/lib/kde4/plugins/imageformats/kimg_pic.so kmix 2714 gary mem REG 8,6 35448 138310 /usr/lib/kde4/plugins/imageformats/kimg_pcx.so kmix 2714 gary mem REG 8,6 325912 3779 /usr/lib/libjasper.so.1.0.0 kmix 2714 gary mem REG 8,6 23160 137331 /usr/lib/kde4/plugins/imageformats/kimg_jp2.so kmix 2714 gary mem REG 8,6 26968 6126 /usr/lib/libIlmThread.so.6.0.0 kmix 2714 gary mem REG 8,6 22736 6125 /usr/lib/libImath.so.6.0.0 kmix 2714 gary mem REG 8,6 272376 6124 /usr/lib/libHalf.so.6.0.0 kmix 2714 gary mem REG 8,6 125224 4136 /usr/lib/libIex.so.6.0.0 kmix 2714 gary mem REG 8,6 789488 4286 /usr/lib/libIlmImf.so.6.0.0 kmix 2714 gary mem REG 8,6 23120 137781 /usr/lib/kde4/plugins/imageformats/kimg_exr.so kmix 2714 gary mem REG 8,6 35576 138313 /usr/lib/kde4/plugins/imageformats/kimg_eps.so kmix 2714 gary mem REG 8,6 31216 137626 /usr/lib/kde4/plugins/imageformats/kimg_dds.so kmix 2714 gary mem REG 8,6 400496 5421 /usr/lib/libtiff.so.4.3.3 kmix 2714 gary mem REG 8,6 31368 160753 /usr/lib/qt4/plugins/imageformats/libqtiff.so kmix 2714 gary mem REG 8,6 23112 143968 /usr/lib/qt4/plugins/imageformats/libqsvg.so kmix 2714 gary mem REG 8,6 211408 3503 /usr/lib/liblcms.so.1.0.18 kmix 2714 gary mem REG 8,6 560928 1894 /usr/lib/libmng.so.1.1.0.10 kmix 2714 gary mem REG 8,6 27352 160752 /usr/lib/qt4/plugins/imageformats/libqmng.so kmix 2714 gary mem REG 8,6 146032 994 /usr/lib/libjpeg.so.62.0.0 kmix 2714 gary mem REG 8,6 31480 160751 /usr/lib/qt4/plugins/imageformats/libqjpeg.so kmix 2714 gary mem REG 8,6 31296 160750 /usr/lib/qt4/plugins/imageformats/libqico.so kmix 2714 gary mem REG 8,6 31240 160749 /usr/lib/qt4/plugins/imageformats/libqgif.so kmix 2714 gary DEL REG 8,6 398201 /var/tmp/kdecache-gary/kpc/kde-icon-cache.data kmix 2714 gary DEL REG 8,6 398196 /var/tmp/kdecache-gary/kpc/kde-icon-cache.index kmix 2714 gary mem REG 8,6 10547304 162449 /var/tmp/kdecache-gary/icon-cache.kcache kmix 2714 gary mem REG 8,6 80808 14213 /usr/lib/liboxygenstyle.so.4.6.0 kmix 2714 gary mem REG 8,6 796192 161425 /usr/lib/kde4/plugins/styles/oxygen.so kmix 2714 gary mem REG 8,6 43872 524760 /usr/lib/kde4/plugins/gui_platform/libkde.so kmix 2714 gary mem REG 8,6 10432 4106 /usr/lib/libXinerama.so.1.0.0 kmix 2714 gary mem REG 8,6 39168 2070 /usr/lib/libXcursor.so.1.0.2 kmix 2714 gary mem REG 8,6 22568 2044 /usr/lib/libXfixes.so.3.1.0 kmix 2714 gary mem REG 8,6 34984 2071 /usr/lib/libXrandr.so.2.2.0 kmix 2714 gary mem REG 8,6 14392 178532 /usr/lib/gconv/UTF-16.so kmix 2714 gary mem REG 8,6 2768240 133255 /usr/lib/locale/locale-archive kmix 2714 gary mem REG 8,6 26832 57 /usr/lib/libogg.so.0.7.0 kmix 2714 gary mem REG 8,6 178424 1131 /usr/lib/libvorbis.so.0.4.4 kmix 2714 gary mem REG 8,6 2943032 1133 /usr/lib/libvorbisenc.so.2.0.7 kmix 2714 gary mem REG 8,6 302584 5090 /usr/lib/libFLAC.so.8.2.0 kmix 2714 gary mem REG 8,6 97256 1795 /lib/libnsl-2.12.1.so kmix 2714 gary mem REG 8,6 1364056 2577 /usr/lib/libxml2.so.2.7.7 kmix 2714 gary mem REG 8,6 262632 1976 /usr/lib/libstreams.so.0.7.2 kmix 2714 gary mem REG 8,6 293104 6297 /usr/lib/libnepomukquery.so.4.6.0 kmix 2714 gary mem REG 8,6 320048 4776 /usr/lib/libsopranoclient.so.1.2.0 kmix 2714 gary mem REG 8,6 1019992 4640 /usr/lib/libsoprano.so.4.3.0 kmix 2714 gary mem REG 8,6 408872 2674 /usr/lib/libXt.so.6.0.0 kmix 2714 gary mem REG 8,6 165960 3960 /lib/libexpat.so.1.5.2 kmix 2714 gary mem REG 8,6 198728 15678 /lib/libpcre.so.3.12.1 kmix 2714 gary mem REG 8,6 269104 1806 /lib/libdbus-1.so.3.5.2 kmix 2714 gary mem REG 8,6 397304 4285 /usr/lib/libsndfile.so.1.0.21 kmix 2714 gary mem REG 8,6 40720 2563 /lib/libwrap.so.0.7.6 kmix 2714 gary mem REG 8,6 22560 11407 /usr/lib/libXdmcp.so.6.0.0 kmix 2714 gary mem REG 8,6 10328 1564 /usr/lib/libXau.so.6.0.0 kmix 2714 gary mem REG 8,6 63800 1960 /usr/lib/libXi.so.6.1.0 kmix 2714 gary mem REG 8,6 27089296 18 /usr/lib/libnvidia-glcore.so.260.19.36 kmix 2714 gary mem REG 8,6 5640 393222 /usr/lib/tls/libnvidia-tls.so.260.19.36 kmix 2714 gary mem REG 8,6 350584 4447 /usr/lib/libkparts.so.4.6.0 kmix 2714 gary mem REG 8,6 18704 695 /lib/libattr.so.1.1.0 kmix 2714 gary mem REG 8,6 31208 1222 /lib/libacl.so.1.1.0 kmix 2714 gary mem REG 8,6 493352 1972 /usr/lib/libstreamanalyzer.so.0.7.2 kmix 2714 gary mem REG 8,6 247688 3017 /usr/lib/libnepomukutils.so.4.6.0 kmix 2714 gary mem REG 8,6 839384 6299 /usr/lib/libnepomuk.so.4.6.0 kmix 2714 gary mem REG 8,6 4752344 4665 /usr/lib/libQtXmlPatterns.so.4.7.0 kmix 2714 gary mem REG 8,6 609624 623 /usr/lib/libsqlite3.so.0.8.6 kmix 2714 gary mem REG 8,6 18944 274 /lib/libuuid.so.1.3.0 kmix 2714 gary mem REG 8,6 18824 4838 /usr/lib/libgthread-2.0.so.0.2600.1 kmix 2714 gary mem REG 8,6 137304 1421 /usr/lib/liblzma.so.2.0.0 kmix 2714 gary mem REG 8,6 70848 746 /lib/libbz2.so.1.0.4 kmix 2714 gary mem REG 8,6 73600 670 /usr/lib/libXext.so.6.4.0 kmix 2714 gary mem REG 8,6 306568 5568 /usr/lib/libgobject-2.0.so.0.2600.1 kmix 2714 gary mem REG 8,6 551144 1713 /usr/lib/libfreetype.so.6.6.0 kmix 2714 gary mem REG 8,6 96816 1363 /lib/libz.so.1.2.3.4 kmix 2714 gary mem REG 8,6 158736 2736 /lib/libpng12.so.0.44.0 kmix 2714 gary mem REG 8,6 101584 2704 /usr/lib/libaudio.so.2.4 kmix 2714 gary mem REG 8,6 216832 1357 /usr/lib/libfontconfig.so.1.4.4 kmix 2714 gary mem REG 8,6 921800 4554 /lib/libglib-2.0.so.0.2600.1 kmix 2714 gary mem REG 8,6 311344 756 /usr/lib/libpulsecommon-0.9.21.so kmix 2714 gary mem REG 8,6 117168 11410 /usr/lib/libxcb.so.1.1.0 kmix 2714 gary mem REG 8,6 18472 2388 /usr/lib/libxcb-atom.so.1.0.0 kmix 2714 gary mem REG 8,6 27136 4129 /usr/lib/libXtst.so.6.1.0 kmix 2714 gary mem REG 8,6 6016 4294 /usr/lib/libX11-xcb.so.1.0.0 kmix 2714 gary mem REG 8,6 31744 1657 /lib/librt-2.12.1.so kmix 2714 gary mem REG 8,6 136067 1684 /lib/libpthread-2.12.1.so kmix 2714 gary mem REG 8,6 14696 1839 /lib/libdl-2.12.1.so kmix 2714 gary mem REG 8,6 88384 15415 /lib/libgcc_s.so.1 kmix 2714 gary mem REG 8,6 980368 44 /usr/lib/libGL.so.260.19.36 kmix 2714 gary mem REG 8,6 941088 857 /usr/lib/libQtOpenGL.so.4.7.0 kmix 2714 gary mem REG 8,6 1134432 5318 /usr/lib/libqca.so.2.0.2 kmix 2714 gary mem REG 8,6 486712 4385 /usr/lib/libknewstuff3.so.4.6.0 kmix 2714 gary mem REG 8,6 152104 2504 /usr/lib/libkdewebkit.so.5.6.0 kmix 2714 gary mem REG 8,6 2955480 3780 /usr/lib/libkio.so.5.6.0 kmix 2714 gary mem REG 8,6 92968 6296 /usr/lib/libthreadweaver.so.4.6.0 kmix 2714 gary mem REG 8,6 171288 6144 /usr/lib/libkdnssd.so.4.6.0 kmix 2714 gary mem REG 8,6 3474136 856 /usr/lib/libQtDeclarative.so.4.7.0 kmix 2714 gary mem REG 8,6 261336 85 /usr/lib/libQtSql.so.4.7.0 kmix 2714 gary mem REG 8,6 2688248 6271 /usr/lib/libQtScript.so.4.7.0 kmix 2714 gary mem REG 8,6 20935408 2929 /usr/lib/libQtWebKit.so.4.7.0 kmix 2714 gary mem REG 8,6 39400 5010 /usr/lib/libXrender.so.1.3.0 kmix 2714 gary mem REG 8,6 163624 1974 /usr/lib/libdbusmenu-qt.so.2.3.4 kmix 2714 gary mem REG 8,6 373984 5619 /usr/lib/libQtSvg.so.4.7.0 kmix 2714 gary mem REG 8,6 1239376 5622 /usr/lib/libQtNetwork.so.4.7.0 kmix 2714 gary mem REG 8,6 523632 2709 /usr/lib/libattica.so.0.2.0 kmix 2714 gary mem REG 8,6 1269216 1886 /usr/lib/libX11.so.6.3.0 kmix 2714 gary mem REG 8,6 97904 931 /usr/lib/libICE.so.6.3.0 kmix 2714 gary mem REG 8,6 35032 2667 /usr/lib/libSM.so.6.0.1 kmix 2714 gary mem REG 8,6 51080 997 /lib/libudev.so.0.9.1 kmix 2714 gary mem REG 8,6 534832 1734 /lib/libm-2.12.1.so kmix 2714 gary mem REG 8,6 986888 1440 /usr/lib/libstdc++.so.6.0.14 kmix 2714 gary mem REG 8,6 2732832 6282 /usr/lib/libQtCore.so.4.7.0 kmix 2714 gary mem REG 8,6 504184 6277 /usr/lib/libQtDBus.so.4.7.0 kmix 2714 gary mem REG 8,6 3107768 10605 /usr/lib/libkdecore.so.5.6.0 kmix 2714 gary mem REG 8,6 11425096 6261 /usr/lib/libQtGui.so.4.7.0 kmix 2714 gary mem REG 8,6 18632 718 /usr/lib/libpulse-mainloop-glib.so.0.0.4 kmix 2714 gary mem REG 8,6 266816 837 /usr/lib/libpulse.so.0.12.2 kmix 2714 gary mem REG 8,6 912712 5121 /usr/lib/libasound.so.2.0.0 kmix 2714 gary mem REG 8,6 289704 1358 /usr/lib/libQtXml.so.4.7.0 kmix 2714 gary mem REG 8,6 3180104 1835 /usr/lib/libplasma.so.3.0.0 kmix 2714 gary mem REG 8,6 4792688 6302 /usr/lib/libkdeui.so.5.6.0 kmix 2714 gary mem REG 8,6 1013920 6289 /usr/lib/libsolid.so.4.6.0 kmix 2714 gary mem REG 8,6 457432 7433 /usr/lib/libphonon.so.4.4.0 kmix 2714 gary mem REG 8,6 1572232 1679 /lib/libc-2.12.1.so kmix 2714 gary mem REG 8,6 524408 1048967 /usr/lib/kde4/libkdeinit/libkdeinit4_kmix.so kmix 2714 gary mem REG 8,6 141072 1735 /lib/ld-2.12.1.so kmix 2714 gary mem REG 8,6 350212 657633 /usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-R.ttf kmix 2714 gary mem REG 8,6 1720 264520 /var/cache/fontconfig/26de28bc8622bbc1fb67fd234c21975f-le64.cache-3 kmix 2714 gary mem REG 8,6 1472 266339 /var/cache/fontconfig/c05880de57d1f5e948fdfacc138775d9-le64.cache-3 kmix 2714 gary mem REG 8,6 34040 263704 /var/cache/fontconfig/945677eb7aeaf62f1d50efc3fb3ec7d8-le64.cache-3 kmix 2714 gary mem REG 8,6 16128 265992 /var/cache/fontconfig/99e8ed0e538f840c565b6ed5dad60d56-le64.cache-3 kmix 2714 gary mem REG 8,6 9144 265989 /var/cache/fontconfig/f24b2111ab8703b4e963115a8cf14259-le64.cache-3 kmix 2714 gary mem REG 8,6 11328 263314 /var/cache/fontconfig/e383d7ea5fbe662a33d9b44caf393297-le64.cache-3 kmix 2714 gary mem REG 8,6 28584 265307 /var/cache/fontconfig/401a5dd6b567794a1d18dd9342dfa604-le64.cache-3 kmix 2714 gary mem REG 8,6 11768 272459 /var/cache/fontconfig/2cd17615ca594fa2959ae173292e504c-le64.cache-3 kmix 2714 gary mem REG 8,6 2984 265970 /var/cache/fontconfig/e7071f4a29fa870f4323321c154eba04-le64.cache-3 kmix 2714 gary mem REG 8,6 10304 264411 /var/cache/fontconfig/b5ea634b0fb353b8ea17632d1f9ef766-le64.cache-3 kmix 2714 gary mem REG 8,6 14864 264433 /var/cache/fontconfig/6eb3985aa4124903f6ff08ba781cd364-le64.cache-3 kmix 2714 gary mem REG 8,6 1640 264422 /var/cache/fontconfig/4c73fe0c47614734b17d736dbde7580a-le64.cache-3 kmix 2714 gary mem REG 8,6 2984 264354 /var/cache/fontconfig/0d8c3b2ac0904cb8a57a757ad11a4a08-le64.cache-3 kmix 2714 gary mem REG 8,6 1600 264334 /var/cache/fontconfig/6a53c69dea097a2d716e069445527da8-le64.cache-3 kmix 2714 gary mem REG 8,6 17912 264331 /var/cache/fontconfig/062808c12e6e608270f93bb230aed730-le64.cache-3 kmix 2714 gary mem REG 8,6 22520 264327 /var/cache/fontconfig/a755afe4a08bf5b97852ceb7400b47bc-le64.cache-3 kmix 2714 gary mem REG 8,6 19536 267453 /var/cache/fontconfig/515ca1ebc4b18308bea979be5704f9db-le64.cache-3 kmix 2714 gary mem REG 8,6 35032 263852 /var/cache/fontconfig/6d41288fd70b0be22e8c3a91e032eec0-le64.cache-3 kmix 2714 gary mem REG 8,6 11648 269630 /var/cache/fontconfig/de156ccd2eddbdc19d37a45b8b2aac9c-le64.cache-3 kmix 2714 gary mem REG 8,6 63840 263851 /var/cache/fontconfig/0f34bcd4b6ee430af32735b75db7f02b-le64.cache-3 kmix 2714 gary mem REG 8,6 186864 267242 /var/cache/fontconfig/365b55f210c0a22e9a19e35191240f32-le64.cache-3 kmix 2714 gary mem REG 8,6 37184 263847 /var/cache/fontconfig/d52a8644073d54c13679302ca1180695-le64.cache-3 kmix 2714 gary mem REG 8,6 12160 263850 /var/cache/fontconfig/d60319d88cac85ba9e1a07bd06cfbb8c-le64.cache-3 kmix 2714 gary mem REG 8,6 2080 267619 /var/cache/fontconfig/4794a0821666d79190d59a36cb4f44b5-le64.cache-3 kmix 2714 gary mem REG 8,6 27296 263775 /var/cache/fontconfig/089dead882dea3570ffc31a9898cfb69-le64.cache-3 kmix 2714 gary mem REG 8,6 41880 263123 /var/cache/fontconfig/e13b20fdb08344e0e664864cc2ede53d-le64.cache-3 kmix 2714 gary mem REG 8,6 13304 264833 /var/cache/fontconfig/7ef2298fde41cc6eeb7af42e48b7d293-le64.cache-3 kmix 2714 gary mem REG 8,6 26048 146667 /usr/lib/gconv/gconv-modules.cache kmix 2714 gary 0r FIFO 0,8 0t0 11054 pipe kmix 2714 gary 1w REG 8,6 8522177 131170 /home/gary/.xsession-errors kmix 2714 gary 2w REG 8,6 8522177 131170 /home/gary/.xsession-errors kmix 2714 gary 3r FIFO 0,8 0t0 13863 pipe kmix 2714 gary 4w FIFO 0,8 0t0 13863 pipe kmix 2714 gary 5u unix 0xffff88010ae4b0c0 0t0 13855 socket kmix 2714 gary 6r FIFO 0,8 0t0 13864 pipe kmix 2714 gary 7w FIFO 0,8 0t0 13864 pipe kmix 2714 gary 8u unix 0xffff880037acd140 0t0 13865 socket kmix 2714 gary 9u unix 0xffff880037acd7c0 0t0 13868 socket kmix 2714 gary 10r 0000 0,9 0 4050 anon_inode kmix 2714 gary 11r 0000 0,9 0 4050 anon_inode kmix 2714 gary 12r FIFO 0,8 0t0 13917 pipe kmix 2714 gary 13w FIFO 0,8 0t0 13917 pipe kmix 2714 gary 14u unix 0xffff880073a21d40 0t0 1029705 socket kmix 2714 gary 15u unix 0xffff880073a22080 0t0 1029636 socket kmix 2714 gary 16u sock 0,6 0t0 1029640 can't identify protocol kmix 2714 gary 17r 0000 0,9 0 4050 anon_inode kmix 2714 gary 18u unix 0xffff880073a23740 0t0 1029641 socket kmix 2714 gary 19r FIFO 0,8 0t0 1029642 pipe kmix 2714 gary 20w FIFO 0,8 0t0 1029642 pipe |
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