runtime: TestArenaHintChainGeneration failures #82131

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1. gopherbot commented on Oct 10, 2026

   

   gopherbot

   on Oct 10, 2026

   ContributorAuthor

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   Found new dashboard test flakes for:

   #!watchflakes
   default <- pkg == "runtime" && test == "TestArenaHintChainGeneration"
   

   2026-10-09 05:34 gotip-openbsd-arm64 go@8dfc83de runtime.TestArenaHintChainGeneration (log)

   === RUN   TestArenaHintChainGeneration
       malloc_test.go:907: duplicate arena hint address 0x544000000
       malloc_test.go:915: 5 non-ascending steps in arena hint chain, want at most 1 (addrs [0x560000000 0x544000000 0x544000000 0x53c000000 0x494000000 0x490000000])
   --- FAIL: TestArenaHintChainGeneration (0.00s)
   

   — watchflakes
2. gopherbot

   added

   AutomationIssues created by gopherbot or watchflakes automation.Issues created by gopherbot or watchflakes automation.

   compiler/runtimeIssues related to the Go compiler and/or runtime.Issues related to the Go compiler and/or runtime.

   on Oct 10, 2026
3. github-project-automation

   added this to Go Compiler / Runtime / Commandon Oct 10, 2026
4. dmitshur

   added

   NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

   on Oct 10, 2026