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gopherbot opened this issue Feb 5, 2025 · 9 comments
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cmd/internal/testdir: Test/fixedbugs/issue20174.go failures #71564

gopherbot opened this issue Feb 5, 2025 · 9 comments
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NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

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@gopherbot
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gopherbot commented Feb 5, 2025 •
edited by ianlancetaylor
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#!watchflakes
default <- `panic: inconsistent reference counts`

Issue created automatically to collect these failures.

Example (log):

=== RUN   Test/fixedbugs/issue20174.go
=== PAUSE Test/fixedbugs/issue20174.go
=== CONT  Test/fixedbugs/issue20174.go
    testdir_test.go:147: exit status 2
        panic: inconsistent reference counts
        
        goroutine 17 gp=0xc000204380 m=4 mp=0xc000080008 [running]:
        panic({0x669460?, 0x86a5c0?})
        	runtime/panic.go:806 +0x188 fp=0xc000100e58 sp=0xc000100d98 pc=0x8f538
        os.(*Process).handleTransientAcquire(0x0?)
...
        runtime.selectgo(0xc000053798, 0xc000053780, 0x0?, 0x0, 0x0?, 0x1)
        	runtime/select.go:351 +0x7d4 fp=0xc000053728 sp=0xc0000535d8 pc=0x6a964
        runtime.ensureSigM.func1()
        	runtime/signal_unix.go:1085 +0x1e8 fp=0xc0000537c0 sp=0xc000053728 pc=0x89c48
        runtime.goexit({})
        	runtime/asm_ppc64x.s:1022 +0x4 fp=0xc0000537c0 sp=0xc0000537c0 pc=0x97684
        created by runtime.ensureSigM in goroutine 1
        	runtime/signal_unix.go:1068 +0x118
        
--- FAIL: Test/fixedbugs/issue20174.go (1.60s)

— watchflakes
@gopherbot gopherbot added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Feb 5, 2025
@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "cmd/internal/testdir" && test == "Test/fixedbugs/issue20174.go"
2025-02-05 01:20 gotip-linux-ppc64le_power9 go@a1ea78c4 cmd/internal/testdir.Test/fixedbugs/issue20174.go (log) 
=== RUN   Test/fixedbugs/issue20174.go
=== PAUSE Test/fixedbugs/issue20174.go
=== CONT  Test/fixedbugs/issue20174.go
    testdir_test.go:147: exit status 2
        panic: inconsistent reference counts
        
        goroutine 17 gp=0xc000204380 m=4 mp=0xc000080008 [running]:
        panic({0x669460?, 0x86a5c0?})
        	runtime/panic.go:806 +0x188 fp=0xc000100e58 sp=0xc000100d98 pc=0x8f538
        os.(*Process).handleTransientAcquire(0x0?)
...
        runtime.selectgo(0xc000053798, 0xc000053780, 0x0?, 0x0, 0x0?, 0x1)
        	runtime/select.go:351 +0x7d4 fp=0xc000053728 sp=0xc0000535d8 pc=0x6a964
        runtime.ensureSigM.func1()
        	runtime/signal_unix.go:1085 +0x1e8 fp=0xc0000537c0 sp=0xc000053728 pc=0x89c48
        runtime.goexit({})
        	runtime/asm_ppc64x.s:1022 +0x4 fp=0xc0000537c0 sp=0xc0000537c0 pc=0x97684
        created by runtime.ensureSigM in goroutine 1
        	runtime/signal_unix.go:1068 +0x118
        
--- FAIL: Test/fixedbugs/issue20174.go (1.60s)

— watchflakes

@gopherbot
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Change https://go.dev/cl/646576 mentions this issue: os: avoid inconsistent reference counts panic

@ianlancetaylor ianlancetaylor marked this as a duplicate of #71569 Feb 5, 2025
@ianlancetaylor ianlancetaylor mentioned this issue Feb 5, 2025
Closed
@ianlancetaylor ianlancetaylor marked this as a duplicate of #71570 Feb 5, 2025
@ianlancetaylor ianlancetaylor mentioned this issue Feb 5, 2025
Closed
@ianlancetaylor ianlancetaylor marked this as a duplicate of #71571 Feb 5, 2025
@ianlancetaylor ianlancetaylor mentioned this issue Feb 5, 2025
Closed
@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
default <- `panic: inconsistent reference counts`
2025-02-05 05:26 gotip-linux-riscv64 go@842e4b52 cmd/internal/testdir.Test/fixedbugs/issue66663.go (log) 
=== RUN   Test/fixedbugs/issue66663.go
=== PAUSE Test/fixedbugs/issue66663.go
=== CONT  Test/fixedbugs/issue66663.go
    testdir_test.go:147: exit status 2
        panic: inconsistent reference counts
        
        goroutine 7 gp=0x3d34001a40 m=3 mp=0x3d34055008 [running]:
        panic({0x5f9380?, 0x7f7340?})
        	runtime/panic.go:806 +0x13c fp=0x3d340516f8 sp=0x3d34051650 pc=0x8248c
        os.(*Process).handleTransientAcquire(0x0?)
...
        runtime.selectgo(0x3d34050fb0, 0x3d34050f98, 0x0?, 0x0, 0x0?, 0x1)
        	runtime/select.go:351 +0x6f8 fp=0x3d34050f58 sp=0x3d34050e38 pc=0x61e10
        runtime.ensureSigM.func1()
        	runtime/signal_unix.go:1085 +0x1c8 fp=0x3d34050fd8 sp=0x3d34050f58 pc=0x7d880
        runtime.goexit({})
        	runtime/asm_riscv64.s:539 +0x4 fp=0x3d34050fd8 sp=0x3d34050fd8 pc=0x891cc
        created by runtime.ensureSigM in goroutine 1
        	runtime/signal_unix.go:1068 +0xdc
        
--- FAIL: Test/fixedbugs/issue66663.go (0.48s)

— watchflakes

@gopherbot
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Contributor Author

Found new dashboard test flakes for:

#!watchflakes
default <- `panic: inconsistent reference counts`
2025-02-05 17:15 x_tools-gotip-linux-amd64-race tools@8e4c8418 go@b45c7d54 x/tools/gopls/internal/test/integration/misc.TestRenamePackage_TestVariant/default [ABORT] (log) 
=== RUN   TestRenamePackage_TestVariant/default
panic: inconsistent reference counts

goroutine 86470 [running]:
os.(*Process).handleTransientAcquire(0xc0105db470)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/os/exec.go:184 +0xeb
os.(*Process).pidfdSendSignal(0xc0105db470, 0x2)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/os/pidfd_linux.go:122 +0x4a
os.(*Process).signal(0xc0105db470, {0x1eac6f0, 0x26e7990})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/os/exec_unix.go:87 +0x86
...
golang.org/x/tools/go/packages.goListDriver(0xc007e05dc8, 0xc0105d29a0, {0xc00a0a3810, 0x42}, {0xc0105b36c0, 0x1, 0xc01051e960?})
	/home/swarming/.swarming/w/ir/x/w/targetrepo1667794/go/packages/golist.go:218 +0xda5
golang.org/x/tools/go/packages.defaultDriver.func1(0xc007e05dc8, {0xc0105b36c0, 0x1, 0x1})
	/home/swarming/.swarming/w/ir/x/w/targetrepo1667794/go/packages/packages.go:343 +0x85
golang.org/x/tools/go/packages.callDriverOnChunks.func1()
	/home/swarming/.swarming/w/ir/x/w/targetrepo1667794/go/packages/packages.go:390 +0xa6
golang.org/x/sync/errgroup.(*Group).Go.func1()
	/home/swarming/.swarming/w/ir/x/w/gopath/pkg/mod/golang.org/x/sync@v0.10.0/errgroup/errgroup.go:78 +0x92
created by golang.org/x/sync/errgroup.(*Group).Go in goroutine 86469
	/home/swarming/.swarming/w/ir/x/w/gopath/pkg/mod/golang.org/x/sync@v0.10.0/errgroup/errgroup.go:75 +0x125
2025-02-05 20:06 gotip-linux-loong64 go@b45c7d54 cmd/internal/testdir.Test/typeparam/issue49516.go (log) 
=== RUN   Test/typeparam/issue49516.go
=== PAUSE Test/typeparam/issue49516.go
=== CONT  Test/typeparam/issue49516.go
    testdir_test.go:147: exit status 2
        panic: inconsistent reference counts
        
        goroutine 21 gp=0xc00009ae00 m=2 mp=0xc000070808 [running]:
        panic({0x6294c0?, 0x826340?})
        	runtime/panic.go:806 +0x130 fp=0xc000067ef8 sp=0xc000067e50 pc=0x8a1c0
        os.(*Process).handleTransientAcquire(0x0?)
...
        runtime.selectgo(0xc0000677b0, 0xc000067798, 0x0?, 0x0, 0x0?, 0x1)
        	runtime/select.go:351 +0x714 fp=0xc000067758 sp=0xc000067638 pc=0x66f84
        runtime.ensureSigM.func1()
        	runtime/signal_unix.go:1085 +0x1c0 fp=0xc0000677d8 sp=0xc000067758 pc=0x84c90
        runtime.goexit({})
        	runtime/asm_loong64.s:706 +0x4 fp=0xc0000677d8 sp=0xc0000677d8 pc=0x92744
        created by runtime.ensureSigM in goroutine 1
        	runtime/signal_unix.go:1068 +0xd8
        
--- FAIL: Test/typeparam/issue49516.go (0.28s)

— watchflakes

@gopherbot
Copy link
Contributor Author

Found new dashboard test flakes for:

#!watchflakes
default <- `panic: inconsistent reference counts`
2025-02-06 17:05 gotip-linux-ppc64_power8 go@cd595be6 cmd/internal/testdir.Test/typeparam/issue51836.go (log) 
=== RUN   Test/typeparam/issue51836.go
=== PAUSE Test/typeparam/issue51836.go
=== CONT  Test/typeparam/issue51836.go
    testdir_test.go:147: exit status 2
        panic: inconsistent reference counts
        
        goroutine 17 gp=0xc000202000 m=2 mp=0xc000056808 [running]:
        panic({0x6694e0?, 0x86a440?})
        	runtime/panic.go:806 +0x18c fp=0xc00019ae58 sp=0xc00019ad98 pc=0x8da1c
        os.(*Process).handleTransientAcquire(0x0?)
...
        runtime.selectgo(0xc000080f98, 0xc000053780, 0x0?, 0x0, 0x0?, 0x1)
        	runtime/select.go:351 +0x7d4 fp=0xc000080f28 sp=0xc000080dd8 pc=0x693b4
        runtime.ensureSigM.func1()
        	runtime/signal_unix.go:1085 +0x1bc fp=0xc000080fc0 sp=0xc000080f28 pc=0x885ec
        runtime.goexit({})
        	runtime/asm_ppc64x.s:1022 +0x4 fp=0xc000080fc0 sp=0xc000080fc0 pc=0x95874
        created by runtime.ensureSigM in goroutine 1
        	runtime/signal_unix.go:1068 +0x118
        
--- FAIL: Test/typeparam/issue51836.go (0.25s)

— watchflakes

@gopherbot
Copy link
Contributor Author

Found new dashboard test flakes for:

#!watchflakes
default <- `panic: inconsistent reference counts`
2025-02-06 21:36 x_tools-gotip-linux-arm64-race tools@8baeceab go@372f2d80 x/tools/gopls/internal/test/integration/misc.TestRenamePackage_TestVariant/default [ABORT] (log) 
=== RUN   TestRenamePackage_TestVariant/default
panic: inconsistent reference counts

goroutine 90196 [running]:
os.(*Process).handleTransientAcquire(0xc0157aac00)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/os/exec.go:184 +0xd8
os.(*Process).pidfdSendSignal(0xc0157aac00, 0x2)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/os/pidfd_linux.go:122 +0x38
os.(*Process).signal(0xc0157aac00, {0x1708268, 0x1f30a90})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/os/exec_unix.go:87 +0x78
...
golang.org/x/tools/go/packages.goListDriver(0xc0070c4ee8, 0xc00b354220, {0xc00ec39c20, 0x43}, {0xc00942d150, 0x1, 0xc00c4e2780?})
	/home/swarming/.swarming/w/ir/x/w/targetrepo2733944947/go/packages/golist.go:218 +0xaac
golang.org/x/tools/go/packages.defaultDriver.func1(0xc0070c4ee8, {0xc00942d150, 0x1, 0x1})
	/home/swarming/.swarming/w/ir/x/w/targetrepo2733944947/go/packages/packages.go:343 +0x68
golang.org/x/tools/go/packages.callDriverOnChunks.func1()
	/home/swarming/.swarming/w/ir/x/w/targetrepo2733944947/go/packages/packages.go:390 +0x94
golang.org/x/sync/errgroup.(*Group).Go.func1()
	/home/swarming/.swarming/w/ir/x/w/gopath/pkg/mod/golang.org/x/sync@v0.10.0/errgroup/errgroup.go:78 +0x80
created by golang.org/x/sync/errgroup.(*Group).Go in goroutine 90195
	/home/swarming/.swarming/w/ir/x/w/gopath/pkg/mod/golang.org/x/sync@v0.10.0/errgroup/errgroup.go:75 +0x110

— watchflakes

@gopherbot
Copy link
Contributor Author

Found new dashboard test flakes for:

#!watchflakes
default <- `panic: inconsistent reference counts`
2025-02-06 22:13 gotip-linux-386 go@372f2d80 cmd/internal/testdir.Test/fixedbugs/issue19699.go (log) 
=== RUN   Test/fixedbugs/issue19699.go
=== PAUSE Test/fixedbugs/issue19699.go
=== CONT  Test/fixedbugs/issue19699.go
    testdir_test.go:147: exit status 2
        panic: inconsistent reference counts
        
        goroutine 21 gp=0x9d20a28 m=3 mp=0x9c5b008 [running]:
        panic({0x86e64e0, 0x88a5458})
        	runtime/panic.go:818 +0x144 fp=0x9c53f5c sp=0x9c53f08 pc=0x80c3094
        os.(*Process).handleTransientAcquire(0x9d64180)
...
        runtime.selectgo(0x9c537d8, 0x9c537c0, 0x0, 0x0, 0x2, 0x1)
        	runtime/select.go:351 +0xc30 fp=0x9c5379c sp=0x9c536b8 pc=0x80a01d0
        runtime.ensureSigM.func1()
        	runtime/signal_unix.go:1085 +0x1a4 fp=0x9c537f0 sp=0x9c5379c pc=0x80bdd04
        runtime.goexit({})
        	runtime/asm_386.s:1393 +0x1 fp=0x9c537f4 sp=0x9c537f0 pc=0x80c9551
        created by runtime.ensureSigM in goroutine 1
        	runtime/signal_unix.go:1068 +0xe3
        
--- FAIL: Test/fixedbugs/issue19699.go (0.16s)
2025-02-06 22:13 gotip-linux-loong64 go@372f2d80 cmd/internal/testdir.Test/ken/mfunc.go (log) 
=== RUN   Test/ken/mfunc.go
=== PAUSE Test/ken/mfunc.go
=== CONT  Test/ken/mfunc.go
    testdir_test.go:147: exit status 2
        panic: inconsistent reference counts
        
        goroutine 5 gp=0xc000003340 m=3 mp=0xc000071008 [running]:
        panic({0x629820?, 0x827780?})
        	runtime/panic.go:818 +0x130 fp=0xc00006c6f8 sp=0xc00006c650 pc=0x8a230
        os.(*Process).handleTransientAcquire(0x0?)
...
        runtime.selectgo(0xc0000677b0, 0xc000067798, 0x0?, 0x0, 0x0?, 0x1)
        	runtime/select.go:351 +0x714 fp=0xc000067758 sp=0xc000067638 pc=0x66ff4
        runtime.ensureSigM.func1()
        	runtime/signal_unix.go:1085 +0x1c0 fp=0xc0000677d8 sp=0xc000067758 pc=0x84d00
        runtime.goexit({})
        	runtime/asm_loong64.s:706 +0x4 fp=0xc0000677d8 sp=0xc0000677d8 pc=0x927b4
        created by runtime.ensureSigM in goroutine 1
        	runtime/signal_unix.go:1068 +0xd8
        
--- FAIL: Test/ken/mfunc.go (0.32s)

— watchflakes

@gopherbot
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Contributor Author

Change https://go.dev/cl/638577 mentions this issue: os: don't store reference count in Process.state

@gopherbot
Copy link
Contributor Author

Found new dashboard test flakes for:

#!watchflakes
default <- `panic: inconsistent reference counts`
2025-02-07 01:08 gotip-linux-loong64 go@290ec2d9 cmd/internal/testdir.Test/syntax/semi4.go (log) 
=== RUN   Test/syntax/semi4.go
=== PAUSE Test/syntax/semi4.go
=== CONT  Test/syntax/semi4.go
    testdir_test.go:1193: gc output:
        /home/swarming/.swarming/w/ir/x/w/goroot/test/syntax/semi4.go:11: syntax error: unexpected {, expected for loop condition
        panic: inconsistent reference counts
        
        goroutine 17 gp=0xc000282380 m=2 mp=0xc000070808 [running]:
        panic({0x629820?, 0x827780?})
        	runtime/panic.go:818 +0x130 fp=0xc0000666f8 sp=0xc000066650 pc=0x8a230
...
        panic: inconsistent reference counts
        goroutine 17 gp=0xc000282380 m=2 mp=0xc000070808 [running]:
        panic({0x629820?, 0x827780?})
        	runtime/panic.go:818 +0x130 fp=0xc0000666f8 sp=0xc000066650 pc=0x8a230
        os.(*Process).handleTransientAcquire(0x0?)
        	os/exec.go:184 +0x168 fp=0xc000066710 sp=0xc0000666f8 pc=0x117308
        os.(*Process).pidfdSendSignal(0xc00010c9c0, 0x11)
        	os/pidfd_linux.go:122 +0x34 fp=0xc000066778 sp=0xc000066710 pc=0x11d754
        os.(*Process).signal(0x0?, {0x82ddd8?, 0x83a588?})
        	os/exec_unix.go:87 +0x40 fp=0xc000066798 sp=0xc000066778 pc=0x118280
...
        runtime.selectgo(0xc00006d7b0, 0xc00006d798, 0x0?, 0x0, 0x0?, 0x1)
        	runtime/select.go:351 +0x714 fp=0xc00006d758 sp=0xc00006d638 pc=0x66ff4
        runtime.ensureSigM.func1()
        	runtime/signal_unix.go:1085 +0x1c0 fp=0xc00006d7d8 sp=0xc00006d758 pc=0x84d00
        runtime.goexit({})
        	runtime/asm_loong64.s:706 +0x4 fp=0xc00006d7d8 sp=0xc00006d7d8 pc=0x927b4
        created by runtime.ensureSigM in goroutine 1
        	runtime/signal_unix.go:1068 +0xd8
        
--- FAIL: Test/syntax/semi4.go (0.13s)

— watchflakes

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