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[ci-scan] JIT assertion: genActualType comparison mismatch under jitstress MinOpts #128994
Description
Build Information
Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1449260
Build error leg or test failing: linux-arm64 checked libraries-jitstress - System.Memory.Tests
Error Details
JIT assertion genActualType(cmp->gtGetOp1()) == genActualType(cmp->gtGetOp2()) fires during Morph - Global under MinOpts jitstress mode. The crash occurs while compiling System.SpanTests.ReadOnlySpanTests:Empty().
Prior KBE #128947 was closed after fix PR #128922 merged on 2026-06-03, but the assertion recurs post-fix in a different triggering method (ReadOnlySpanTests:Empty vs GitHub_19288), indicating the fix was incomplete.
Assert failure(PID 23179 [0x00005a8b], Thread: 23210 [0x5aaa]): Assertion failed 'genActualType(cmp->gtGetOp1()) == genActualType(cmp->gtGetOp2())' in 'System.SpanTests.ReadOnlySpanTests:Empty()' during 'Morph - Global' (IL size 62; hash 0x0fc27bc8; MinOpts)
exit code 134 means SIGABRT Abort.
Affected legs:
- runtime-coreclr libraries-jitstress (def 138): linux-arm64 checked - System.Memory.Tests
- runtime-coreclr libraries-jitstress (def 138): linux-arm64 checked - System.Runtime.CompilerServices.Unsafe.Tests
Error Message
{
"ErrorMessage": "genActualType(cmp->gtGetOp1()) == genActualType(cmp->gtGetOp2())",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}First build it occurred
- Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1447304
- Finished: 2026-06-03
- Occurrences in window: 2 consecutive builds (source + follow-up)
Related: #128947 (closed), #128922 (fix PR, merged)
Filed by ci-failure-scan, which scans dnceng-public outer-loop pipelines on main and converts stable failures into KBEs.
Note
🔒 Integrity filter blocked 13 items
The following items were blocked because they don't meet the GitHub integrity level.
- #5158
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #7096
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #5984
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #5101
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #5318
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #44158
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #5637
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #7231
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #5130
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #128959
search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #116358
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #86273
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved". - #128392
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
To allow these resources, lower min-integrity in your GitHub frontmatter:
tools:
github:
min-integrity: approved # merged | approved | unapproved | noneGenerated by CI Outer-Loop Failure Scanner · ● 90M · ◷
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 0 | 0 | 0 |
Activity
EgorBo commentedon Jun 4, 2026
Fixed by #128959
JulieLeeMSFT commentedon Jun 15, 2026
Fixed by #128959