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g1l1t1
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Posts: 9
Joined: 10 Jan 2016, 21:03

"Too many open files in system" -- is Macs Fan Control contributing to the problem?

16 May 2017, 03:47

Today I started seeing a lot of errors in my system log saying "Too many open files in system".

A little checking with the lsof and some other tools appears to show that Macs Fan Control has over 3000 files open, mostly on /dev/null:

$ sudo lsof -n | cut -f1 -d' ' | uniq -c | sort | tail
407 HoudahSpo
407 plugin-co
507 firefox
515 DEVONthin
612 Spotlight
785 Dock
952 Finder
2085 iconservi
3202 MacsFanCo
4013 socketfil

$ sudo lsof -n | grep -i macsfanco

MacsFanCo 1301 gtackett cwd DIR 1,9 1496 2 /
MacsFanCo 1301 gtackett txt REG 1,9 1663248 65372344 /Applications/Macs Fan Control.app/Contents/MacOS/MacsFanControl
MacsFanCo 1301 gtackett txt REG 1,9 6559680 65372335 /Applications/Macs Fan Control.app/Contents/Frameworks/QtWidgets.framework/Versions/5/QtWidgets
MacsFanCo 1301 gtackett txt REG 1,9 5649680 65372291 /Applications/Macs Fan Control.app/Contents/Frameworks/QtGui.framework/Versions/5/QtGui
MacsFanCo 1301 gtackett txt REG 1,9 5992416 65372278 /Applications/Macs Fan Control.app/Contents/Frameworks/QtCore.framework/Versions/5/QtCore
MacsFanCo 1301 gtackett txt REG 1,9 69296 65372302 /Applications/Macs Fan Control.app/Contents/Frameworks/QtMacExtras.framework/Versions/5/QtMacExtras
MacsFanCo 1301 gtackett txt REG 1,9 1078448 65372313 /Applications/Macs Fan Control.app/Contents/Frameworks/QtNetwork.framework/Versions/5/QtNetwork
MacsFanCo 1301 gtackett txt REG 1,9 41568 65372267 /Applications/Macs Fan Control.app/Contents/Frameworks/QtConcurrent.framework/Versions/5/QtConcurrent
MacsFanCo 1301 gtackett txt REG 1,9 25923072 67545689 /usr/share/icu/icudt57l.dat
MacsFanCo 1301 gtackett txt REG 1,9 1560688 65372348 /Applications/Macs Fan Control.app/Contents/PlugIns/platforms/libqcocoa.dylib
MacsFanCo 1301 gtackett txt REG 1,9 360448 65372324 /Applications/Macs Fan Control.app/Contents/Frameworks/QtPrintSupport.framework/Versions/5/QtPrintSupport
MacsFanCo 1301 gtackett txt REG 1,9 886592 67514367 /System/Library/Keyboard Layouts/AppleKeyboardLayouts.bundle/Contents/Resources/AppleKeyboardLayouts-L.dat
MacsFanCo 1301 gtackett txt REG 1,9 60864 67493106 /System/Library/Extensions/SMARTLib.plugin/Contents/MacOS/SMARTLib
MacsFanCo 1301 gtackett txt REG 1,9 19328 56054335 /private/var/folders/h4/xj7dpd1j1531hy7ttt3z2t940000gn/C/com.apple.scriptmanager2.le.cache
MacsFanCo 1301 gtackett txt REG 1,9 4078205 67488615 /System/Library/CoreServices/SystemAppearance.bundle/Contents/Resources/SystemAppearance.car
MacsFanCo 1301 gtackett txt REG 1,9 3183490 67488605 /System/Library/CoreServices/SystemAppearance.bundle/Contents/Resources/Assets.car
MacsFanCo 1301 gtackett txt REG 1,9 432640 67494040 /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/Libraries/libCGInterfaces.dylib
MacsFanCo 1301 gtackett txt REG 1,9 5425538 59523570 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/Extras2.rsrc
MacsFanCo 1301 gtackett txt REG 1,9 330137 67488617 /System/Library/CoreServices/SystemAppearance.bundle/Contents/Resources/VibrantLightAppearance.car
MacsFanCo 1301 gtackett txt REG 1,9 435728 67498731 /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLRendererFloat.bundle/GLRendererFloat
MacsFanCo 1301 gtackett txt REG 1,9 697712 67543509 /usr/lib/dyld
MacsFanCo 1301 gtackett txt REG 1,9 3927824 67498729 /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine
MacsFanCo 1301 gtackett txt REG 1,9 5970752 67489641 /System/Library/Extensions/ATIRadeonX2000GLDriver.bundle/Contents/MacOS/ATIRadeonX2000GLDriver
MacsFanCo 1301 gtackett txt REG 1,9 55840 59512187 /System/Library/Fonts/Keyboard.ttf
MacsFanCo 1301 gtackett txt REG 1,9 1761608 59512240 /System/Library/Fonts/SFNSText.ttf
MacsFanCo 1301 gtackett txt REG 1,9 563895 59512195 /System/Library/Fonts/Monaco.dfont
MacsFanCo 1301 gtackett txt REG 1,9 193807 67488610 /System/Library/CoreServices/SystemAppearance.bundle/Contents/Resources/FunctionRowAppearance.car
MacsFanCo 1301 gtackett txt REG 1,9 2563430 59512182 /System/Library/Fonts/Helvetica.dfont
MacsFanCo 1301 gtackett txt REG 1,9 3181856 59512192 /System/Library/Fonts/LucidaGrande.ttc
MacsFanCo 1301 gtackett txt REG 1,9 1271388 59512230 /System/Library/Fonts/SFNSDisplay.ttf
MacsFanCo 1301 gtackett txt REG 1,9 144580 59523619 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/HIToolbox.rsrc
MacsFanCo 1301 gtackett txt REG 1,9 490410 59523558 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/English.lproj/Localized.rsrc
MacsFanCo 1301 gtackett txt REG 1,9 21118976 69520627 /private/var/folders/h4/xj7dpd1j1531hy7ttt3z2t940000gn/0/com.apple.LaunchServices-175-v2.csstore
MacsFanCo 1301 gtackett txt REG 1,9 673185792 67550855 /private/var/db/dyld/dyld_shared_cache_x86_64
MacsFanCo 1301 gtackett 0r CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 1u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 2u CHR 3,2 0x910b0c7 315 /dev/null
MacsFanCo 1301 gtackett 3r REG 1,9 5425538 59523570 /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/Resources/Extras2.rsrc
MacsFanCo 1301 gtackett 4u unix 0x8a8433b3121b5549 0t0 /var/folders/h4/xj7dpd1j1531hy7ttt3z2t940000gn/T/MACSFANCONTROL
MacsFanCo 1301 gtackett 5u unix 0x8a8433b3121b4fd1 0t0 ->0x8a8433b3121b5229
MacsFanCo 1301 gtackett 6u unix 0x8a8433b3121b5229 0t0 ->0x8a8433b3121b4fd1
MacsFanCo 1301 gtackett 7 PIPE 0x8a8433b30a66cf39 16384 ->0x8a8433b30a66b2b9
MacsFanCo 1301 gtackett 8 PIPE 0x8a8433b30a66b2b9 16384 ->0x8a8433b30a66cf39
MacsFanCo 1301 gtackett 9 PIPE 0x8a8433b30a66ccf9 16384 ->0x8a8433b30a66cff9
MacsFanCo 1301 gtackett 10 PIPE 0x8a8433b30a66cff9 16384 ->0x8a8433b30a66ccf9
MacsFanCo 1301 gtackett 11u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 12u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 13 PIPE 0x8a8433b311dd97b9 16384 ->0x8a8433b311dd84f9
MacsFanCo 1301 gtackett 14 PIPE 0x8a8433b311dd84f9 16384 ->0x8a8433b311dd97b9
MacsFanCo 1301 gtackett 15u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 16u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 17u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 18u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 19 NPOLICY
MacsFanCo 1301 gtackett 20u unix 0x8a8433b30eb76161 0t0 ->0x8a8433b30eb76229
MacsFanCo 1301 gtackett 21u systm 0t0
MacsFanCo 1301 gtackett 22u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 23u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 24u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 25u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 26u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 27u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 28u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 29u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 30u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 31u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 32u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 33u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 34u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 35u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 36u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 37u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 38u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 39u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 40u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 41u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 42u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 43u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 44u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 45u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 46u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 47u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 48u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 49u CHR 3,2 0t0 315 /dev/null
MacsFanCo 1301 gtackett 50u CHR 3,2 0t0 315 /dev/null
...
MacsFanCo 1301 gtackett 3174u CHR 3,2 0t0 315 /dev/null



Is this normal? Do you know if it might contribute to the error I was getting?
 
User avatar
Steven
CrystalIDEA Developer
Posts: 2294
Joined: 21 Dec 2009, 11:48
Location: CrystalIDEA headquarters
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Re: "Too many open files in system" -- is Macs Fan Control contributing to the problem?

17 May 2017, 21:13

What are your settings? Which hardware do you have?
viewtopic.php?f=11&t=1006
 
g1l1t1
Topic Author
Posts: 9
Joined: 10 Jan 2016, 21:03

Re: "Too many open files in system" -- is Macs Fan Control contributing to the problem?

17 Oct 2017, 23:54

Problem went away.
 
User avatar
Steven
CrystalIDEA Developer
Posts: 2294
Joined: 21 Dec 2009, 11:48
Location: CrystalIDEA headquarters
Contact:

Re: "Too many open files in system" -- is Macs Fan Control contributing to the problem?

22 Oct 2017, 11:06

Thanks for getting back in touch.

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