Panic: Runtime Error: Cgo Argument Has Go Pointer To Go Pointer #6

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Jump to bottom panic: runtime error: cgo argument has Go pointer to Go pointer #6 Open zhengxiaochuan-3 opened this issue Aug 14, 2017 · 4 comments Open panic: runtime error: cgo argument has Go pointer to Go pointer #6 zhengxiaochuan-3 opened this issue Aug 14, 2017 · 4 comments

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zhengxiaochuan-3 commented Aug 14, 2017

go version: [root@node-65-76 nvme]# go version go version go1.8.1 linux/amd64 goroutine 62 [running, locked to thread]: github.com/armon/gomdb.(*Txn).Put.func1(0x7fc0d8001df0, 0xc400000002, 0xc420164490, 0xc4201644a0, 0x0, 0x0) /home/go-project/src/github.com/armon/gomdb/txn.go:152 +0x8b github.com/armon/gomdb.(*Txn).Put(0xc42062a050, 0x2, 0xc420164430, 0x8, 0x8, 0xc420ea6000, 0x4d, 0x81, 0x0, 0x0, ...) /home/go-project/src/github.com/armon/gomdb/txn.go:152 +0xec github.com/hashicorp/raft-mdb.(*MDBStore).StoreLogs(0xc42000c8c0, 0xc42062a038, 0x1, 0x1, 0x1, 0x1) /home/go-project/src/github.com/hashicorp/raft-mdb/mdb_store.go:223 +0x229 github.com/hashicorp/raft.(*Raft).dispatchLogs(0xc420190600, 0xc42006dea8, 0x1, 0x1) /home/go-project/src/github.com/hashicorp/raft/raft.go:1149 +0x3a3 github.com/hashicorp/raft.(*Raft).runLeader(0xc420190600) /home/go-project/src/github.com/hashicorp/raft/raft.go:861 +0x68a github.com/hashicorp/raft.(*Raft).run(0xc420190600) /home/go-project/src/github.com/hashicorp/raft/raft.go:635 +0x84 github.com/hashicorp/raft.(*Raft).(github.com/hashicorp/raft.run)-fm() /home/go-project/src/github.com/hashicorp/raft/raft.go:259 +0x2a github.com/hashicorp/raft.(*raftState).goFunc.func1(0xc420190600, 0xc42061e450) /home/go-project/src/github.com/hashicorp/raft/state.go:146 +0x53 created by github.com/hashicorp/raft.(*raftState).goFunc /home/go-project/src/github.com/hashicorp/raft/state.go:147 +0x66 2017/08/14 11:58:30 [DEBUG] raft-net: 127.0.0.1:12001 accepted connection from: 127.0.0.1:58652 panic: runtime error: cgo argument has Go pointer to Go pointer

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tylertreat commented Aug 15, 2017

I just ran across the same issue. I think this library might need to be updated to work with newer versions of Go?

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freeekanayaka commented Sep 12, 2017

@tylertreat right, it violates cgo pointer rules rules, which have always been there but now have runtime checks in Go 1.8. Can upstream make a comment on this? It seems this bug pretty much makes the lmdb backend for the raft package unusable with Go 1.8 (and the lmdb backend is the recommended one).

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tylertreat commented Sep 12, 2017

FWIW, it looks like Consul uses https://github.com/hashicorp/raft-boltdb for its Raft backend, so I wonder if that is the "recommended" one now.

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freeekanayaka commented Sep 12, 2017 • edited Loading

@tylertreat if it's not anymore, I'd say the raft README should be updated: "To prevent complications with cgo, the primary backend MDBStore is in a separate repository, called raft-mdb. That is the recommended implementation for the LogStore and StableStore."

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