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rini17

sr. member

Activity: 340

Merit: 250

GO http://bitcointa.lk !!! My new nick: jurov

I have the same problem, got errors trying to use testnet with current HEAD from https://github.com/bitcoin/bitcoin.git :

Quote

received block 000000033cc282bc1fa9
ERROR: CheckProofOfWork() : nBits below minimum work
CheckBlock() : proof of work failed
ERROR: ProcessBlock() : CheckBlock FAILED
received block 000000037b21cac5d30f
ERROR: CheckProofOfWork() : nBits below minimum work
ERROR: CheckBlock() : proof of work failed
ERROR: ProcessBlock() : CheckBlock FAILED
disconnecting node 173.208.219.162
Disconnected 173.208.219.162 for misbehavior (score=100)

burger

full member

Activity: 195

Merit: 100

hmm... I downloaded the latest sources from git and now testnet3 works again... BTW I get testnet2 working as well with Bitcoin Wallet for android.

Was there a bug that collided these two networks?

Diapolo

hero member

Activity: 772

Merit: 500

I'm not sure where this bug is coming from, as the GUI client does:

Code:

int ClientModel::getNumBlocks() const
{
return nBestHeight;
}

and

Code:

int ClientModel::getNumBlocksOfPeers() const
{
return GetNumBlocksOfPeers();
}

Edit: I checked the debug.log and not a single node was reporting a version in the version message, that indicates, it even knows about a testchain reset.

Dia

burger

full member

Activity: 195

Merit: 100

I also have the same problem =( I compiled latest bitcoin-qt from github to test the new translations.

Gavin Andresen

legendary

Activity: 1652

Merit: 2301

Chief Scientist

Quote from: ?? on ??

That may very well be, but I'm generally surprised
to see that a testnet "reset" has so many dependencies
left on the old chain.

Would it be possible to have bitcoin-qt refuse
all testnet packets from a peer that identifies
as being below a certain version ?

Yes... but having peers with a completely different block chain from you connect is a good way to shake out obscure bugs. Like Bitcoin-Qt's "how many blocks are in the valid chain" code getting fooled...

Gavin Andresen

legendary

Activity: 1652

Merit: 2301

Chief Scientist

Quote from: ?? on ??

It quickly downloads the blockchain (about 6K blocks), then claims to be up to
date, and then, 30 seconds later claims to be 50K+ blocks behind.

Bitcoin-Qt ? Sounds like a bug in the "estimate how many blocks there are based on what your peers tell you" bug.

Diapolo

hero member

Activity: 772

Merit: 500

Gavin, is there any way, to send the old nodes on testnet an alert message to upgrade?

Dia

Gavin Andresen

legendary

Activity: 1652

Merit: 2301

Chief Scientist

I just got stuck-- looks like somebody is serving up the testnet2 blockchain to testnet3 nodes that connect to them (that's what is causing the 'nBits below minimum work' message).

Re-running to connect to a real testnet3 node is getting me the correct blockchain (with 6,905 blocks).

Diapolo

hero member

Activity: 772

Merit: 500

Quote from: znort987 on June 03, 2012, 04:17:42 PM

I'm running on testnet, and chain download gets stuck at ~53546 blocks remaining ...

Anyone knows why ?

Which is the last block you have? It seems my client is stuck, too and has 6897 blocks.

Edit: I'm seeing a few of these

Quote

06/04/12 09:19:20 ERROR: CheckProofOfWork() : nBits below minimum work
06/04/12 09:19:20 ERROR: CheckBlock() : proof of work failed
06/04/12 09:19:20 ERROR: ProcessBlock() : CheckBlock FAILED

Dia

Peter Todd

legendary

Activity: 1120

Merit: 1160

Testnet was recently reset; try upgrading your client.

znort987

vip

Activity: 72

Merit: 12

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