Cannot test with -race #5

New Issue

Ghost · 2023-07-28T02:45:28Z

Ghost commented

2023-07-28 02:45:28 +00:00

If run following test case with go test -race, a panic fatal error: checkptr: pointer arithmetic result points to invalid allocation will occur.

import (
	"testing"

	"go.elara.ws/pcre"
)

func TestRegex(t *testing.T) {
	regex := pcre.MustCompile(`varnish(?: \(Varnish\/([\d.]{1,250})\))?`)
	regex.MatchString("1.1 varnish")
}

Some traceback message:

goroutine 35 [running]:
runtime.throw({0x101af773d?, 0x1015e4a64?})
	runtime/panic.go:1047 +0x40 fp=0xc000385890 sp=0xc000385860 pc=0x100c00cf0
runtime.checkptrArithmetic(0xc0001d95e0?, {0x0, 0x0, 0x10?})
	runtime/checkptr.go:69 +0xac fp=0xc0003858c0 sp=0xc000385890 pc=0x100bd086c
modernc.org/libc.Xmemchr(...)
	modernc.org/libc@v1.16.8/libc.go:835
go.elara.ws/pcre/lib.Xpcre2_match_8(0xc0001d95e0, 0x12d000320, 0xc000385e60, 0xb, 0x0, 0x0, 0x12d5000a0, 0x12d500020)
	go.elara.ws/pcre@v0.0.0-20230726053529-6d906d55a6d2/lib/pcre2_darwin_arm64.go:60774 +0x518c fp=0xc000385ba0 sp=0xc0003858c0 pc=0x1015e6d8c
go.elara.ws/pcre.(*Regexp).match(0xc0000b1a80, {0xc000385e60, 0xb, 0xc0001d95e0?}, 0x2d2c78?, 0x0)
	go.elara.ws/pcre@v0.0.0-20230726053529-6d906d55a6d2/pcre.go:678 +0x298 fp=0xc000385db0 sp=0xc000385ba0 pc=0x1015fe228
go.elara.ws/pcre.(*Regexp).Find(0x101ae8bd9?, {0xc000385e60, 0xb, 0x20})
	go.elara.ws/pcre@v0.0.0-20230726053529-6d906d55a6d2/pcre.go:129 +0x4c fp=0xc000385e30 sp=0xc000385db0 pc=0x1015f9bdc
go.elara.ws/pcre.(*Regexp).MatchString(...)
	go.elara.ws/pcre@v0.0.0-20230726053529-6d906d55a6d2/pcre.go:377

If run following test case with `go test -race`, a panic `fatal error: checkptr: pointer arithmetic result points to invalid allocation` will occur. ```go import ( "testing" "go.elara.ws/pcre" ) func TestRegex(t *testing.T) { regex := pcre.MustCompile(`varnish(?: \(Varnish\/([\d.]{1,250})\))?`) regex.MatchString("1.1 varnish") } ``` Some traceback message: ``` goroutine 35 [running]: runtime.throw({0x101af773d?, 0x1015e4a64?}) runtime/panic.go:1047 +0x40 fp=0xc000385890 sp=0xc000385860 pc=0x100c00cf0 runtime.checkptrArithmetic(0xc0001d95e0?, {0x0, 0x0, 0x10?}) runtime/checkptr.go:69 +0xac fp=0xc0003858c0 sp=0xc000385890 pc=0x100bd086c modernc.org/libc.Xmemchr(...) modernc.org/libc@v1.16.8/libc.go:835 go.elara.ws/pcre/lib.Xpcre2_match_8(0xc0001d95e0, 0x12d000320, 0xc000385e60, 0xb, 0x0, 0x0, 0x12d5000a0, 0x12d500020) go.elara.ws/pcre@v0.0.0-20230726053529-6d906d55a6d2/lib/pcre2_darwin_arm64.go:60774 +0x518c fp=0xc000385ba0 sp=0xc0003858c0 pc=0x1015e6d8c go.elara.ws/pcre.(*Regexp).match(0xc0000b1a80, {0xc000385e60, 0xb, 0xc0001d95e0?}, 0x2d2c78?, 0x0) go.elara.ws/pcre@v0.0.0-20230726053529-6d906d55a6d2/pcre.go:678 +0x298 fp=0xc000385db0 sp=0xc000385ba0 pc=0x1015fe228 go.elara.ws/pcre.(*Regexp).Find(0x101ae8bd9?, {0xc000385e60, 0xb, 0x20}) go.elara.ws/pcre@v0.0.0-20230726053529-6d906d55a6d2/pcre.go:129 +0x4c fp=0xc000385e30 sp=0xc000385db0 pc=0x1015f9bdc go.elara.ws/pcre.(*Regexp).MatchString(...) go.elara.ws/pcre@v0.0.0-20230726053529-6d906d55a6d2/pcre.go:377 ```

Ghost commented

2023-07-28 02:47:30 +00:00

I'm using Darwin ARM64, but the same error occurs on Linux AMD64 too

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Reference: Elara6331/pcre#5