runtime: TestAsyncPreempt failed on linux/arm64 and amd64 #35608
Description
What version of Go are you using (go version)?
$ go version go version devel +3f21c2381d Thu Nov 14 01:57:00 2019 +0000 linux/arm64
The issue was observed on linux/amd64 as well, so far the initial analysis is made on linux/arm64 only.
Does this issue reproduce with the latest release?
Yes.
What operating system and processor architecture are you using (go env)?
go env Output
$ go env GO111MODULE="" GOARCH="arm64" GOBIN="" GOCACHE="/home/xiaji01/.cache/go-build" GOENV="/home/xiaji01/.config/go/env" GOEXE="" GOFLAGS="" GOHOSTARCH="arm64" GOHOSTOS="linux" GOINSECURE="" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/home/xiaji01/.go" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/home/xiaji01/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/home/xiaji01/go/pkg/tool/linux_arm64" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/home/xiaji01/go/src/go.mod" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build634223204=/tmp/go-build -gno-record-gcc-switches"
What did you do?
build and run package testing with the latest code.
What did you expect to see?
The case pass on all linux/arm64 and linux/amd64 platforms.
What did you see instead?
ok regexp/syntax 0.757s
--- FAIL: TestAsyncPreempt (60.01s)
crash_test.go:95: testprog AsyncPreempt exit status: exit status 2
proc_test.go:367: want OK
, got SIGQUIT: quit
PC=0xcb088 m=0 sigcode=0
goroutine 7 [running]:
main.frameless()
/root/ci-scripts/golang/src/runtime/testdata/testprog/preempt.go:56 +0x8 fp=0x40000cafc0 sp=0x40000cafc0 pc=0xcb088
main.AsyncPreempt.func2(0x400001c154)
/root/ci-scripts/golang/src/runtime/testdata/testprog/preempt.go:36 +0x2c fp=0x40000cafd0 sp=0x40000cafc0 pc=0xce5ac
runtime.goexit()
/home/root/ci-scripts/golang/src/runtime/asm_arm64.s:1148 +0x4 fp=0x40000cafd0 sp=0x40000cafd0 pc=0x6ae94
created by main.AsyncPreempt
/root/ci-scripts/golang/src/runtime/testdata/testprog/preempt.go:34 +0xa8
goroutine 1 [runnable]:
runtime.Gosched(...)
/home/root/ci-scripts/golang/src/runtime/proc.go:269
main.AsyncPreempt()
/root/ci-scripts/golang/src/runtime/testdata/testprog/preempt.go:42 +0xc8
main.main()
/root/ci-scripts/golang/src/runtime/testdata/testprog/main.go:34 +0x194
goroutine 6 [runnable]:
main.AsyncPreempt.func1(0x400001c150)
/root/ci-scripts/golang/src/runtime/testdata/testprog/preempt.go:28
created by main.AsyncPreempt
/root/ci-scripts/golang/src/runtime/testdata/testprog/preempt.go:26 +0x88
r0 0x8e847c962
r1 0xab9f639d053fa011
r2 0x40000cafd0
r3 0x0
r4 0x40000ca800
r5 0x40000013b8
r6 0xce580
r7 0x400001c154
r8 0x1e7940
r9 0x0
r10 0x0
r11 0x1bdea0
r12 0x129068
r13 0x0
r14 0xf1
r15 0x0
r16 0x0
r17 0x30
r18 0x0
r19 0xd0
r20 0xffffe970c920
r21 0x1e7940
r22 0x4000002000
r23 0x0
r24 0x0
r25 0x0
r26 0x112288
r27 0x4000000000000000
r28 0x4000001380
r29 0x40000cafb8
lr 0xce5ac
sp 0x40000cafc0
pc 0xcb088
fault 0x0
FAIL