panic: runtime error: cgo argument has Go pointer to Go pointer

[zhengxiaochuan-3]

[root@localhost gomdb]# go version
go version go1.8 linux/amd64

[root@localhost gomdb]# go test -bench .
--- FAIL: TestTest1 (0.00s)
panic: runtime error: cgo argument has Go pointer to Go pointer [recovered]
	panic: runtime error: cgo argument has Go pointer to Go pointer

goroutine 23 [running, locked to thread]:
testing.tRunner.func1(0xc4200789c0)
	/usr/local/go/src/testing/testing.go:622 +0x29d
panic(0x543e00, 0xc420070f80)
	/usr/local/go/src/runtime/panic.go:489 +0x2cf
github.com/szferi/gomdb.(*Txn).Put.func1(0x217ce960, 0xc400000001, 0xc420070f60, 0xc420070f70, 0xc400000010, 0x5)
	/home/go-project/src/github.com/szferi/gomdb/txn.go:149 +0x8b
github.com/szferi/gomdb.(*Txn).Put(0xc4200820d8, 0x1, 0xc420070f50, 0x5, 0x8, 0xc420070f58, 0x5, 0x8, 0x10, 0x0, ...)
	/home/go-project/src/github.com/szferi/gomdb/txn.go:149 +0xf7
github.com/szferi/gomdb.TestTest1(0xc4200789c0)
	/home/go-project/src/github.com/szferi/gomdb/mdb_test.go:52 +0x7ec
testing.tRunner(0xc4200789c0, 0x572d90)
	/usr/local/go/src/testing/testing.go:657 +0x96
created by testing.(*T).Run
	/usr/local/go/src/testing/testing.go:697 +0x2ca
exit status 2
FAIL	github.com/szferi/gomdb	0.006s

[itsmontoya]

IIRC go 1.8 checks for this issue while prior versions did not. I don't think this library will work until he fixes it. Unfortunately, this repo seems a little quiet :(

[stapelberg]

I think the approach which bmatsuo/lmdb-go@ee54e27#diff-0883e46e594b4d9e50c72005c5d390d9 implements (in a separate repo/project) is what needs to be done here as well.