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The trace did not contain an AllocationSampled event #134556
Description
The trace did not contain an AllocationSampled event from tracee PID 143427.
Trace file `/datadisks/disk1/work/B0580967/t/tmp6Mh6Fr.nettrace` does not contain expected events.
Tracee PID 143427 had 65 event(s) in the trace:
Universal.System/ProcessMappingMetadata: 1
Universal.System/ProcessMapping: 62
Universal.System/ProcessCreate: 1
Universal.System/ProcessExit: 1
Return code: 1
Raw output file: /datadisks/disk1/work/B0580967/w/A6350923/uploads/userevents/basic/basic/output.txt
Raw output:
BEGIN EXECUTION
/datadisks/disk1/work/B0580967/p/nativeaottest.sh /datadisks/disk1/work/B0580967/w/A6350923/e/tracing/userevents/basic/basic/ basic.dll ''
Starting record-trace: sudo -n /datadisks/disk1/work/B0580967/w/A6350923/e/tracing/userevents/common/userevents_common/record-trace --script-file /datadisks/disk1/work/B0580967/w/A6350923/e/tracing/userevents/basic/basic/basic.script --out /datadisks/disk1/work/B0580967/t/tmp6Mh6Fr.nettrace --log-path /datadisks/disk1/work/B0580967/t/tmp6Mh6Fr.log --log-filter one_collect::helpers::dotnet=debug,one_collect::perf_event=debug,one_collect::perf_event::rb=info,one_collect::helpers::exporting::formats::nettrace=debug,one_collect::helpers::exporting::os=warn,ruwind=warn,one_collect::tracefs=warn,one_collect::scripting=warn,engine=warn
record-trace started with PID: 143413
Waiting for record-trace to signal 'Recording started'...
[record-trace][stdout] Recording started. Press CTRL+C to stop.
Starting tracee process: /datadisks/disk1/work/B0580967/w/A6350923/e/tracing/userevents/basic/basic/native/basic tracee
Tracee process started with PID: 143427
Waiting for tracee process to exit...
[tracee][stdout] Tracee waiting for EventSource to be enabled via IPC...
Tracee process did not exit within the 5000ms timeout, killing it.
Tracee process exited with code 137.
Stopping record-trace with SIGINT.
Waiting for record-trace to exit...
[record-trace][stdout] Recording stopped.
[record-trace][stdout] Resolving symbols.
[record-trace][stdout] Finished recording trace.
[record-trace][stdout] Trace written to /datadisks/disk1/work/B0580967/t/tmp6Mh6Fr.nettrace
Ignored 5458 events from processes other than tracee (PID 143427).
Uploading artifact to Helix work item directory: /datadisks/disk1/work/B0580967/w/A6350923/uploads/basic.nettrace
Uploading artifact to Helix work item directory: /datadisks/disk1/work/B0580967/w/A6350923/uploads/basic.log
Expected: 100
Actual: 255
END EXECUTION - FAILED
Test Harness Exitcode is : 1
To run the test:
Set up CORE_ROOT and run.
> /datadisks/disk1/work/B0580967/w/A6350923/e/tracing/tracing/native/../../userevents/basic/basic/basic.sh
Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1602147
Build error leg or test failing: tracing/userevents/basic/basic/basic.cmd
Pull request: #134173
Error Message
DO NOT USE JSON BELOW IF THIS IS A BUILD BREAK otherwise build analysis will allow pull requests to merge that break the build worse. For a build break, do not use this issue form. Make a regular new issue.
Fill the error message using step by step known issues guidance.
{
"ErrorMessage": "The trace did not contain an AllocationSampled event",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1602147
Error message validated: [The trace did not contain an AllocationSampled event]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 9/23/2026 10:19:22 PM UTC
Report
| Build | Repository | Test | Pull Request |
|---|---|---|---|
| 1602147 | dotnet/runtime | tracing/userevents/basic/basic/basic.cmd | #134173 |
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 0 | 0 | 1 |
Activity
dotnet-policy-service commentedon Sep 23, 2026
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