[Android] System.IO.Pipelines.Tests.PipeWriterTests.GetMemoryFlushWithACompletedReaderNoops causes the test to fail due to memory pressure #117090
Description
Build Information
Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1073115
Build error leg or test failing: System.IO.Pipelines.Tests
Affected CI jobs: android_x64_release_allsubsets_coreclr, android_x64_release_allsubsets_mono, android_arm64_release_allsubsets_mono
Commit range: 96e283d...927e973
Extracted Error Log
06-19 22:49:17.322 3955 3992 I DOTNET : [PASS] System.IO.Pipelines.Tests.PipeWriterTests.GetMemoryFlushWithACompletedReaderNoops
06-19 22:49:21.116 1727 1727 E lowmemorykiller: Kill 'net.dot.System.IO.Pipelines.Tests' (3955), uid 10121, oom_adj 0 to free 2089740kB
[22:49:21] dbug: Exit code: 0
Std out:
INSTRUMENTATION_RESULT: shortMsg=Process crashed.
INSTRUMENTATION_CODE: 0
[22:49:21] info: Short message:
Process crashed.
[22:49:21] fail: No value for 'return-code' provided in instrumentation result. This may indicate a crashed test (see log)
Error Message
{
"ErrorMessage": ["[PASS] System.IO.Pipelines.Tests.PipeWriterTests.GetMemoryFlushWithACompletedReaderNoops", "lowmemorykiller: Kill 'net.dot.System.IO.Pipelines.Tests'"],
"BuildRetry": false,
"ExcludeConsoleLog": false
}Description
The System.IO.Pipelines.Tests are crashing on Android due to the Android low memory killer terminating processes during test execution. The tests run successfully until reaching GetMemoryFlushWithACompletedReaderNoops, then get killed by the Android system when memory pressure increases, causing instrumentation to report "Process crashed" with no return code. The error pattern matches on the last passing test followed by the instrumentation result indicating a process crash.
Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1073115
Error message validated: [[PASS] System.IO.Pipelines.Tests.PipeWriterTests.GetMemoryFlushWithACompletedReaderNoops lowmemorykiller: Kill 'net.dot.System.IO.Pipelines.Tests']
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 6/27/2025 4:17:54 PM UTC
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 2 | 13 | 45 |