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Omnisharp causing high load and mono whatchdog crashing

See original GitHub issue

Issue Description

On Linux I am getting a high cpu / resource usage from omnisharp when analysing large solutions (as in ~1.5 million lines of code, 65k files).

Simple tasks like saving a file will take forever. According to my task manager it is mainly mono using up that much of cpu time (the one supplied with the plugin).

After I changed a csproj file omnisharp crashe completly with this message in the log:

Could not exec mono-hang-watchdog, expected on path '/home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/etc/../bin/mono-hang-watchdog' (errno 2)
/home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/run: line 28:  2814 

Full log:

=================================================================
Native Crash Reporting
=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

=================================================================
Native stacktrace:
=================================================================
0x4bc043 - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : (null)
0x4bc3bc - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : (null)
0x465ae0 - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : (null)
0x4bb648 - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : (null)
0x7fd237afb800 - /usr/lib/libpthread.so.0 : (null)
0x7fd237611ce5 - /usr/lib/libc.so.6 : gsignal
0x7fd2375fb857 - /usr/lib/libc.so.6 : abort
0x7250c4 - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : (null)
0x707c31 - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : (null)
0x724fab - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : (null)
0x7253d3 - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : monoeg_g_logv
0x72548f - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : monoeg_g_log
0x6d15d5 - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : (null)
0x6fbbaa - /home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/bin/mono : (null)
0x7fd008d18000 - Unknown

=================================================================
Telemetry Dumper:
=================================================================
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Could not exec mono-hang-watchdog, expected on path '/home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/etc/../bin/mono-hang-watchdog' (errno 2)
/home/cobra/.vscode/extensions/ms-vscode.csharp-1.21.11/.omnisharp/1.34.12/run: line 28:  2814 Aborted                 (core dumped) "${mono_cmd}" "${omnisharp_cmd}" "$@"

Steps to Reproduce

Expected Behavior

Actual Behavior

Logs

OmniSharp log

Post the output from Output-->OmniSharp log here

C# log

Post the output from Output-->C# here

Environment information

VSCode version: 1.42.1 C# Extension: 1.21.11

Mono Information OmniSharp using built-in mono
Dotnet Information .NET Core SDK (reflecting any global.json): Version: 3.1.101 Commit: b377529961

Runtime Environment: OS Name: arch OS Version:
OS Platform: Linux RID: linux-x64 Base Path: /usr/share/dotnet/sdk/3.1.101/

Host (useful for support): Version: 3.1.1 Commit: a1388f194c

.NET Core SDKs installed: 3.1.101 [/usr/share/dotnet/sdk]

.NET Core runtimes installed: Microsoft.AspNetCore.App 3.0.2 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 3.1.1 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.NETCore.App 3.1.1 [/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
1987 annliu 0.3.1
2077-theme Endormi 1.4.3
add-reference adrianwilczynski 1.0.2
auto-using Fudge 0.7.9
better-align wwm 1.1.6
Bookmarks alefragnani 10.7.0
calmness-vsc-theme azamuddin 1.1.1
city-lights-theme yummygum 1.1.5
cloudcode googlecloudtools 1.1.2
code-settings-sync Shan 3.4.3
code-spell-checker streetsidesoftware 1.7.23
codesnap adpyke 1.0.27
csharp ms-vscode 1.21.11
csharp-grammar-extended dannymcgee 1.1.1
csharp-model-to-builder frasercrosbie 0.1.2
csharpextensions jchannon 1.3.1
Cyberpunk max-SS 1.2.5
docomment k–kato 0.1.8
dotnet formulahendry 0.0.4
dotnet-core-essentials KishoreIthadi 0.0.8
dotnet-test-explorer formulahendry 0.7.1
EditorConfig EditorConfig 0.14.4
eva-theme fisheva 0.7.9
git-graph mhutchie 1.21.0
git-tree-compare letmaik 1.8.0
gitlens eamodio 10.2.1
graphql-for-vscode kumar-harsh 1.15.3
gruvbox jdinhlife 1.4.0
horizon-theme-vscode jolaleye 2.0.2
ilspy-vscode icsharpcode 0.7.10
jinja wholroyd 0.0.8
jira-plugin gioboa 0.19.0
latex-utilities tecosaur 0.3.6
latex-workshop James-Yu 8.7.2
material-icon-theme PKief 3.9.3
material-theme zhuangtongfa 3.2.2
mdx silvenon 0.1.0
midnight-city dillonchanis 0.5.0
msbuild-project-tools tintoy 0.3.3
mssql ms-mssql 1.8.0
namespace adrianwilczynski 1.1.2
noctis liviuschera 10.26.0
output-colorizer IBM 0.1.2
prettier-vscode esbenp 3.20.0
python ms-python 2020.2.63072
python-extension-pack donjayamanne 1.6.0
rainbow-brackets 2gua 0.0.6
slime smlombardi 3.2.1
sqltools mtxr 0.21.6
supersharp craigthomas 0.1.4
synthwave-vscode RobbOwen 0.1.1
team ms-vsts 1.161.0
theme-onedark azemoh 0.5.3
theme-panda tinkertrain 1.3.0
todo-tree Gruntfuggly 0.0.167
vim vscodevim 1.12.4
vscode-csharp-snippets jorgeserrano 0.3.1
vscode-custom-css be5invis 3.0.9
vscode-django batisteo 0.19.0
vscode-docker ms-azuretools 0.10.0
vscode-kanban mkloubert 1.26.2
vscode-mdx-preview xyc 0.2.2
vscode-nxunit-test-adapter wghats 0.1.3
vscode-peacock johnpapa 3.3.1
vscode-test-explorer hbenl 2.17.0
vscode-theme-hydra juanmnl 3.1.0
vscode-typescript-tslint-plugin ms-vscode 1.2.3
vscode-versionlens pflannery 0.24.0
vscode-wakatime WakaTime 2.3.0
vscodeilviewer josephwoodward 0.0.1
vscodeintellicode VisualStudioExptTeam 1.2.5
vsliveshare ms-vsliveshare 1.0.1615
xml DotJoshJohnson 2.5.0

Issue Analytics

  • State:open
  • Created 4 years ago
  • Reactions:1
  • Comments:11 (2 by maintainers)

github_iconTop GitHub Comments

2reactions
RononDexcommented, Feb 28, 2020

Update3:

Same issue on windows, so its not platform specific and other people seem to have the same issue in my company.

For me vscode is pretty much unusable at the moment because of this

image Save operations can take anywhere from inbetween of 30s to 10minutes

0reactions
filipwcommented, Mar 13, 2020

are you sure this is not caused by another extension? there was a similar issue about “Running Save Participants” but it was determined that another extension caused it https://github.com/OmniSharp/omnisharp-vscode/issues/3561#issuecomment-584331672

Read more comments on GitHub >

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