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testing: TestRunParallel failures [consistent failure] #73173
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Found new dashboard test flakes for:
#!watchflakes default <- pkg == "testing" && test == "TestRunParallel"2025-04-04 17:53 gotip-linux-386-longtest go@5fc596eb testing.TestRunParallel [ABORT] (log)
=== RUN TestRunParallel panic: unaligned 64-bit atomic operation goroutine 512 gp=0xa4838c8 m=8 mp=0xa402008 [running]: panic({0x8225ba0, 0x82a4898}) /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:802 +0x144 fp=0xa534f98 sp=0xa534f44 pc=0x80bfd74 internal/runtime/atomic.panicUnaligned() /home/swarming/.swarming/w/ir/x/w/goroot/src/internal/runtime/atomic/unaligned.go:8 +0x2d fp=0xa534fa4 sp=0xa534f98 pc=0x804b01d internal/runtime/atomic.Xadd64(0xa4121a4, 0x1) /home/swarming/.swarming/w/ir/x/w/goroot/src/internal/runtime/atomic/atomic_386.s:127 +0x11 fp=0xa534fa8 sp=0xa534fa4 pc=0x804b1e1 ... created by testing.(*B).RunParallel in goroutine 492 /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:968 +0x188 goroutine 526 gp=0xa706a28 m=nil [runnable]: testing.(*B).RunParallel.func1() /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:968 fp=0xa68aff0 sp=0xa68afec pc=0x815d920 runtime.goexit({}) /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_386.s:1386 +0x1 fp=0xa68aff4 sp=0xa68aff0 pc=0x80c6591 created by testing.(*B).RunParallel in goroutine 492 /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:968 +0x1882025-04-04 21:00 gotip-linux-386-longtest go@7e60bdd7 testing.TestRunParallel [ABORT] (log)
=== RUN TestRunParallel panic: unaligned 64-bit atomic operation goroutine 446 gp=0x9264128 m=6 mp=0x9100808 [running]: panic({0x8225ba0, 0x82a48f8}) /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:802 +0x144 fp=0x90e1798 sp=0x90e1744 pc=0x80bfd74 internal/runtime/atomic.panicUnaligned() /home/swarming/.swarming/w/ir/x/w/goroot/src/internal/runtime/atomic/unaligned.go:8 +0x2d fp=0x90e17a4 sp=0x90e1798 pc=0x804b01d internal/runtime/atomic.Xadd64(0x90121a4, 0x1) /home/swarming/.swarming/w/ir/x/w/goroot/src/internal/runtime/atomic/atomic_386.s:127 +0x11 fp=0x90e17a8 sp=0x90e17a4 pc=0x804b1e1 ... created by testing.(*B).RunParallel in goroutine 499 /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:968 +0x188 goroutine 538 gp=0x91379e8 m=nil [runnable]: testing.(*B).RunParallel.func1() /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:968 fp=0x9161ff0 sp=0x9161fec pc=0x815d920 runtime.goexit({}) /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_386.s:1386 +0x1 fp=0x9161ff4 sp=0x9161ff0 pc=0x80c6591 created by testing.(*B).RunParallel in goroutine 499 /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:968 +0x1882025-04-04 22:04 gotip-linux-386-longtest go@2d050e91 testing.TestRunParallel [ABORT] (log)
=== RUN TestRunParallel panic: unaligned 64-bit atomic operation goroutine 529 gp=0x94db8c8 m=7 mp=0x9481008 [running]: panic({0x8225ba0, 0x82a49f8}) /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:802 +0x144 fp=0x94c4f98 sp=0x94c4f44 pc=0x80bfd74 internal/runtime/atomic.panicUnaligned() /home/swarming/.swarming/w/ir/x/w/goroot/src/internal/runtime/atomic/unaligned.go:8 +0x2d fp=0x94c4fa4 sp=0x94c4f98 pc=0x804b01d internal/runtime/atomic.Xadd64(0x94121a4, 0x1) /home/swarming/.swarming/w/ir/x/w/goroot/src/internal/runtime/atomic/atomic_386.s:127 +0x11 fp=0x94c4fa8 sp=0x94c4fa4 pc=0x804b1e1 ... testing_test.TestRunParallel.func1(0x950c548) /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark_test.go:82 +0xc1 fp=0x9534f8c sp=0x9534f50 pc=0x81f1e11 testing.(*B).runN(0x950c548, 0x1) /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:219 +0x177 fp=0x9534fd4 sp=0x9534f8c pc=0x8159d57 testing.(*B).run1.func1() /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:245 +0x51 fp=0x9534ff0 sp=0x9534fd4 pc=0x815a3a1 runtime.goexit({}) /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_386.s:1386 +0x1 fp=0x9534ff4 sp=0x9534ff0 pc=0x80c6591 created by testing.(*B).run1 in goroutine 461 /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:238 +0x8e2025-04-04 22:26 gotip-linux-386-longtest go@e3737714 testing.TestRunParallel [ABORT] (log)
=== RUN TestRunParallel panic: unaligned 64-bit atomic operation goroutine 547 gp=0x9981568 m=6 mp=0x987e808 [running]: panic({0x8225ba0, 0x82a49f8}) /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:802 +0x144 fp=0x98f5f98 sp=0x98f5f44 pc=0x80bfd74 internal/runtime/atomic.panicUnaligned() /home/swarming/.swarming/w/ir/x/w/goroot/src/internal/runtime/atomic/unaligned.go:8 +0x2d fp=0x98f5fa4 sp=0x98f5f98 pc=0x804b01d internal/runtime/atomic.Xadd64(0x98121a4, 0x1) /home/swarming/.swarming/w/ir/x/w/goroot/src/internal/runtime/atomic/atomic_386.s:127 +0x11 fp=0x98f5fa8 sp=0x98f5fa4 pc=0x804b1e1 ... created by testing.(*B).RunParallel in goroutine 499 /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:968 +0x188 goroutine 480 gp=0x99837a8 m=nil [runnable]: testing.(*B).RunParallel.func1() /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:968 fp=0x9999ff0 sp=0x9999fec pc=0x815d9c0 runtime.goexit({}) /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_386.s:1386 +0x1 fp=0x9999ff4 sp=0x9999ff0 pc=0x80c6591 created by testing.(*B).RunParallel in goroutine 499 /home/swarming/.swarming/w/ir/x/w/goroot/src/testing/benchmark.go:968 +0x188Change https://go.dev/cl/663015 mentions this issue:
cmd/compile: on 32-bit, bump up align for values that may contain 64-bit fields- added a commit that references this issue
on Apr 5, 2025 - locked and limited conversation to collaborators
on Apr 5, 2026
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