Prevent OS core dump creation for intentionally crashing tests #113732
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There are three coreclr tests that intentionally run a crashing secondary process. While the CreateDump invocation on crash for these tests was already disabled, the OS core dump creation was still happening. In the CI this was causing test machines getting out of disk space. This change disables OS core dump creation for those tests. Close dotnet#113652
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Pull Request Overview
This PR disables OS core dump generation for intentionally crashing tests to prevent disk space issues in CI environments. Key changes include:
- Adding a new struct RLimit and a DllImport for setrlimit in Utilities.cs.
- Implementing and invoking the DisableOSCoreDump() method in multiple test files.
- Updating test entry points to call Utilities.DisableOSCoreDump() before executing intentional crashes.
Reviewed Changes
Copilot reviewed 5 out of 8 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
| src/tests/Common/CoreCLRTestLibrary/Utilities.cs | Introduces the RLimit struct, RLIMIT_CORE constant, and DisableOSCoreDump() method to disable core dumps |
| src/tests/baseservices/exceptions/stackoverflow/stackoverflow3.cs | Calls DisableOSCoreDump() in Main() to prevent OS core dump generation |
| src/tests/baseservices/exceptions/unhandled/unhandled.cs | Adds a call to DisableOSCoreDump() in Main() before throwing an exception |
| src/tests/baseservices/exceptions/stackoverflow/stackoverflow.cs | Inserts DisableOSCoreDump() call to disable OS core dump for secondary threads tests |
| src/tests/baseservices/exceptions/simple/ParallelCrash.cs | Ensures DisableOSCoreDump() is invoked before triggering parallel crashes |
Files not reviewed (3)
- src/tests/baseservices/exceptions/simple/ParallelCrashTester.csproj: Language not supported
- src/tests/baseservices/exceptions/stackoverflow/stackoverflow.csproj: Language not supported
- src/tests/baseservices/exceptions/stackoverflow/stackoverflow3.csproj: Language not supported
AaronRobinsonMSFT
approved these changes
Mar 20, 2025
jkotas
reviewed
Mar 20, 2025
* call the setrlimit explicitly on Linux / macOS only * fix missing reference to the CoreCLRTestLibrary.csproj in the ParallelCrash.csproj. I have accidentally put it into ParallelCrashTester.csproj instead.
AaronRobinsonMSFT
approved these changes
Mar 20, 2025
AaronRobinsonMSFT
approved these changes
Mar 20, 2025
Co-authored-by: Aaron Robinson <[email protected]>
AaronRobinsonMSFT
approved these changes
Mar 20, 2025
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There are three coreclr tests that intentionally run a crashing secondary process. While the CreateDump invocation on crash for these tests was already disabled, the OS core dump creation was still happening. In the CI this was causing test machines getting out of disk space. This change disables OS core dump creation for those tests.
Close #113652