cmd/cgo/internal/testcarchive: `TestSignalForwardingGo` failures with SIGABRT instead of the expected SIGSEGV

[bcmills]

#!watchflakes
post <- pkg == "cmd/cgo/internal/testcarchive" && test == "TestSignalForwardingGo" && `got "signal: aborted \(core dumped\)"`

Go version

c29444e

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

:: Running /data/golang/workdir/go/src/make.bash with args ["/data/golang/workdir/go/src/make.bash" "-force"] and env ["LANG=en_US.UTF-8" "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin" "HOME=/root" "LOGNAME=root" "USER=root" "SHELL=/bin/sh" "INVOCATION_ID=c7eff962f62547d58bfc1ce0cd57453d" "JOURNAL_STREAM=9:337144255" "META_BUILDLET_BINARY_URL=https://storage.googleapis.com/go-builder-data/buildlet.linux-s390x" "GO_STAGE0_NET_DELAY=0s" "GO_STAGE0_DL_DELAY=100ms" "WORKDIR=/data/golang/workdir" "GOROOT_BOOTSTRAP=/data/golang/workdir/go1.4" "GO_BUILDER_NAME=linux-s390x-ibm" "GO_BUILDER_FLAKY_NET=1" "GO_TEST_TIMEOUT_SCALE=5" "GOBIN=" "TMPDIR=/data/golang/workdir/tmp" "GOCACHE=/data/golang/workdir/gocache" "GOPLSCACHE=/data/golang/workdir/goplscache" "PWD=/data/golang/workdir/go/src"] in dir /data/golang/workdir/go/src

What did you do?

https://build.golang.org/log/78e761f843d3796f9ba2417bc7aa9195b53fd982

What did you expect to see?

All tests passing.

What did you see instead?

--- FAIL: TestSignalForwardingGo (2.25s)
    carchive_test.go:676: go build -buildmode=c-archive -o libgo2.a ./libgo2
    carchive_test.go:693: [gcc -fPIC -m64 -march=z196 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/data/golang/workdir/tmp/go-build528665555214635621=/tmp/go-build -gno-record-gcc-switches -I /data/golang/workdir/tmp/carchive_test6279244834931498601/pkg/linux_s390x_shared/testcarchive -o testp main5.c libgo2.a]
    carchive_test.go:704: [./testp] 4
    carchive_test.go:756: SIGSEGV: segmentation violation
        PC=0x107b3d8 m=1 sigcode=0 addr=0x6442400000000
        
        goroutine 0 gp=0xc0000024e0 m=1 mp=0xc000056008 [idle]:
        runtime.futex(0xc000056148, 0x80, 0x0, 0x0, 0x0, 0x0)
        	/data/golang/workdir/go/src/runtime/sys_linux_s390x.s:496 +0x28 fp=0x3ffcaf7e288 sp=0x3ffcaf7e288 pc=0x107b3d8
        runtime.futexsleep(0xc000056148, 0x0, 0xffffffffffffffff)
        	/data/golang/workdir/go/src/runtime/os_linux.go:69 +0x52 fp=0x3ffcaf7e2d0 sp=0x3ffcaf7e288 pc=0x103c792
        runtime.notesleep(0xc000056148)
        	/data/golang/workdir/go/src/runtime/lock_futex.go:170 +0xb6 fp=0x3ffcaf7e300 sp=0x3ffcaf7e2d0 pc=0x100ef76
        runtime.mPark(...)
        	/data/golang/workdir/go/src/runtime/proc.go:1759
        runtime.stoplockedm()
        	/data/golang/workdir/go/src/runtime/proc.go:3024 +0x9a fp=0x3ffcaf7e350 sp=0x3ffcaf7e300 pc=0x104a2ca
        runtime.schedule()
        	/data/golang/workdir/go/src/runtime/proc.go:3845 +0x54 fp=0x3ffcaf7e388 sp=0x3ffcaf7e350 pc=0x104d1f4
        runtime.park_m(0xc000002680)
        	/data/golang/workdir/go/src/runtime/proc.go:4034 +0x2d2 fp=0x3ffcaf7e3d8 sp=0x3ffcaf7e388 pc=0x104dad2
        runtime.mcall(0x3ffcaf7e3e8)
        	/data/golang/workdir/go/src/runtime/asm_s390x.s:230 +0x5a fp=0x3ffcaf7e3e8 sp=0x3ffcaf7e3d8 pc=0x107818a
        
        goroutine 17 gp=0xc000002680 m=nil [select (no cases), locked to thread]:
        runtime.gopark(0x0, 0x0, 0xa, 0x1, 0x1)
        	/data/golang/workdir/go/src/runtime/proc.go:402 +0x136 fp=0xc000064e58 sp=0xc000064e40 pc=0x1043f06
        runtime.block()
        	/data/golang/workdir/go/src/runtime/select.go:103 +0x3c fp=0xc000064e80 sp=0xc000064e58 pc=0x1058d1c
        main.Block(...)
        	/data/golang/workdir/tmp/carchive_test6279244834931498601/src/testcarchive/libgo2/libgo2.go:57
        _cgoexp_b154175197ba_Block(0x3ffcaf7e50f)
        	_cgo_gotypes.go:60 +0x26 fp=0xc000064e88 sp=0xc000064e80 pc=0x109eff6
        runtime.cgocallbackg1(0x109efd0, 0x3ffcaf7e50f, 0x0)
        	/data/golang/workdir/go/src/runtime/cgocall.go:403 +0x28a fp=0xc000064f50 sp=0xc000064e88 pc=0x100765a
        runtime.cgocallbackg(0x109efd0, 0x3ffcaf7e50f, 0x0)
        	/data/golang/workdir/go/src/runtime/cgocall.go:322 +0x174 fp=0xc000064fc0 sp=0xc000064f50 pc=0x1007304
        runtime.cgocallback(0x0, 0x0, 0x0)
        	/data/golang/workdir/go/src/runtime/asm_s390x.s:650 +0xdc fp=0xc000064fe0 sp=0xc000064fc0 pc=0x107a47c
        runtime.goexit({})
        	/data/golang/workdir/go/src/runtime/asm_s390x.s:774 +0x2 fp=0xc000064fe0 sp=0xc000064fe0 pc=0x107a5e2
        
        goroutine 2 gp=0xc000002b60 m=nil [force gc (idle)]:
        runtime.gopark(0x10dda18, 0x1145d40, 0x11, 0xa, 0x1)
        	/data/golang/workdir/go/src/runtime/proc.go:402 +0x136 fp=0xc000050fb0 sp=0xc000050f98 pc=0x1043f06
        runtime.goparkunlock(...)
        	/data/golang/workdir/go/src/runtime/proc.go:408
        runtime.forcegchelper()
        	/data/golang/workdir/go/src/runtime/proc.go:326 +0xd2 fp=0xc000050fd8 sp=0xc000050fb0 pc=0x1043d02
        runtime.goexit({})
        	/data/golang/workdir/go/src/runtime/asm_s390x.s:774 +0x2 fp=0xc000050fd8 sp=0xc000050fd8 pc=0x107a5e2
        created by runtime.init.5 in goroutine 1
        	/data/golang/workdir/go/src/runtime/proc.go:314 +0x30
        
        goroutine 3 gp=0xc000003040 m=nil [GC sweep wait]:
        runtime.gopark(0x10dda18, 0x1145ea0, 0xc, 0x9, 0x1)
        	/data/golang/workdir/go/src/runtime/proc.go:402 +0x136 fp=0xc000051790 sp=0xc000051778 pc=0x1043f06
        runtime.goparkunlock(...)
        	/data/golang/workdir/go/src/runtime/proc.go:408
        runtime.bgsweep(0xc000078000)
        	/data/golang/workdir/go/src/runtime/mgcsweep.go:277 +0xaa fp=0xc0000517c8 sp=0xc000051790 pc=0x102b60a
        runtime.gcenable.gowrap1()
        	/data/golang/workdir/go/src/runtime/mgc.go:203 +0x5e fp=0xc0000517d8 sp=0xc0000517c8 pc=0x101d64e
        runtime.goexit({})
        	/data/golang/workdir/go/src/runtime/asm_s390x.s:774 +0x2 fp=0xc0000517d8 sp=0xc0000517d8 pc=0x107a5e2
        created by runtime.gcenable in goroutine 1
        	/data/golang/workdir/go/src/runtime/mgc.go:203 +0xa8
        
        goroutine 4 gp=0xc0000031e0 m=nil [GC scavenge wait]:
        runtime.gopark(0x10dda18, 0x1146000, 0xd, 0xa, 0x2)
        	/data/golang/workdir/go/src/runtime/proc.go:402 +0x136 fp=0xc000051f80 sp=0xc000051f68 pc=0x1043f06
        runtime.goparkunlock(...)
        	/data/golang/workdir/go/src/runtime/proc.go:408
        runtime.(*scavengerState).park(0x1146000)
        	/data/golang/workdir/go/src/runtime/mgcscavenge.go:425 +0x72 fp=0xc000051fa8 sp=0xc000051f80 pc=0x1028892
        runtime.bgscavenge(0xc000078000)
        	/data/golang/workdir/go/src/runtime/mgcscavenge.go:653 +0x5a fp=0xc000051fc8 sp=0xc000051fa8 pc=0x1028f4a
        runtime.gcenable.gowrap2()
        	/data/golang/workdir/go/src/runtime/mgc.go:204 +0x5e fp=0xc000051fd8 sp=0xc000051fc8 pc=0x101d5ce
        runtime.goexit({})
        	/data/golang/workdir/go/src/runtime/asm_s390x.s:774 +0x2 fp=0xc000051fd8 sp=0xc000051fd8 pc=0x107a5e2
        created by runtime.gcenable in goroutine 1
        	/data/golang/workdir/go/src/runtime/mgc.go:204 +0x10e
        
        goroutine 18 gp=0xc00008a680 m=nil [finalizer wait]:
        runtime.gopark(0x10dd950, 0x11b3628, 0x10, 0xa, 0x1)
        	/data/golang/workdir/go/src/runtime/proc.go:402 +0x136 fp=0xc000050718 sp=0xc000050700 pc=0x1043f06
        runtime.runfinq()
        	/data/golang/workdir/go/src/runtime/mfinal.go:194 +0x13a fp=0xc0000507d8 sp=0xc000050718 pc=0x101c15a
        runtime.goexit({})
        	/data/golang/workdir/go/src/runtime/asm_s390x.s:774 +0x2 fp=0xc0000507d8 sp=0xc0000507d8 pc=0x107a5e2
        created by runtime.createfing in goroutine 1
        	/data/golang/workdir/go/src/runtime/mfinal.go:164 +0x64
        
        r0   0x0	r1   0xee
        r2   0xc000056148	r3   0x80
        r4   0x0	r5   0x0
        r6   0x0	r7   0x0
        r8   0xc000056008	r9   0x0
        r10  0x0	r11  0x3ffb2077820
        r12  0x0	r13  0xc0000024e0
        r14  0x103c792	r15  0x3ffcaf7e288
        pc   0x107b3d8	link 0x103c792
        
        -----
        
        
    carchive_test.go:644: got "signal: aborted (core dumped)"; expected signal "quit" or "segmentation fault"
FAIL
FAIL	cmd/cgo/internal/testcarchive	64.865s

(attn @golang/s390x)

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "cmd/cgo/internal/testcarchive" && test == "TestSignalForwardingGo" && `got "signal: aborted \(core dumped\)"`

2023-12-05 20:34 linux-s390x-ibm go@c29444ef cmd/cgo/internal/testcarchive.TestSignalForwardingGo (log)

--- FAIL: TestSignalForwardingGo (2.25s)
    carchive_test.go:676: go build -buildmode=c-archive -o libgo2.a ./libgo2
    carchive_test.go:693: [gcc -fPIC -m64 -march=z196 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/data/golang/workdir/tmp/go-build528665555214635621=/tmp/go-build -gno-record-gcc-switches -I /data/golang/workdir/tmp/carchive_test6279244834931498601/pkg/linux_s390x_shared/testcarchive -o testp main5.c libgo2.a]
    carchive_test.go:704: [./testp] 4
    carchive_test.go:756: SIGSEGV: segmentation violation
        PC=0x107b3d8 m=1 sigcode=0 addr=0x6442400000000

        goroutine 0 gp=0xc0000024e0 m=1 mp=0xc000056008 [idle]:
        runtime.futex(0xc000056148, 0x80, 0x0, 0x0, 0x0, 0x0)
        	/data/golang/workdir/go/src/runtime/sys_linux_s390x.s:496 +0x28 fp=0x3ffcaf7e288 sp=0x3ffcaf7e288 pc=0x107b3d8
...
        r8   0xc000056008	r9   0x0
        r10  0x0	r11  0x3ffb2077820
        r12  0x0	r13  0xc0000024e0
        r14  0x103c792	r15  0x3ffcaf7e288
        pc   0x107b3d8	link 0x103c792

        -----


    carchive_test.go:644: got "signal: aborted (core dumped)"; expected signal "quit" or "segmentation fault"

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "cmd/cgo/internal/testcarchive" && test == "TestSignalForwardingGo" && `got "signal: aborted \(core dumped\)"`

2023-12-11 19:32 linux-s390x-ibm-race go@c844970f cmd/cgo/internal/testcarchive.TestSignalForwardingGo (log)

--- FAIL: TestSignalForwardingGo (4.57s)
    carchive_test.go:676: go build -buildmode=c-archive -o libgo2.a ./libgo2
    carchive_test.go:693: [gcc -fPIC -m64 -march=z196 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/data/golang/workdir/tmp/go-build3452279758=/tmp/go-build -gno-record-gcc-switches -I /data/golang/workdir/tmp/carchive_test3944133467/pkg/linux_s390x_shared/testcarchive -o testp main5.c libgo2.a]
    carchive_test.go:704: [./testp] 4
    carchive_test.go:756: SIGSEGV: segmentation violation
        PC=0x107b408 m=1 sigcode=0 addr=0x4e0a600000000

        goroutine 0 gp=0xc000002540 m=1 mp=0xc000056008 [idle]:
        runtime.futex(0xc000056148, 0x80, 0x0, 0x0, 0x0, 0x0)
        	/data/golang/workdir/go/src/runtime/sys_linux_s390x.s:496 +0x28 fp=0x3fff57fef78 sp=0x3fff57fef78 pc=0x107b408
...
        r8   0x10553be	r9   0x3ffbb8fe4f4
        r10  0x0	r11  0x3ffbb8f7820
        r12  0x0	r13  0xc000002540
        r14  0x103c772	r15  0x3fff57fef78
        pc   0x107b408	link 0x103c772

        -----


    carchive_test.go:644: got "signal: aborted (core dumped)"; expected signal "quit" or "segmentation fault"

— watchflakes

[mknyszek]

Similar to #64650, I wonder if this would be fairly straightforward to bisect. If anyone from @golang/s390x has time and easier access to a machine, it'll hopefully be straightforward to identify the root cause, if bisection is feasible.

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "cmd/cgo/internal/testcarchive" && test == "TestSignalForwardingGo" && `got "signal: aborted \(core dumped\)"`

2023-12-18 23:29 linux-s390x-ibm go@7383b2a4 cmd/cgo/internal/testcarchive.TestSignalForwardingGo (log)

--- FAIL: TestSignalForwardingGo (1.78s)
    carchive_test.go:676: go build -buildmode=c-archive -o libgo2.a ./libgo2
    carchive_test.go:693: [gcc -fPIC -m64 -march=z196 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/data/golang/workdir/tmp/go-build4174037875=/tmp/go-build -gno-record-gcc-switches -I /data/golang/workdir/tmp/carchive_test3460345911/pkg/linux_s390x_shared/testcarchive -o testp main5.c libgo2.a]
    carchive_test.go:704: [./testp] 4
    carchive_test.go:756: SIGSEGV: segmentation violation
        PC=0x107b468 m=1 sigcode=0 addr=0xc73b300000000

        goroutine 0 gp=0xc000002540 m=1 mp=0xc000056008 [idle]:
        runtime.futex(0xc000056148, 0x80, 0x0, 0x0, 0x0, 0x0)
        	/data/golang/workdir/go/src/runtime/sys_linux_s390x.s:496 +0x28 fp=0x3ffdd4fe898 sp=0x3ffdd4fe898 pc=0x107b468
...
        r8   0x10553ee	r9   0x3ffbddfe4f4
        r10  0x0	r11  0x3ffbddf7820
        r12  0x0	r13  0xc000002540
        r14  0x103c772	r15  0x3ffdd4fe898
        pc   0x107b468	link 0x103c772

        -----


    carchive_test.go:644: got "signal: aborted (core dumped)"; expected signal "quit" or "segmentation fault"

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "cmd/cgo/internal/testcarchive" && test == "TestSignalForwardingGo" && `got "signal: aborted \(core dumped\)"`

2024-01-24 20:57 linux-s390x-ibm go@02a09277 cmd/cgo/internal/testcarchive.TestSignalForwardingGo (log)

--- FAIL: TestSignalForwardingGo (1.25s)
    carchive_test.go:676: go build -buildmode=c-archive -o libgo2.a ./libgo2
    carchive_test.go:693: [gcc -fPIC -m64 -march=z196 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/data/golang/workdir/tmp/go-build1882466772=/tmp/go-build -gno-record-gcc-switches -I /data/golang/workdir/tmp/carchive_test2320354622/pkg/linux_s390x_shared/testcarchive -o testp main5.c libgo2.a]
    carchive_test.go:704: [./testp] 4
    carchive_test.go:756: SIGSEGV: segmentation violation
        PC=0x107b428 m=1 sigcode=0 addr=0x2e75bd00000000

        goroutine 0 gp=0xc000002540 m=1 mp=0xc000056008 [idle]:
        runtime.futex(0xc000056148, 0x80, 0x0, 0x0, 0x0, 0x0)
        	/data/golang/workdir/go/src/runtime/sys_linux_s390x.s:496 +0x28 fp=0x3fffd27e898 sp=0x3fffd27e898 pc=0x107b428
...
        r8   0xc000056008	r9   0x0
        r10  0x0	r11  0x3ffb2f77820
        r12  0x0	r13  0xc000002540
        r14  0x103c742	r15  0x3fffd27e898
        pc   0x107b428	link 0x103c742

        -----


    carchive_test.go:644: got "signal: aborted (core dumped)"; expected signal "quit" or "segmentation fault"

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "cmd/cgo/internal/testcarchive" && test == "TestSignalForwardingGo" && `got "signal: aborted \(core dumped\)"`

2024-02-13 13:54 linux-s390x-ibm-race go@e17e5308 cmd/cgo/internal/testcarchive.TestSignalForwardingGo (log)

--- FAIL: TestSignalForwardingGo (1.88s)
    carchive_test.go:676: go build -buildmode=c-archive -o libgo2.a ./libgo2
    carchive_test.go:693: [gcc -fPIC -m64 -march=z196 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/data/golang/workdir/tmp/go-build3939770364=/tmp/go-build -gno-record-gcc-switches -I /data/golang/workdir/tmp/carchive_test970983125/pkg/linux_s390x_shared/testcarchive -o testp main5.c libgo2.a]
    carchive_test.go:704: [./testp] 4
    carchive_test.go:756: SIGSEGV: segmentation violation
        PC=0x107fe28 m=1 sigcode=0 addr=0x1cda5800000000

        goroutine 0 gp=0xc000002540 m=1 mp=0xc000056008 [idle]:
        runtime.futex(0xc000056148, 0x80, 0x0, 0x0, 0x0, 0x0)
        	/data/golang/workdir/go/src/runtime/sys_linux_s390x.s:496 +0x29 fp=0x3ffea17ea68 sp=0x3ffea17ea68 pc=0x107fe29
...
        r8   0xc000056008	r9   0x0
        r10  0x0	r11  0x3ffa3077820
        r12  0x0	r13  0xc000002540
        r14  0x103c9a2	r15  0x3ffea17ea68
        pc   0x107fe28	link 0x103c9a2

        -----


    carchive_test.go:644: got "signal: aborted (core dumped)"; expected signal "quit" or "segmentation fault"

— watchflakes