BackgroundService_MultipleExceptions_ThrowsAggregateException is racy #125589
Description
Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1336322
Build error leg or test failing: Microsoft.Extensions.Hosting.Tests.BackgroundServiceExceptionTests.BackgroundService_MultipleExceptions_ThrowsAggregateException
Pull request: #125555
Error Message
Fill the error message using step by step known issues guidance.
{
"ErrorMessage": "Microsoft.Extensions.Hosting.Tests.BackgroundServiceExceptionTests.BackgroundService_MultipleExceptions_ThrowsAggregateException [FAIL]",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1336322
Error message validated: [Microsoft.Extensions.Hosting.Tests.BackgroundServiceExceptionTests.BackgroundService_MultipleExceptions_ThrowsAggregateException]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 3/15/2026 10:01:37 PM UTC
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 3 | 3 | 3 |
Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1336322
Error message validated: [Microsoft.Extensions.Hosting.Tests.BackgroundServiceExceptionTests.BackgroundService_MultipleExceptions_ThrowsAggregateException [FAIL]]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 3/16/2026 3:29:11 PM UTC
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 3 | 3 | 3 |
Report
| Build | Definition | Step Name | Console log | Pull Request |
|---|---|---|---|---|
| 1336130 | dotnet/runtime | Send to Helix | Log |
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 4 | 8 | 8 |