Bug 16214

Summary: AB-INT PTEST: tcl ptest failure: in mutex.test
Product: [QA/Testing] Package Testing (ptest) Reporter: João Marcos Costa <joaomarcos.costa>
Component: ptestAssignee: Ross Burton <ross.burton>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: Medium CC: randy.macleod, richard.purdie
Version: unspecified   
Target Milestone: 6.1   
Hardware: x86   
OS: Multiple   
Whiteboard: AB-INT
OS type for building Yocto: --- Type of Regression: ---
Verified: Documentation change: Don't know

Description João Marcos Costa 2026-03-25 16:55:20 UTC 
https://autobuilder.yoctoproject.org/valkyrie/#/builders/61/builds/3292/steps/13/logs/stdio

Failed ptests:
{'tcl': ['tests/mutex.test']}

qemuarm64-ptest debian13-vk-arm1

---
Only running test files that match:  mutex.test
Tests began at 2026-03-18 18:48:10 +0000
mutex.test


==== mutex-condition-5 mutex condition 4/5/40000/0 FAILED
==== Contents of test case:

		lassign  [testmutex condition $nthreads $recursion $iters $yield]  enqTotal enqPerThread enqTimeouts  deqTotal deqPerThread deqTimeouts
		list  $enqTotal [fairness $totalOps $enqPerThread] $enqTimeouts  $deqTotal [fairness $totalOps $deqPerThread] $deqTimeouts
	    
---- Result was:
160000 {} 0 160000 {Thread share 17206 < 0.25 fair share 80000} 0
---- Result should have been (exact matching):
160000 {} 0 160000 {} 0
==== mutex-condition-5 FAILED


Tests ended at 2026-03-18 18:48:17 +0000
all.tcl:	Total	12	Passed	11	Skipped	0	Failed	1
Sourced 1 Test Files.
Files with failing tests: mutex.test
FAIL: tests/mutex.test
---

Full logs available at:
https://valkyrie.yocto.io/pub/non-release/20260318-109/testresults/qemuarm64-ptest/tcl.log
Comment 1 Randy MacLeod 2026-03-26 14:38:59 UTC 
Likely just skip this test.
Comment 2 Ross Burton 2026-03-26 14:39:39 UTC 
mutex.test is entirely about load balancing which feels fragile on a loaded system, we can skip it.
Comment 3 Ross Burton 2026-03-26 17:55:29 UTC 
Patch on the list.
Comment 4 Ross Burton 2026-06-11 15:03:41 UTC 
Fixed in 6c7280df18dae692e23d0e26a0fb4d2fd68bd51d.