runtime: TestSegv fails with the latest tip version

[YoshikiShibata]

What version of Go are you using (go version)?

$ go version
go version devel go1.18-68bd5121ee Wed Oct 27 20:03:17 2021 +0000 darwin/arm64

Does this issue reproduce with the latest release?

N/A

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
GO111MODULE=""
GOARCH="arm64"
GOBIN=""
GOCACHE="/Users/yoshikishibata/Library/Caches/go-build"
GOENV="/Users/yoshikishibata/Library/Application Support/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="arm64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/yoshikishibata/gocode/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/yoshikishibata/gocode"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/Users/yoshikishibata/tools/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/Users/yoshikishibata/tools/go/pkg/tool/darwin_arm64"
GOVCS=""
GOVERSION="devel go1.18-68bd5121ee Wed Oct 27 20:03:17 2021 +0000"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/dev/null"
GOWORK=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/fs/3c1rlryd2v3_z5m04g3lnd580000gn/T/go-build2508213166=/tmp/go-build -gno-record-gcc-switches -fno-common"
GOROOT/bin/go version: go version devel go1.18-68bd5121ee Wed Oct 27 20:03:17 2021 +0000 darwin/arm64
GOROOT/bin/go tool compile -V: compile version devel go1.18-68bd5121ee Wed Oct 27 20:03:17 2021 +0000
uname -v: Darwin Kernel Version 21.1.0: Wed Oct 13 17:33:24 PDT 2021; root:xnu-8019.41.5~1/RELEASE_ARM64_T8101
ProductName:	macOS
ProductVersion:	12.0.1
BuildVersion:	21A559
lldb --version: lldb-1205.0.27.3
Apple Swift version 5.4 (swiftlang-1205.0.26.9 clang-1205.0.19.55)

What did you do?

Rebuild the tip version with all.bash

What did you expect to see?

No error

What did you see instead?

ok  	regexp/syntax	0.385s
--- FAIL: TestSegv (0.00s)
    --- FAIL: TestSegv/Segv (0.02s)
        crash_test.go:104: /var/folders/fs/3c1rlryd2v3_z5m04g3lnd580000gn/T/go-build2955476496/testprogcgo.exe Segv exit status: exit status 2
        crash_cgo_test.go:623: fatal error: unexpected signal during runtime execution
            [signal SIGSEGV: segmentation violation code=0x2 addr=0x100bee66f pc=0x1b51a145c]
            
            runtime stack:
            runtime: unexpected return pc for runtime.syscall called from 0x1
            stack: frame={sp:0x16f3ab040, fp:0x16f3ab060} stack=[0x16f32c038,0x16f3ab0b0)
            0x000000016f3aaf40:  0x0000000100b4e48d  0x000000016f3aaf88 
            0x000000016f3aaf50:  0x0000000100a89de0 <runtime.fatalthrow+0x0000000000000040>  0x0000000100c541a0 
            0x000000016f3aaf60:  0x0000000100b71d5e  0x0000000000000001 
            0x000000016f3aaf70:  0x000000016f3aafd0  0x0000000100a89c00 <runtime.throw+0x0000000000000050> 
            0x000000016f3aaf80:  0x0000000100c541a0  0x000000016f3aafc8 
            0x000000016f3aaf90:  0x0000000100a89c00 <runtime.throw+0x0000000000000050>  0x000000016f3aafa8 
            0x000000016f3aafa0:  0x0000000100a89be8 <runtime.throw+0x0000000000000038>  0x0000000100a89e00 <runtime.fatalthrow.func1+0x0000000000000000> 
            0x000000016f3aafb0:  0x0000000100c541a0  0x0000000100a89c00 <runtime.throw+0x0000000000000050> 
            0x000000016f3aafc0:  0x000000016f3aafd0  0x000000016f3aaff8 
            0x000000016f3aafd0:  0x0000000100aa0cf8 <runtime.sigpanic+0x00000000000001e8>  0x000000016f3aafe0 
            0x000000016f3aafe0:  0x0000000100a89c20 <runtime.throw.func1+0x0000000000000000>  0x0000000100b507f8 
            0x000000016f3aaff0:  0x000000000000002a  0x000000016f3ab048 
            0x000000016f3ab000:  0x0000000100ab9d8c <runtime.syscall+0x000000000000002c>  0x0000000100b507f8 
            0x000000016f3ab010:  0x0000000100c541a0  0x0000000000000000 
            0x000000016f3ab020:  0x0000000100ab63c4 <runtime.mcall+0x0000000000000054>  0x0000014000092340 
            0x000000016f3ab030:  0x0000000100ab9d8c <runtime.syscall+0x000000000000002c>  0x0000000000000000 
            0x000000016f3ab040: <0x0000000000000001  0x0000014000049e28 
            0x000000016f3ab050:  0x0000000100ab896c <runtime.asmcgocall+0x000000000000007c>  0x0000000100b43f14 <main.Segv+0x0000000000000074> 
            0x000000016f3ab060: >0x00000140000021a0  0x0000000000000240 
            0x000000016f3ab070:  0x0000000100ab6350 <runtime.mstart+0x0000000000000010>  0x000000016f3ab0c8 
            0x000000016f3ab080:  0x0000000100ab6318 <runtime.rt0_go+0x00000000000000e8>  0x0000000000000004 
            0x000000016f3ab090:  0x0000000100c541a0  0x000000016f3ab0c8 
            0x000000016f3ab0a0:  0x0000000100ab6320 <runtime.rt0_go+0x00000000000000f0>  0x0000000100ba5d10 
            runtime.throw({0x100b507f8, 0x100c541a0})
            	/Users/yoshikishibata/tools/go/src/runtime/panic.go:965 +0x50
            runtime.sigpanic()
            	/Users/yoshikishibata/tools/go/src/runtime/signal_unix.go:782 +0x1e8
            runtime: unexpected return pc for runtime.syscall called from 0x1
            stack: frame={sp:0x16f3ab040, fp:0x16f3ab060} stack=[0x16f32c038,0x16f3ab0b0)
            0x000000016f3aaf40:  0x0000000100b4e48d  0x000000016f3aaf88 
            0x000000016f3aaf50:  0x0000000100a89de0 <runtime.fatalthrow+0x0000000000000040>  0x0000000100c541a0 
            0x000000016f3aaf60:  0x0000000100b71d5e  0x0000000000000001 
            0x000000016f3aaf70:  0x000000016f3aafd0  0x0000000100a89c00 <runtime.throw+0x0000000000000050> 
            0x000000016f3aaf80:  0x0000000100c541a0  0x000000016f3aafc8 
            0x000000016f3aaf90:  0x0000000100a89c00 <runtime.throw+0x0000000000000050>  0x000000016f3aafa8 
            0x000000016f3aafa0:  0x0000000100a89be8 <runtime.throw+0x0000000000000038>  0x0000000100a89e00 <runtime.fatalthrow.func1+0x0000000000000000> 
            0x000000016f3aafb0:  0x0000000100c541a0  0x0000000100a89c00 <runtime.throw+0x0000000000000050> 
            0x000000016f3aafc0:  0x000000016f3aafd0  0x000000016f3aaff8 
            0x000000016f3aafd0:  0x0000000100aa0cf8 <runtime.sigpanic+0x00000000000001e8>  0x000000016f3aafe0 
            0x000000016f3aafe0:  0x0000000100a89c20 <runtime.throw.func1+0x0000000000000000>  0x0000000100b507f8 
            0x000000016f3aaff0:  0x000000000000002a  0x000000016f3ab048 
            0x000000016f3ab000:  0x0000000100ab9d8c <runtime.syscall+0x000000000000002c>  0x0000000100b507f8 
            0x000000016f3ab010:  0x0000000100c541a0  0x0000000000000000 
            0x000000016f3ab020:  0x0000000100ab63c4 <runtime.mcall+0x0000000000000054>  0x0000014000092340 
            0x000000016f3ab030:  0x0000000100ab9d8c <runtime.syscall+0x000000000000002c>  0x0000000000000000 
            0x000000016f3ab040: <0x0000000000000001  0x0000014000049e28 
            0x000000016f3ab050:  0x0000000100ab896c <runtime.asmcgocall+0x000000000000007c>  0x0000000100b43f14 <main.Segv+0x0000000000000074> 
            0x000000016f3ab060: >0x00000140000021a0  0x0000000000000240 
            0x000000016f3ab070:  0x0000000100ab6350 <runtime.mstart+0x0000000000000010>  0x000000016f3ab0c8 
            0x000000016f3ab080:  0x0000000100ab6318 <runtime.rt0_go+0x00000000000000e8>  0x0000000000000004 
            0x000000016f3ab090:  0x0000000100c541a0  0x000000016f3ab0c8 
            0x000000016f3ab0a0:  0x0000000100ab6320 <runtime.rt0_go+0x00000000000000f0>  0x0000000100ba5d10 
            runtime.syscall()
            	/Users/yoshikishibata/tools/go/src/runtime/sys_darwin_arm64.s:560 +0x2c
            
            goroutine 1 [syscall]:
            syscall.syscall(0x100ad9170, 0x7701, 0xb, 0x1)
            	/Users/yoshikishibata/tools/go/src/runtime/sys_darwin.go:22 +0x1c fp=0x14000049e20 sp=0x14000049e00 pc=0x100ab592c
            syscall.syscall(0x140000660c0, 0x0, 0x14000002101, 0x100b43f14)
            	<autogenerated>:1 +0x20 fp=0x14000049e70 sp=0x14000049e20 pc=0x100aba2e0
            syscall.kill(0x14000078038, 0x0, 0x14000078010)
            	/Users/yoshikishibata/tools/go/src/syscall/zsyscall_darwin_arm64.go:368 +0x38 fp=0x14000049ea0 sp=0x14000049e70 pc=0x100ad7818
            syscall.Kill(...)
            	/Users/yoshikishibata/tools/go/src/syscall/syscall_darwin.go:115
            main.Segv()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:35 +0x90 fp=0x14000049ed0 sp=0x14000049ea0 pc=0x100b43f30
            main.main()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/main.go:34 +0x120 fp=0x14000049f70 sp=0x14000049ed0 pc=0x100b3dfb0
            runtime.main()
            	/Users/yoshikishibata/tools/go/src/runtime/proc.go:255 +0x270 fp=0x14000049fd0 sp=0x14000049f70 pc=0x100a8c170
            runtime.goexit()
            	/Users/yoshikishibata/tools/go/src/runtime/asm_arm64.s:1259 +0x4 fp=0x14000049fd0 sp=0x14000049fd0 pc=0x100ab8b44
            
            goroutine 6 [runnable]:
            main.Segv.func1()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:27 +0x24
            created by main.Segv
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:26 +0x74
            
        crash_cgo_test.go:631: unexpectedly saw "SIGSEGV" in output
    --- FAIL: TestSegv/SegvInCgo (0.02s)
        crash_test.go:104: /var/folders/fs/3c1rlryd2v3_z5m04g3lnd580000gn/T/go-build2955476496/testprogcgo.exe SegvInCgo exit status: exit status 2
        crash_cgo_test.go:623: fatal error: unexpected signal during runtime execution
            [signal SIGSEGV: segmentation violation code=0x2 addr=0x1009a4920 pc=0x1b51a145c]
            
            runtime stack:
            runtime: unexpected return pc for runtime.syscall called from 0x1
            stack: frame={sp:0x16f5c3030, fp:0x16f5c3050} stack=[0x16f544028,0x16f5c30a0)
            0x000000016f5c2f30:  0x000000010093648d  0x000000016f5c2f78 
            0x000000016f5c2f40:  0x0000000100871de0 <runtime.fatalthrow+0x0000000000000040>  0x0000000100a3c1a0 
            0x000000016f5c2f50:  0x0000000100959d5e  0x0000000000000001 
            0x000000016f5c2f60:  0x000000016f5c2fc0  0x0000000100871c00 <runtime.throw+0x0000000000000050> 
            0x000000016f5c2f70:  0x0000000100a3c1a0  0x000000016f5c2fb8 
            0x000000016f5c2f80:  0x0000000100871c00 <runtime.throw+0x0000000000000050>  0x000000016f5c2f98 
            0x000000016f5c2f90:  0x0000000100871be8 <runtime.throw+0x0000000000000038>  0x0000000100871e00 <runtime.fatalthrow.func1+0x0000000000000000> 
            0x000000016f5c2fa0:  0x0000000100a3c1a0  0x0000000100871c00 <runtime.throw+0x0000000000000050> 
            0x000000016f5c2fb0:  0x000000016f5c2fc0  0x000000016f5c2fe8 
            0x000000016f5c2fc0:  0x0000000100888cf8 <runtime.sigpanic+0x00000000000001e8>  0x000000016f5c2fd0 
            0x000000016f5c2fd0:  0x0000000100871c20 <runtime.throw.func1+0x0000000000000000>  0x00000001009387f8 
            0x000000016f5c2fe0:  0x000000000000002a  0x000000016f5c3038 
            0x000000016f5c2ff0:  0x00000001008a1d8c <runtime.syscall+0x000000000000002c>  0x00000001009387f8 
            0x000000016f5c3000:  0x0000000100a3c1a0  0x0000000000000000 
            0x000000016f5c3010:  0x00000001008a096c <runtime.asmcgocall+0x000000000000007c>  0x0000000000000000 
            0x000000016f5c3020:  0x00000001008a1d8c <runtime.syscall+0x000000000000002c>  0x0000000000000000 
            0x000000016f5c3030: <0x0000000000000001  0x0000014000049e28 
            0x000000016f5c3040:  0x00000001008a096c <runtime.asmcgocall+0x000000000000007c>  0x00000001008a096c <runtime.asmcgocall+0x000000000000007c> 
            0x000000016f5c3050: >0x00000140000021a0  0x0000000000000240 
            0x000000016f5c3060:  0x000000010089e350 <runtime.mstart+0x0000000000000010>  0x000000016f5c30b8 
            0x000000016f5c3070:  0x000000010089e318 <runtime.rt0_go+0x00000000000000e8>  0x0000000000000004 
            0x000000016f5c3080:  0x0000000100a3c1a0  0x000000016f5c30b8 
            0x000000016f5c3090:  0x000000010089e320 <runtime.rt0_go+0x00000000000000f0>  0x000000010098dd10 
            runtime.throw({0x1009387f8, 0x100a3c1a0})
            	/Users/yoshikishibata/tools/go/src/runtime/panic.go:965 +0x50
            runtime.sigpanic()
            	/Users/yoshikishibata/tools/go/src/runtime/signal_unix.go:782 +0x1e8
            runtime: unexpected return pc for runtime.syscall called from 0x1
            stack: frame={sp:0x16f5c3030, fp:0x16f5c3050} stack=[0x16f544028,0x16f5c30a0)
            0x000000016f5c2f30:  0x000000010093648d  0x000000016f5c2f78 
            0x000000016f5c2f40:  0x0000000100871de0 <runtime.fatalthrow+0x0000000000000040>  0x0000000100a3c1a0 
            0x000000016f5c2f50:  0x0000000100959d5e  0x0000000000000001 
            0x000000016f5c2f60:  0x000000016f5c2fc0  0x0000000100871c00 <runtime.throw+0x0000000000000050> 
            0x000000016f5c2f70:  0x0000000100a3c1a0  0x000000016f5c2fb8 
            0x000000016f5c2f80:  0x0000000100871c00 <runtime.throw+0x0000000000000050>  0x000000016f5c2f98 
            0x000000016f5c2f90:  0x0000000100871be8 <runtime.throw+0x0000000000000038>  0x0000000100871e00 <runtime.fatalthrow.func1+0x0000000000000000> 
            0x000000016f5c2fa0:  0x0000000100a3c1a0  0x0000000100871c00 <runtime.throw+0x0000000000000050> 
            0x000000016f5c2fb0:  0x000000016f5c2fc0  0x000000016f5c2fe8 
            0x000000016f5c2fc0:  0x0000000100888cf8 <runtime.sigpanic+0x00000000000001e8>  0x000000016f5c2fd0 
            0x000000016f5c2fd0:  0x0000000100871c20 <runtime.throw.func1+0x0000000000000000>  0x00000001009387f8 
            0x000000016f5c2fe0:  0x000000000000002a  0x000000016f5c3038 
            0x000000016f5c2ff0:  0x00000001008a1d8c <runtime.syscall+0x000000000000002c>  0x00000001009387f8 
            0x000000016f5c3000:  0x0000000100a3c1a0  0x0000000000000000 
            0x000000016f5c3010:  0x00000001008a096c <runtime.asmcgocall+0x000000000000007c>  0x0000000000000000 
            0x000000016f5c3020:  0x00000001008a1d8c <runtime.syscall+0x000000000000002c>  0x0000000000000000 
            0x000000016f5c3030: <0x0000000000000001  0x0000014000049e28 
            0x000000016f5c3040:  0x00000001008a096c <runtime.asmcgocall+0x000000000000007c>  0x00000001008a096c <runtime.asmcgocall+0x000000000000007c> 
            0x000000016f5c3050: >0x00000140000021a0  0x0000000000000240 
            0x000000016f5c3060:  0x000000010089e350 <runtime.mstart+0x0000000000000010>  0x000000016f5c30b8 
            0x000000016f5c3070:  0x000000010089e318 <runtime.rt0_go+0x00000000000000e8>  0x0000000000000004 
            0x000000016f5c3080:  0x0000000100a3c1a0  0x000000016f5c30b8 
            0x000000016f5c3090:  0x000000010089e320 <runtime.rt0_go+0x00000000000000f0>  0x000000010098dd10 
            runtime.syscall()
            	/Users/yoshikishibata/tools/go/src/runtime/sys_darwin_arm64.s:560 +0x2c
            
            goroutine 1 [syscall]:
            syscall.syscall(0x1008c1170, 0x7702, 0xb, 0x1)
            	/Users/yoshikishibata/tools/go/src/runtime/sys_darwin.go:22 +0x1c fp=0x14000049e20 sp=0x14000049e00 pc=0x10089d92c
            syscall.syscall(0x140000660c0, 0x0, 0x14000002101, 0x10092c014)
            	<autogenerated>:1 +0x20 fp=0x14000049e70 sp=0x14000049e20 pc=0x1008a22e0
            syscall.kill(0x14000077dc8, 0x0, 0x14000077da0)
            	/Users/yoshikishibata/tools/go/src/syscall/zsyscall_darwin_arm64.go:368 +0x38 fp=0x14000049ea0 sp=0x14000049e70 pc=0x1008bf818
            syscall.Kill(...)
            	/Users/yoshikishibata/tools/go/src/syscall/syscall_darwin.go:115
            main.SegvInCgo()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:52 +0x90 fp=0x14000049ed0 sp=0x14000049ea0 pc=0x10092c030
            main.main()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/main.go:34 +0x120 fp=0x14000049f70 sp=0x14000049ed0 pc=0x100925fb0
            runtime.main()
            	/Users/yoshikishibata/tools/go/src/runtime/proc.go:255 +0x270 fp=0x14000049fd0 sp=0x14000049f70 pc=0x100874170
            runtime.goexit()
            	/Users/yoshikishibata/tools/go/src/runtime/asm_arm64.s:1259 +0x4 fp=0x14000049fd0 sp=0x14000049fd0 pc=0x1008a0b44
            
            goroutine 6 [runnable]:
            main._Cfunc_nop()
            	_cgo_gotypes.go:373 +0x4c
            main.SegvInCgo.func1()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:46 +0x28
            created by main.SegvInCgo
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:43 +0x74
            
        crash_cgo_test.go:631: unexpectedly saw "SIGSEGV" in output
FAIL
FAIL	runtime	30.854s

[dmitshur]

What version of macOS are you using? macOS 12 has one known issue #49138.

Is this happening with an older tip commit?

[ianlancetaylor]

CC @prattmic

[YoshikiShibata]

@dmitshur This failure happened on both 12.0.1 and 11.6. But the version with 11.6 was

go version devel go1.18-13eccaa990 Tue Oct 26 23:12:17 2021 +0000 darwin/arm64

[dmitshur]

Does it happen reproducibly for you, or only occasionally?

It didn't reproduce locally on macOS 11.6 darwin/amd64 @ commit 749f6e9 for me, at least not on the first try:

$ ./all.bash
[...]
ok  	regexp/syntax	1.639s
ok  	runtime	249.616s
ok  	runtime/cgo	1.379s
[...]

It's also not being caught by darwin/amd64 nor darwin/arm64 builders at this time either... except, just saw the first instance of it in a recently completed build at https://build.golang.org/log/e042e5597283d5d5f3b843538efe94637116468b.

[YoshikiShibata]

My MacBook Pro is M1: darwin/arm64.
This morning (in Japan), I tried two times. both failed. I will try it again.

[YoshikiShibata]

@dmitshur Reproduced again:

go version devel go1.18-749f6e9eb6 Wed Oct 27 21:37:54 2021 +0000 darwin/arm64

ok  	regexp/syntax	0.395s
--- FAIL: TestSegv (0.00s)
    --- FAIL: TestSegv/Segv (0.03s)
        crash_test.go:104: /var/folders/fs/3c1rlryd2v3_z5m04g3lnd580000gn/T/go-build3136051995/testprogcgo.exe Segv exit status: exit status 2
        crash_cgo_test.go:623: fatal error: unexpected signal during runtime execution
            [signal SIGSEGV: segmentation violation code=0x2 addr=0x104cdfdca pc=0x1b51a145c]
            
            runtime stack:
            runtime: unexpected return pc for runtime.syscall called from 0x1
            stack: frame={sp:0x16b2bb040, fp:0x16b2bb060} stack=[0x16b23c038,0x16b2bb0b0)
            0x000000016b2baf40:  0x0000000104c3e2ad  0x000000016b2baf88 
            0x000000016b2baf50:  0x0000000104b79a50 <runtime.fatalthrow+0x0000000000000040>  0x0000000104d4c1a0 
            0x000000016b2baf60:  0x0000000104c61d76  0x0000000000000001 
            0x000000016b2baf70:  0x000000016b2bafd0  0x0000000104b79870 <runtime.throw+0x0000000000000050> 
            0x000000016b2baf80:  0x0000000104d4c1a0  0x000000016b2bafc8 
            0x000000016b2baf90:  0x0000000104b79870 <runtime.throw+0x0000000000000050>  0x000000016b2bafa8 
            0x000000016b2bafa0:  0x0000000104b79858 <runtime.throw+0x0000000000000038>  0x0000000104b79a70 <runtime.fatalthrow.func1+0x0000000000000000> 
            0x000000016b2bafb0:  0x0000000104d4c1a0  0x0000000104b79870 <runtime.throw+0x0000000000000050> 
            0x000000016b2bafc0:  0x000000016b2bafd0  0x000000016b2baff8 
            0x000000016b2bafd0:  0x0000000104b90968 <runtime.sigpanic+0x00000000000001e8>  0x000000016b2bafe0 
            0x000000016b2bafe0:  0x0000000104b79890 <runtime.throw.func1+0x0000000000000000>  0x0000000104c40618 
            0x000000016b2baff0:  0x000000000000002a  0x000000016b2bb048 
            0x000000016b2bb000:  0x0000000104ba9bac <runtime.syscall+0x000000000000002c>  0x0000000104c40618 
            0x000000016b2bb010:  0x0000000104d4c1a0  0x0000000000000000 
            0x000000016b2bb020:  0x0000000104ba61e4 <runtime.mcall+0x0000000000000054>  0x0000014000092340 
            0x000000016b2bb030:  0x0000000104ba9bac <runtime.syscall+0x000000000000002c>  0x0000000000000000 
            0x000000016b2bb040: <0x0000000000000001  0x0000014000049e28 
            0x000000016b2bb050:  0x0000000104ba878c <runtime.asmcgocall+0x000000000000007c>  0x0000000104c33d34 <main.Segv+0x0000000000000074> 
            0x000000016b2bb060: >0x00000140000021a0  0x0000000000000240 
            0x000000016b2bb070:  0x0000000104ba6170 <runtime.mstart+0x0000000000000010>  0x000000016b2bb0c8 
            0x000000016b2bb080:  0x0000000104ba6138 <runtime.rt0_go+0x00000000000000e8>  0x0000000000000004 
            0x000000016b2bb090:  0x0000000104d4c1a0  0x000000016b2bb0c8 
            0x000000016b2bb0a0:  0x0000000104ba6140 <runtime.rt0_go+0x00000000000000f0>  0x0000000104c95d10 
            runtime.throw({0x104c40618?, 0x104d4c1a0?})
            	/Users/yoshikishibata/tools/go/src/runtime/panic.go:965 +0x50
            runtime.sigpanic()
            	/Users/yoshikishibata/tools/go/src/runtime/signal_unix.go:782 +0x1e8
            runtime: unexpected return pc for runtime.syscall called from 0x1
            stack: frame={sp:0x16b2bb040, fp:0x16b2bb060} stack=[0x16b23c038,0x16b2bb0b0)
            0x000000016b2baf40:  0x0000000104c3e2ad  0x000000016b2baf88 
            0x000000016b2baf50:  0x0000000104b79a50 <runtime.fatalthrow+0x0000000000000040>  0x0000000104d4c1a0 
            0x000000016b2baf60:  0x0000000104c61d76  0x0000000000000001 
            0x000000016b2baf70:  0x000000016b2bafd0  0x0000000104b79870 <runtime.throw+0x0000000000000050> 
            0x000000016b2baf80:  0x0000000104d4c1a0  0x000000016b2bafc8 
            0x000000016b2baf90:  0x0000000104b79870 <runtime.throw+0x0000000000000050>  0x000000016b2bafa8 
            0x000000016b2bafa0:  0x0000000104b79858 <runtime.throw+0x0000000000000038>  0x0000000104b79a70 <runtime.fatalthrow.func1+0x0000000000000000> 
            0x000000016b2bafb0:  0x0000000104d4c1a0  0x0000000104b79870 <runtime.throw+0x0000000000000050> 
            0x000000016b2bafc0:  0x000000016b2bafd0  0x000000016b2baff8 
            0x000000016b2bafd0:  0x0000000104b90968 <runtime.sigpanic+0x00000000000001e8>  0x000000016b2bafe0 
            0x000000016b2bafe0:  0x0000000104b79890 <runtime.throw.func1+0x0000000000000000>  0x0000000104c40618 
            0x000000016b2baff0:  0x000000000000002a  0x000000016b2bb048 
            0x000000016b2bb000:  0x0000000104ba9bac <runtime.syscall+0x000000000000002c>  0x0000000104c40618 
            0x000000016b2bb010:  0x0000000104d4c1a0  0x0000000000000000 
            0x000000016b2bb020:  0x0000000104ba61e4 <runtime.mcall+0x0000000000000054>  0x0000014000092340 
            0x000000016b2bb030:  0x0000000104ba9bac <runtime.syscall+0x000000000000002c>  0x0000000000000000 
            0x000000016b2bb040: <0x0000000000000001  0x0000014000049e28 
            0x000000016b2bb050:  0x0000000104ba878c <runtime.asmcgocall+0x000000000000007c>  0x0000000104c33d34 <main.Segv+0x0000000000000074> 
            0x000000016b2bb060: >0x00000140000021a0  0x0000000000000240 
            0x000000016b2bb070:  0x0000000104ba6170 <runtime.mstart+0x0000000000000010>  0x000000016b2bb0c8 
            0x000000016b2bb080:  0x0000000104ba6138 <runtime.rt0_go+0x00000000000000e8>  0x0000000000000004 
            0x000000016b2bb090:  0x0000000104d4c1a0  0x000000016b2bb0c8 
            0x000000016b2bb0a0:  0x0000000104ba6140 <runtime.rt0_go+0x00000000000000f0>  0x0000000104c95d10 
            runtime.syscall()
            	/Users/yoshikishibata/tools/go/src/runtime/sys_darwin_arm64.s:560 +0x2c
            
            goroutine 1 [syscall]:
            syscall.syscall(0x104bc8f90, 0xb5dd, 0xb, 0x1)
            	/Users/yoshikishibata/tools/go/src/runtime/sys_darwin.go:22 +0x1c fp=0x14000049e20 sp=0x14000049e00 pc=0x104ba574c
            syscall.syscall(0x140000660c0?, 0x0?, 0x14000002101?, 0x104c33d34?)
            	<autogenerated>:1 +0x20 fp=0x14000049e70 sp=0x14000049e20 pc=0x104baa100
            syscall.kill(0x14000077dc8?, 0x0?, 0x14000077da0?)
            	/Users/yoshikishibata/tools/go/src/syscall/zsyscall_darwin_arm64.go:368 +0x38 fp=0x14000049ea0 sp=0x14000049e70 pc=0x104bc7638
            syscall.Kill(...)
            	/Users/yoshikishibata/tools/go/src/syscall/syscall_darwin.go:115
            main.Segv()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:35 +0x90 fp=0x14000049ed0 sp=0x14000049ea0 pc=0x104c33d50
            main.main()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/main.go:34 +0x120 fp=0x14000049f70 sp=0x14000049ed0 pc=0x104c2ddd0
            runtime.main()
            	/Users/yoshikishibata/tools/go/src/runtime/proc.go:255 +0x270 fp=0x14000049fd0 sp=0x14000049f70 pc=0x104b7bde0
            runtime.goexit()
            	/Users/yoshikishibata/tools/go/src/runtime/asm_arm64.s:1259 +0x4 fp=0x14000049fd0 sp=0x14000049fd0 pc=0x104ba8964
            
            goroutine 6 [runnable]:
            main.Segv.func1()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:27 +0x24
            created by main.Segv
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:26 +0x74
            
        crash_cgo_test.go:631: unexpectedly saw "SIGSEGV" in output
    --- FAIL: TestSegv/SegvInCgo (0.02s)
        crash_test.go:104: /var/folders/fs/3c1rlryd2v3_z5m04g3lnd580000gn/T/go-build3136051995/testprogcgo.exe SegvInCgo exit status: exit status 2
        crash_cgo_test.go:623: fatal error: unexpected signal during runtime execution
            [signal SIGSEGV: segmentation violation code=0x2 addr=0x1024e8940 pc=0x1b51a145c]
            
            runtime stack:
            runtime: unexpected return pc for runtime.syscall called from 0x1
            stack: frame={sp:0x16da7f030, fp:0x16da7f050} stack=[0x16da00028,0x16da7f0a0)
            0x000000016da7ef30:  0x000000010247a2ad  0x000000016da7ef78 
            0x000000016da7ef40:  0x00000001023b5a50 <runtime.fatalthrow+0x0000000000000040>  0x00000001025881a0 
            0x000000016da7ef50:  0x000000010249dd76  0x0000000000000001 
            0x000000016da7ef60:  0x000000016da7efc0  0x00000001023b5870 <runtime.throw+0x0000000000000050> 
            0x000000016da7ef70:  0x00000001025881a0  0x000000016da7efb8 
            0x000000016da7ef80:  0x00000001023b5870 <runtime.throw+0x0000000000000050>  0x000000016da7ef98 
            0x000000016da7ef90:  0x00000001023b5858 <runtime.throw+0x0000000000000038>  0x00000001023b5a70 <runtime.fatalthrow.func1+0x0000000000000000> 
            0x000000016da7efa0:  0x00000001025881a0  0x00000001023b5870 <runtime.throw+0x0000000000000050> 
            0x000000016da7efb0:  0x000000016da7efc0  0x000000016da7efe8 
            0x000000016da7efc0:  0x00000001023cc968 <runtime.sigpanic+0x00000000000001e8>  0x000000016da7efd0 
            0x000000016da7efd0:  0x00000001023b5890 <runtime.throw.func1+0x0000000000000000>  0x000000010247c618 
            0x000000016da7efe0:  0x000000000000002a  0x000000016da7f038 
            0x000000016da7eff0:  0x00000001023e5bac <runtime.syscall+0x000000000000002c>  0x000000010247c618 
            0x000000016da7f000:  0x00000001025881a0  0x0000000000000000 
            0x000000016da7f010:  0x00000001023e478c <runtime.asmcgocall+0x000000000000007c>  0x0000000000000000 
            0x000000016da7f020:  0x00000001023e5bac <runtime.syscall+0x000000000000002c>  0x0000000000000000 
            0x000000016da7f030: <0x0000000000000001  0x0000014000049e28 
            0x000000016da7f040:  0x00000001023e478c <runtime.asmcgocall+0x000000000000007c>  0x00000001023e478c <runtime.asmcgocall+0x000000000000007c> 
            0x000000016da7f050: >0x00000140000021a0  0x0000000000000240 
            0x000000016da7f060:  0x00000001023e2170 <runtime.mstart+0x0000000000000010>  0x000000016da7f0b8 
            0x000000016da7f070:  0x00000001023e2138 <runtime.rt0_go+0x00000000000000e8>  0x0000000000000004 
            0x000000016da7f080:  0x00000001025881a0  0x000000016da7f0b8 
            0x000000016da7f090:  0x00000001023e2140 <runtime.rt0_go+0x00000000000000f0>  0x00000001024d1d10 
            runtime.throw({0x10247c618?, 0x1025881a0?})
            	/Users/yoshikishibata/tools/go/src/runtime/panic.go:965 +0x50
            runtime.sigpanic()
            	/Users/yoshikishibata/tools/go/src/runtime/signal_unix.go:782 +0x1e8
            runtime: unexpected return pc for runtime.syscall called from 0x1
            stack: frame={sp:0x16da7f030, fp:0x16da7f050} stack=[0x16da00028,0x16da7f0a0)
            0x000000016da7ef30:  0x000000010247a2ad  0x000000016da7ef78 
            0x000000016da7ef40:  0x00000001023b5a50 <runtime.fatalthrow+0x0000000000000040>  0x00000001025881a0 
            0x000000016da7ef50:  0x000000010249dd76  0x0000000000000001 
            0x000000016da7ef60:  0x000000016da7efc0  0x00000001023b5870 <runtime.throw+0x0000000000000050> 
            0x000000016da7ef70:  0x00000001025881a0  0x000000016da7efb8 
            0x000000016da7ef80:  0x00000001023b5870 <runtime.throw+0x0000000000000050>  0x000000016da7ef98 
            0x000000016da7ef90:  0x00000001023b5858 <runtime.throw+0x0000000000000038>  0x00000001023b5a70 <runtime.fatalthrow.func1+0x0000000000000000> 
            0x000000016da7efa0:  0x00000001025881a0  0x00000001023b5870 <runtime.throw+0x0000000000000050> 
            0x000000016da7efb0:  0x000000016da7efc0  0x000000016da7efe8 
            0x000000016da7efc0:  0x00000001023cc968 <runtime.sigpanic+0x00000000000001e8>  0x000000016da7efd0 
            0x000000016da7efd0:  0x00000001023b5890 <runtime.throw.func1+0x0000000000000000>  0x000000010247c618 
            0x000000016da7efe0:  0x000000000000002a  0x000000016da7f038 
            0x000000016da7eff0:  0x00000001023e5bac <runtime.syscall+0x000000000000002c>  0x000000010247c618 
            0x000000016da7f000:  0x00000001025881a0  0x0000000000000000 
            0x000000016da7f010:  0x00000001023e478c <runtime.asmcgocall+0x000000000000007c>  0x0000000000000000 
            0x000000016da7f020:  0x00000001023e5bac <runtime.syscall+0x000000000000002c>  0x0000000000000000 
            0x000000016da7f030: <0x0000000000000001  0x0000014000049e28 
            0x000000016da7f040:  0x00000001023e478c <runtime.asmcgocall+0x000000000000007c>  0x00000001023e478c <runtime.asmcgocall+0x000000000000007c> 
            0x000000016da7f050: >0x00000140000021a0  0x0000000000000240 
            0x000000016da7f060:  0x00000001023e2170 <runtime.mstart+0x0000000000000010>  0x000000016da7f0b8 
            0x000000016da7f070:  0x00000001023e2138 <runtime.rt0_go+0x00000000000000e8>  0x0000000000000004 
            0x000000016da7f080:  0x00000001025881a0  0x000000016da7f0b8 
            0x000000016da7f090:  0x00000001023e2140 <runtime.rt0_go+0x00000000000000f0>  0x00000001024d1d10 
            runtime.syscall()
            	/Users/yoshikishibata/tools/go/src/runtime/sys_darwin_arm64.s:560 +0x2c
            
            goroutine 1 [syscall]:
            syscall.syscall(0x102404f90, 0xb5de, 0xb, 0x1)
            	/Users/yoshikishibata/tools/go/src/runtime/sys_darwin.go:22 +0x1c fp=0x14000049e20 sp=0x14000049e00 pc=0x1023e174c
            syscall.syscall(0x140000660c0?, 0x0?, 0x14000002101?, 0x10246fe34?)
            	<autogenerated>:1 +0x20 fp=0x14000049e70 sp=0x14000049e20 pc=0x1023e6100
            syscall.kill(0x14000077f78?, 0x0?, 0x14000077f40?)
            	/Users/yoshikishibata/tools/go/src/syscall/zsyscall_darwin_arm64.go:368 +0x38 fp=0x14000049ea0 sp=0x14000049e70 pc=0x102403638
            syscall.Kill(...)
            	/Users/yoshikishibata/tools/go/src/syscall/syscall_darwin.go:115
            main.SegvInCgo()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:52 +0x90 fp=0x14000049ed0 sp=0x14000049ea0 pc=0x10246fe50
            main.main()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/main.go:34 +0x120 fp=0x14000049f70 sp=0x14000049ed0 pc=0x102469dd0
            runtime.main()
            	/Users/yoshikishibata/tools/go/src/runtime/proc.go:255 +0x270 fp=0x14000049fd0 sp=0x14000049f70 pc=0x1023b7de0
            runtime.goexit()
            	/Users/yoshikishibata/tools/go/src/runtime/asm_arm64.s:1259 +0x4 fp=0x14000049fd0 sp=0x14000049fd0 pc=0x1023e4964
            
            goroutine 6 [runnable]:
            main._Cfunc_nop()
            	_cgo_gotypes.go:373 +0x4c
            main.SegvInCgo.func1()
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:46 +0x28
            created by main.SegvInCgo
            	/Users/yoshikishibata/tools/go/src/runtime/testdata/testprogcgo/segv.go:43 +0x74
            
        crash_cgo_test.go:631: unexpectedly saw "SIGSEGV" in output
FAIL
FAIL	runtime	31.364s

[cherrymui]

I think this is a dup of #49182. Thanks.