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[Linux] System.InvalidOperationException: object_op ---> System.IO.IOException: The configured user limit (128) on the number of inotify instances has been

See original GitHub issue

Issue Description

I’m gettings this error on a Linux Mint 19.2 machine. cat /proc/sys/fs/inotify/max_user_watches outputs 524288.

Steps to Reproduce

Opened a large Unity project on Linux.

Expected Behavior

No errors to be thrown.

Actual Behavior

An exception is thrown.

Logs

OmniSharp log

Post the output from Output-->Starting OmniSharp server at 9/19/2019, 10:32:02 PM Target: /home/vladius/Projects/magic-coins/MagicCoins.Unity/MagicCoins.Unity.sln

OmniSharp server started with Mono 6.0.0. Path: /home/vladius/.vscode/extensions/ms-vscode.csharp-1.21.3/.omnisharp/1.34.3/omnisharp/OmniSharp.exe PID: 13308

    Starting OmniSharp on linuxmint 19.2 (x64)

    DotNetPath set to dotnet

    Located 2 MSBuild instance(s)
        1: Mono 16.0 - "/usr/lib/mono/msbuild/Current/bin"
        2: StandAlone 16.0 - "/home/vladius/.vscode/extensions/ms-vscode.csharp-1.21.3/.omnisharp/1.34.3/omnisharp/.msbuild/Current/Bin"

    Registered MSBuild instance: Mono 16.0 - "/usr/lib/mono/msbuild/Current/bin"
        CscToolExe = csc.exe
        CscToolPath = /home/vladius/.vscode/extensions/ms-vscode.csharp-1.21.3/.omnisharp/1.34.3/omnisharp/.msbuild/Current/Bin/Roslyn

    Exception thrown while calling event sinks

System.InvalidOperationException: object_op —> System.IO.IOException: The configured user limit (128) on the number of inotify instances has been reached. at System.IO.CoreFX.FileSystemWatcher.StartRaisingEvents () [0x0007b] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFX.FileSystemWatcher.StartRaisingEventsIfNotDisposed () [0x00019] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFX.FileSystemWatcher.set_EnableRaisingEvents (System.Boolean value) [0x0001d] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at (wrapper remoting-invoke-with-check) System.IO.CoreFX.FileSystemWatcher.set_EnableRaisingEvents(bool) at System.IO.CoreFXFileSystemWatcherProxy+<>c.<StartDispatching>b__9_0 (System.IO.CoreFX.FileSystemWatcher internal_fsw, System.IO.FileSystemWatcher fsw) [0x00048] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFXFileSystemWatcherProxy.Operation (System.Action4[T1,T2,T3,T4] map_op, System.Action2[T1,T2] object_op, System.Object handle, System.Action2[T1,T2] cancel_op) [0x00184] in <f62d843bc8f04cc48580b577d5f0a74e>:0 --- End of inner exception stack trace --- at System.IO.CoreFXFileSystemWatcherProxy.Operation (System.Action4[T1,T2,T3,T4] map_op, System.Action2[T1,T2] object_op, System.Object handle, System.Action2[T1,T2] cancel_op) [0x001a6] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFXFileSystemWatcherProxy.StartDispatching (System.Object handle) [0x00004] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.FileSystemWatcher.Start () [0x0001b] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.FileSystemWatcher.set_EnableRaisingEvents (System.Boolean value) [0x0003d] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at (wrapper remoting-invoke-with-check) System.IO.FileSystemWatcher.set_EnableRaisingEvents(bool) at Microsoft.AspNetCore.Razor.OmniSharpPlugin.MSBuildProjectDocumentChangeDetector.ProjectLoaded (OmniSharp.MSBuild.Notification.ProjectLoadedEventArgs loadedArgs) [0x00266] in <8c6f4eb2e16d4051ba80a599aba81c54>:0 at OmniSharp.MSBuild.ProjectManager.ProcessQueue (System.Threading.CancellationToken cancellationToken) [0x00198] in <66e377b85a4d44b3a9b82d0e2eafa257>:0 info: OmniSharp.MSBuild.ProjectManager Update project: Turbanov.Toolworks.Schweizer.Runtime.Tests [warn]: OmniSharp.MSBuild.ProjectManager Unable to resolve assembly ‘/home/vladius/Projects/magic-coins/MagicCoins.Unity/Temp/bin/Debug/Turbanov.Toolworks.Schweizer.Runtime.dll’ fail: OmniSharp.MSBuild.ProjectManager Exception thrown while calling event sinks System.InvalidOperationException: object_op —> System.IO.IOException: The configured user limit (128) on the number of inotify instances has been reached. at System.IO.CoreFX.FileSystemWatcher.StartRaisingEvents () [0x0007b] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFX.FileSystemWatcher.StartRaisingEventsIfNotDisposed () [0x00019] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFX.FileSystemWatcher.set_EnableRaisingEvents (System.Boolean value) [0x0001d] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at (wrapper remoting-invoke-with-check) System.IO.CoreFX.FileSystemWatcher.set_EnableRaisingEvents(bool) at System.IO.CoreFXFileSystemWatcherProxy+<>c.<StartDispatching>b__9_0 (System.IO.CoreFX.FileSystemWatcher internal_fsw, System.IO.FileSystemWatcher fsw) [0x00048] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFXFileSystemWatcherProxy.Operation (System.Action4[T1,T2,T3,T4] map_op, System.Action2[T1,T2] object_op, System.Object handle, System.Action2[T1,T2] cancel_op) [0x00184] in <f62d843bc8f04cc48580b577d5f0a74e>:0 --- End of inner exception stack trace --- at System.IO.CoreFXFileSystemWatcherProxy.Operation (System.Action4[T1,T2,T3,T4] map_op, System.Action2[T1,T2] object_op, System.Object handle, System.Action2[T1,T2] cancel_op) [0x001a6] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFXFileSystemWatcherProxy.StartDispatching (System.Object handle) [0x00004] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.FileSystemWatcher.Start () [0x0001b] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.FileSystemWatcher.set_EnableRaisingEvents (System.Boolean value) [0x0003d] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at (wrapper remoting-invoke-with-check) System.IO.FileSystemWatcher.set_EnableRaisingEvents(bool) at Microsoft.AspNetCore.Razor.OmniSharpPlugin.MSBuildProjectDocumentChangeDetector.ProjectLoaded (OmniSharp.MSBuild.Notification.ProjectLoadedEventArgs loadedArgs) [0x00266] in <8c6f4eb2e16d4051ba80a599aba81c54>:0 at OmniSharp.MSBuild.ProjectManager.ProcessQueue (System.Threading.CancellationToken cancellationToken) [0x00198] in <66e377b85a4d44b3a9b82d0e2eafa257>:0 info: OmniSharp.MSBuild.ProjectManager Update project: Turbanov.Toolworks.Schweizer.Runtime fail: OmniSharp.MSBuild.ProjectManager Exception thrown while calling event sinks System.InvalidOperationException: object_op —> System.IO.IOException: The configured user limit (128) on the number of inotify instances has been reached. at System.IO.CoreFX.FileSystemWatcher.StartRaisingEvents () [0x0007b] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFX.FileSystemWatcher.StartRaisingEventsIfNotDisposed () [0x00019] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFX.FileSystemWatcher.set_EnableRaisingEvents (System.Boolean value) [0x0001d] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at (wrapper remoting-invoke-with-check) System.IO.CoreFX.FileSystemWatcher.set_EnableRaisingEvents(bool) at System.IO.CoreFXFileSystemWatcherProxy+<>c.<StartDispatching>b__9_0 (System.IO.CoreFX.FileSystemWatcher internal_fsw, System.IO.FileSystemWatcher fsw) [0x00048] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFXFileSystemWatcherProxy.Operation (System.Action4[T1,T2,T3,T4] map_op, System.Action2[T1,T2] object_op, System.Object handle, System.Action2[T1,T2] cancel_op) [0x00184] in <f62d843bc8f04cc48580b577d5f0a74e>:0 --- End of inner exception stack trace --- at System.IO.CoreFXFileSystemWatcherProxy.Operation (System.Action4[T1,T2,T3,T4] map_op, System.Action2[T1,T2] object_op, System.Object handle, System.Action2[T1,T2] cancel_op) [0x001a6] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFXFileSystemWatcherProxy.StartDispatching (System.Object handle) [0x00004] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.FileSystemWatcher.Start () [0x0001b] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.FileSystemWatcher.set_EnableRaisingEvents (System.Boolean value) [0x0003d] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at (wrapper remoting-invoke-with-check) System.IO.FileSystemWatcher.set_EnableRaisingEvents(bool) at Microsoft.AspNetCore.Razor.OmniSharpPlugin.MSBuildProjectDocumentChangeDetector.ProjectLoaded (OmniSharp.MSBuild.Notification.ProjectLoadedEventArgs loadedArgs) [0x00266] in <8c6f4eb2e16d4051ba80a599aba81c54>:0 at OmniSharp.MSBuild.ProjectManager.ProcessQueue (System.Threading.CancellationToken cancellationToken) [0x00198] in <66e377b85a4d44b3a9b82d0e2eafa257>:0 info: OmniSharp.MSBuild.ProjectManager Update project: Turbanov.Toolworks.UIniverse.Editor [warn]: OmniSharp.MSBuild.ProjectManager Unable to resolve assembly ‘/home/vladius/Projects/magic-coins/MagicCoins.Unity/Temp/bin/Debug/Turbanov.Toolworks.Schweizer.Editor.dll’ [warn]: OmniSharp.MSBuild.ProjectManager Unable to resolve assembly ‘/home/vladius/Projects/magic-coins/MagicCoins.Unity/Temp/bin/Debug/Turbanov.Toolworks.Schweizer.Runtime.dll’ [warn]: OmniSharp.MSBuild.ProjectManager Unable to resolve assembly ‘/home/vladius/Projects/magic-coins/MagicCoins.Unity/Temp/bin/Debug/Turbanov.Toolworks.UIniverse.dll’ fail: OmniSharp.MSBuild.ProjectManager Exception thrown while calling event sinks System.InvalidOperationException: object_op —> System.IO.IOException: The configured user limit (128) on the number of inotify instances has been reached. at System.IO.CoreFX.FileSystemWatcher.StartRaisingEvents () [0x0007b] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFX.FileSystemWatcher.StartRaisingEventsIfNotDisposed () [0x00019] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFX.FileSystemWatcher.set_EnableRaisingEvents (System.Boolean value) [0x0001d] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at (wrapper remoting-invoke-with-check) System.IO.CoreFX.FileSystemWatcher.set_EnableRaisingEvents(bool) at System.IO.CoreFXFileSystemWatcherProxy+<>c.<StartDispatching>b__9_0 (System.IO.CoreFX.FileSystemWatcher internal_fsw, System.IO.FileSystemWatcher fsw) [0x00048] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFXFileSystemWatcherProxy.Operation (System.Action4[T1,T2,T3,T4] map_op, System.Action2[T1,T2] object_op, System.Object handle, System.Action2[T1,T2] cancel_op) [0x00184] in <f62d843bc8f04cc48580b577d5f0a74e>:0 --- End of inner exception stack trace --- at System.IO.CoreFXFileSystemWatcherProxy.Operation (System.Action4[T1,T2,T3,T4] map_op, System.Action2[T1,T2] object_op, System.Object handle, System.Action2[T1,T2] cancel_op) [0x001a6] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.CoreFXFileSystemWatcherProxy.StartDispatching (System.Object handle) [0x00004] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.FileSystemWatcher.Start () [0x0001b] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at System.IO.FileSystemWatcher.set_EnableRaisingEvents (System.Boolean value) [0x0003d] in <f62d843bc8f04cc48580b577d5f0a74e>:0 at (wrapper remoting-invoke-with-check) System.IO.FileSystemWatcher.set_EnableRaisingEvents(bool) at Microsoft.AspNetCore.Razor.OmniSharpPlugin.MSBuildProjectDocumentChangeDetector.ProjectLoaded (OmniSharp.MSBuild.Notification.ProjectLoadedEventArgs loadedArgs) [0x00266] in <8c6f4eb2e16d4051ba80a599aba81c54>:0 at OmniSharp.MSBuild.ProjectManager.ProcessQueue (System.Threading.CancellationToken cancellationToken) [0x00198] in <66e377b85a4d44b3a9b82d0e2eafa257>:0 info: OmniSharp.MSBuild.ProjectManager Update project: Turbanov.Toolworks.UIniverse [warn]: OmniSharp.MSBuild.ProjectManager Unable to resolve assembly ‘/home/vladius/Projects/magic-coins/MagicCoins.Unity/Temp/bin/Debug/Turbanov.Toolworks.Schweizer.Runtime.dll’ fail: OmniSharp.MSBuild.ProjectManager Exception thrown while calling event sinks

C# log

Empty

Environment information

VSCode version: 1.38.1 C# Extension: 1.21.3

Mono Information

OmniSharp using global mono :6.0.0

Dotnet Information

.NET Core SDK (reflecting any global.json): Version: 2.2.402 Commit: c7f2f96116

Runtime Environment: OS Name: linuxmint OS Version: 19.2 OS Platform: Linux RID: linuxmint.19.2-x64 Base Path: /usr/share/dotnet/sdk/2.2.402/

Host (useful for support): Version: 2.2.7 Commit: b1e29ae826

.NET Core SDKs installed: 2.2.402 [/usr/share/dotnet/sdk]

.NET Core runtimes installed: Microsoft.AspNetCore.All 2.2.7 [/usr/share/dotnet/shared/Microsoft.AspNetCore.All] Microsoft.AspNetCore.App 2.2.7 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.NETCore.App 2.2.7 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs: https://aka.ms/dotnet-download

Visual Studio Code Extensions

Extension	Author	Version
code-settings-sync	Shan	3.4.2
code-spell-checker	streetsidesoftware	1.7.18
code-spell-checker-russian	streetsidesoftware	0.2.2
csharp	ms-vscode	1.21.3
csharpextensions	jchannon	1.3.0
docomment	k–kato	0.1.8
doxdocgen	cschlosser	0.5.0
Doxygen	bbenoist	1.0.0
gc-excelviewer	GrapeCity	2.1.32
git-easy	bibhasdn	1.11.0
git-project-manager	felipecaputo	1.7.1
gitblame	waderyan	3.0.1
gitconfig	sidneys1	2.0.1
githd	huizhou	2.1.0
githistory	donjayamanne	0.4.6
gitlens	eamodio	9.9.3
html-css-class-completion	Zignd	1.19.0
JavaScriptSnippets	xabikos	1.7.2
jinja	wholroyd	0.0.8
MagicPython	magicstack	1.1.0
node-module-intellisense	leizongmin	1.5.0
nodejs-extension-pack	waderyan	0.1.9
npm-intellisense	christian-kohler	1.3.0
path-intellisense	christian-kohler	1.4.2
prettier-vscode	esbenp	2.2.2
psi-header	psioniq	1.8.0
python	ms-python	2019.9.34911
search-node-modules	jasonnutter	1.3.0
unity-code-snippets	kleber-swf	1.3.0
unity-debug	Unity	2.7.2
vscode-csharp-snippets	jorgeserrano	0.3.1
vscode-eslint	dbaeumer	1.9.1
vscode-languagetool	adamvoss	3.8.0
vscode-npm-script	eg2	0.3.9

Issue Analytics

State:
Created 4 years ago
Reactions:12
Comments:5

Top GitHub Comments

1reaction

awilkinscommented, May 17, 2022

This isn’t about the number of user watches : it’s about the number of inotify instances.

❯ inotify-consumers 

   INOTIFY   INSTANCES
   WATCHES      PER   
    COUNT     PROCESS   PID USER         COMMAND
------------------------------------------------------------
    1751        45      162774 awilkins    /home/awilkins/.vscode/extensions/ms-dotnettools.csharp-1.24.4-linux-x64/.omnisharp/1.38.2/bin/mono /home/awilkins/.vscode/extensions/ms-dotnettool
    2387         5      162718 awilkins    /home/awilkins/.vscode/extensions/ms-dotnettools.csharp-1.24.4-linux-x64/.razor/rzls -lsp --trace 0
    1748         1        4011 awilkins    /usr/bin/syncthing -no-browser
    1413         1        3153 awilkins    /usr/libexec/tracker-miner-fs
     542         2      162284 awilkins    /usr/share/code/code --ms-enable-electron-run-as-node /usr/share/code/resources/app/out/bootstrap-fork --type=fileWatcher
     113         6        3145 awilkins    /lib/systemd/systemd --user
      91         1        3588 awilkins    /usr/lib/unity-settings-daemon/unity-settings-daemon
      84         1        3409 awilkins    /usr/libexec/xdg-desktop-portal-gtk
      25         1        4135 awilkins    /usr/libexec/gvfsd-trash --spawner :1.4 /org/gtk/gvfs/exec_spaw/0
      25         1        3932 awilkins    /snap/snap-store/558/usr/bin/snap-store --gapplication-service
      13         1       10761 awilkins    update-notifier
      11         1        4287 awilkins    nemo-desktop
       9         1        9874 awilkins    zeitgeist-datahub
       8         2        3854 awilkins    /usr/bin/compiz
       8         1       12153 awilkins    /usr/lib/thunderbird/thunderbird
       8         1       10023 awilkins    /usr/lib/firefox/firefox
       7         1        9893 awilkins    /usr/lib/zeitgeist/zeitgeist-fts
       6         3      162082 awilkins    /usr/share/code/code --enable-crashpad gpconnect-user-portal
       6         1       14221 awilkins    /usr/bin/unity-scope-loader applications/applications.scope applications/scopes.scope commands.scope
       5         1        3584 awilkins    /usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service
       5         1        3579 awilkins    /usr/lib/x86_64-linux-gnu/indicator-messages/indicator-messages-service
       5         1        3577 awilkins    /usr/lib/x86_64-linux-gnu/indicator-datetime/indicator-datetime-service
       4         2       48517 awilkins    /usr/share/discord/Discord
       4         2       27218 awilkins    /usr/share/teams/teams --disable-namespace-sandbox --disable-setuid-sandbox
       4         2       17855 awilkins    /usr/lib/slack/slack --enable-crashpad
       4         1        3574 awilkins    /usr/lib/x86_64-linux-gnu/bamf/bamfdaemon
       4         1        3164 awilkins    /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
       3         1      162937 awilkins    /usr/lib/jvm/java-11-amazon-corretto/bin/java -jar /home/awilkins/.vscode/extensions/sonarsource.sonarlint-vscode-3.4.1/server/sonarlint-ls.jar 394
       3         1      162806 awilkins    /home/awilkins/.vscode/extensions/ms-vsliveshare.vsliveshare-1.0.5561/dotnet_modules/vsls-agent --autoexit --enableRpcInitialize --pipe vscode.7b81
       3         1      162805 awilkins    /bin/sh -c "/home/awilkins/.vscode/extensions/ms-vsliveshare.vsliveshare-1.0.5561/dotnet_modules/vsls-agent" --autoexit --enableRpcInitialize --pip
       3         1      162768 awilkins    bash /home/awilkins/.vscode/extensions/ms-dotnettools.csharp-1.24.4-linux-x64/.omnisharp/1.38.2/run -z -s /home/awilkins/gpconnect/gpconnect-user-p
       3         1      162737 awilkins    /usr/share/code/code --ms-enable-electron-run-as-node /home/awilkins/.vscode/extensions/redhat.fabric8-analytics-0.3.5/dist/server.js --node-ipc --
       3         1      162649 awilkins    /usr/share/code/code --ms-enable-electron-run-as-node /home/awilkins/.vscode/extensions/ms-azuretools.vscode-docker-1.22.0/dist/compose-language-se
       3         1      162644 awilkins    /usr/share/code/code --ms-enable-electron-run-as-node /home/awilkins/.vscode/extensions/ms-azuretools.vscode-docker-1.22.0/dist/dockerfile-language
       3         1      162631 awilkins    /usr/share/code/code --ms-enable-electron-run-as-node /home/awilkins/.vscode/extensions/redhat.vscode-yaml-1.7.0/dist/languageserver.js --node-ipc 
       3         1      162611 awilkins    /usr/share/code/code --ms-enable-electron-run-as-node /home/awilkins/.vscode/extensions/mtxr.sqltools-0.23.0/dist/languageserver.js --node-ipc --cl
       3         1      162603 awilkins    /home/awilkins/nvim/bin/nvim -N --embed -c source /home/awilkins/.vscode/extensions/asvetliakov.vscode-neovim-0.0.84/vim/vscode-options.vim --cmd s
       3         1      162216 awilkins    /usr/share/code/code --ms-enable-electron-run-as-node --inspect-port=0 /usr/share/code/resources/app/out/bootstrap-fork --type=extensionHost --skip
       3         1       14272 awilkins    /usr/share/spotify/spotify
       2         2        3605 awilkins    /usr/libexec/gnome-session-binary --systemd --builtin --session=unity
       2         2        3151 awilkins    /usr/bin/pulseaudio --daemonize=no --log-target=journal
       2         2       27464 awilkins    /usr/share/teams/teams --type=renderer --autoplay-policy=no-user-gesture-required --disable-background-timer-throttling --field-trial-handle=138244
       2         1       48561 awilkins    /usr/share/discord/Discord --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=11819744161397342864,535497400513036
       2         1        3658 awilkins    /usr/libexec/evolution-source-registry
       2         1        3325 awilkins    /usr/bin/ibus-daemon --daemonize --xim
       2         1       27262 awilkins    /usr/share/teams/teams --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=13824464907744343692,3232629623915110335
       2         1       17897 awilkins    /usr/lib/slack/slack --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-GB --service-sandbox-type=none --enable-logging --ena
       2         1      162151 awilkins    /usr/share/code/code --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-GB --service-sandbox-type=none --enable-crashpad --cr
       2         1       14305 awilkins    /usr/share/spotify/spotify --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-sandbox --l
       1         1        3896 awilkins    /usr/bin/moolticute --autolaunched
       1         1        3677 awilkins    /usr/libexec/evolution-addressbook-factory
       1         1        3668 awilkins    /usr/libexec/evolution-calendar-factory
       1         1        3377 awilkins    /usr/libexec/ibus-engine-simple
       1         1        3361 awilkins    /usr/bin/dbus-daemon --config-file=/usr/share/defaults/at-spi2/accessibility.conf --nofork --print-address 3
       1         1        3346 awilkins    /usr/libexec/ibus-portal
       1         1        3343 awilkins    /usr/libexec/ibus-x11 --kill-daemon
       1         1        3341 awilkins    /usr/libexec/ibus-extension-gtk3
       1         1        3338 awilkins    /usr/libexec/ibus-ui-gtk3
       1         1        3335 awilkins    /usr/libexec/ibus-memconf
       1         1        3317 awilkins    /usr/libexec/gvfs-afc-volume-monitor
       1         1        3312 awilkins    /usr/libexec/goa-identity-service
       1         1        3266 awilkins    /usr/libexec/goa-daemon
       1         1        3213 awilkins    /usr/libexec/gvfs-udisks2-volume-monitor
       1         1       16271 awilkins    /usr/libexec/gnome-terminal-server
       1         1      162235 awilkins    /usr/share/code/code --type=renderer --enable-crashpad --crashpad-handler-pid=162130 --enable-crash-reporter=3a871671-b332-4d29-80d8-8265188eb7ef,n
       1         1       15922 awilkins    /usr/bin/python3 /usr/bin/pasaffe
       1         1      151411 awilkins    /usr/bin/python3 /usr/bin/update-manager --no-update --no-focus-on-map
       1         1       14219 awilkins    /usr/lib/x86_64-linux-gnu/unity-lens-files/unity-files-daemon

    8365  WATCHES TOTAL COUNT

INotify instances per user (e.g. limits specified by fs.inotify.max_user_instances): 

INSTANCES    USER
-----------  ------------------
131          awilkins

❯ cat /proc/sys/fs/inotify/max_user_instances 
128

Most processes that use inotify use one instance. Even systemd only consumes 6 inotify instances.

Omnisharp is consuming 45 (and rzls is consuming another 5 - is this to do with how .NET handles file watching?).

The quick kludge is to bump max_user_instances to a higher number, but this level of consumption still looks excessive.

1reaction

lonix1commented, Dec 30, 2021

I recently discovered that when restarting vscode (usualy after a debugger crash) the plugin also crashes and remains in memory. This can be verified using ps aux | grep dotnettools, and/or a tool that counts inotify watches.

So we need to kill those processes to release the watches. Then vscode can be started normally.

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