Error attempting to sync testnet in v0.13.0.2

[oliverw]

I've just built v0.13.0.2 from source in Ubuntu 16.04 (WSL). Upon starting monerod with an empty data directory the following happens:

oliver@DESKTOP-2GKAJGE: $ rm -rf .bitmonero/
oliver@DESKTOP-2GKAJGE: $ monero/build/Linux/HEAD_detached_at_v0.13.0.2/release/bin/monerod --testnet
2018-10-10 19:04:23,918 INFO [default] Page size: 4096
2018-10-10 19:04:24.923 7fcd21ae0780 INFO global src/daemon/main.cpp:287 Monero 'Beryllium Bullet' (v0.13.0.2-release)
2018-10-10 19:04:24.923 7fcd21ae0780 INFO global src/daemon/protocol.h:53 Initializing cryptonote protocol...
2018-10-10 19:04:24.927 7fcd21ae0780 INFO global src/daemon/protocol.h:58 Cryptonote protocol initialized OK
2018-10-10 19:04:24.927 7fcd21ae0780 INFO global src/daemon/p2p.h:63 Initializing p2p server...
2018-10-10 19:04:27.597 7fcd21ae0780 INFO global src/daemon/p2p.h:68 p2p server initialized OK
2018-10-10 19:04:27.597 7fcd21ae0780 INFO global src/daemon/rpc.h:63 Initializing core RPC server...
2018-10-10 19:04:27.597 7fcd21ae0780 INFO global contrib/epee/include/net/http_server_impl_base.h:76 Binding on 127.0.0.1:28081
2018-10-10 19:04:27.597 7fcd21ae0780 INFO global src/daemon/rpc.h:69 core RPC server initialized OK on port: 28081
2018-10-10 19:04:27.597 7fcd21ae0780 INFO global src/daemon/core.h:86 Initializing core...
2018-10-10 19:04:27.598 7fcd21ae0780 INFO global src/cryptonote_core/cryptonote_core.cpp:447 Loading blockchain from folder /home/oliver/.bitmonero/testnet/lmdb ...
2018-10-10 19:04:27.601 7fcd21ae0780 WARN blockchain.db.lmdb src/blockchain_db/lmdb/db_lmdb.cpp:75 Error attempting to retrieve a hard fork version at height 0 from the db: MDB_BAD_TXN: Transaction must abort, has a child, or is invalid
2018-10-10 19:04:27.605 7fcd21ae0780 FATAL daemon src/daemon/daemon.cpp:195 Uncaught exception! Error adding hard fork version to db transaction: MDB_BAD_TXN: Transaction must abort, has a child, or is invalid
2018-10-10 19:04:27.605 7fcd21ae0780 INFO global src/daemon/rpc.h:96 Deinitializing core RPC server...
2018-10-10 19:04:27.605 7fcd21ae0780 INFO global src/daemon/p2p.h:90 Deinitializing p2p...
2018-10-10 19:04:28.685 7fcd21ae0780 INFO global src/daemon/core.h:103 Deinitializing core...
2018-10-10 19:04:28.688 7fcd21ae0780 INFO global src/daemon/protocol.h:75 Stopping cryptonote protocol...
2018-10-10 19:04:28.688 7fcd21ae0780 INFO global src/daemon/protocol.h:79 Cryptonote protocol stopped successfully

[moneromooo-monero]

32 bit machine ?

[oliverw]

It's Ubuntu in Windows Subsystem for Linux (WSL):

$ uname -a
Linux DESKTOP-2GKAJGE 4.4.0-17134-Microsoft #285-Microsoft Thu Aug 30 17:31:00 PST 2018 x86_64 x86_64 x86_64 GNU/Linux

I never had compatibility problems with it but you never know.

[moneromooo-monero]

o_O

Does this filesystem support (non buggy) mmap ?

[iDunk5400]

microsoft/WSL#658

[oliverw]

@iDunk5400 @moneromooo-monero Allright that explains it. Closing.

[hyc]

@iDunk5400 LMDB doesn't attempt to mmap zero length files (we already ran into that bug years ago and worked around it). This is more likely a more recent bug nimiq/core-js#387 (comment)

I worked with the NIMIQ guys to diagnose the problem.
https://twitter.com/hyc_symas/status/1013800256088215552

[DinoStray]

I got error like you,
First , I delete all data from testnet folder.
Then, start monerod with --testnet.

2018-10-16T10:36:06.878033334Z 2018-10-16 10:36:06.877 7fea613f4780 INFO net contrib/epee/include/net/abstract_tcp_server2.inl:917 Set server type to: 2 from name: P2P, prefix_name = P2P
2018-10-16T10:36:10.902571431Z 2018-10-16 10:36:10.902 7fea613f4780 INFO blockchain.db.lmdb src/blockchain_db/lmdb/db_lmdb.cpp:549 Percent used: 0.0104 Percent threshold: 0.9000
2018-10-16T10:36:10.903754650Z 2018-10-16 10:36:10.903 7fea613f4780 INFO global src/daemon/core.h:92 Core initialized OK
2018-10-16T10:36:10.903758513Z 2018-10-16 10:36:10.903 7fea613f4780 INFO global src/daemon/rpc.h:74 Starting core RPC server...
2018-10-16T10:36:10.903763095Z 2018-10-16 10:36:10.903 7fea613f4780 INFO net.http contrib/epee/include/net/http_server_impl_base.h:89 Run net_service loop( 2 threads)...
2018-10-16T10:36:10.903901838Z 2018-10-16 10:36:10.903 [SRV_MAIN] INFO global src/daemon/rpc.h:79 core RPC server started ok
2018-10-16T10:36:10.904956407Z 2018-10-16 10:36:10.904 [SRV_MAIN] INFO daemon src/daemon/daemon.cpp:174 Starting ZMQ server...
2018-10-16T10:36:10.904997884Z 2018-10-16 10:36:10.904 [SRV_MAIN] INFO daemon src/daemon/daemon.cpp:178 ZMQ server started at 127.0.0.1:28082.
2018-10-16T10:36:10.905014085Z 2018-10-16 10:36:10.904 [SRV_MAIN] INFO global src/daemon/p2p.h:78 Starting p2p net loop...
2018-10-16T10:36:10.905100783Z 2018-10-16 10:36:10.905 [SRV_MAIN] INFO net.p2p src/p2p/net_node.inl:636 Run net_service loop( 10 threads)...
2018-10-16T10:36:10.905107312Z 2018-10-16 10:36:10.905 [SRV_MAIN] INFO net.p2p src/p2p/net_node.inl:642 net_service loop stopped.
2018-10-16T10:36:10.905110189Z 2018-10-16 10:36:10.905 [SRV_MAIN] INFO global src/daemon/p2p.h:80 p2p net loop stopped
2018-10-16T10:36:11.907352507Z 2018-10-16 10:36:11.907 [SRV_MAIN] INFO global src/daemon/rpc.h:84 Stopping core RPC server...
2018-10-16T10:36:11.907537743Z 2018-10-16 10:36:11.907 [SRV_MAIN] INFO global src/daemon/daemon.cpp:190 Node stopped.
2018-10-16T10:36:11.907886310Z 2018-10-16 10:36:11.907 [SRV_MAIN] INFO global src/daemon/rpc.h:96 Deinitializing core RPC server...
2018-10-16T10:36:11.908057229Z 2018-10-16 10:36:11.907 [SRV_MAIN] INFO global src/daemon/p2p.h:90 Deinitializing p2p...
2018-10-16T10:36:11.908069098Z 2018-10-16 10:36:11.907 [SRV_MAIN] INFO net src/p2p/net_node.h:250 Killing the net_node
2018-10-16T10:36:11.908074304Z 2018-10-16 10:36:11.908 [SRV_MAIN] INFO net src/p2p/net_node.h:254 Joined extra background net_node threads
2018-10-16T10:36:15.912567110Z 2018-10-16 10:36:15.912 [SRV_MAIN] INFO net.p2p src/p2p/net_node.inl:2113 No IGD was found.
2018-10-16T10:36:15.912698437Z 2018-10-16 10:36:15.912 [SRV_MAIN] INFO global src/daemon/core.h:103 Deinitializing core...
2018-10-16T10:36:15.914132704Z 2018-10-16 10:36:15.914 [SRV_MAIN] INFO global src/daemon/protocol.h:75 Stopping cryptonote protocol...
2018-10-16T10:36:15.914155442Z 2018-10-16 10:36:15.914 [SRV_MAIN] INFO global src/daemon/protocol.h:79 Cryptonote protocol stopped successfully