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Author Topic: overflow bug SERIOUS  (Read 35603 times)
knightmb
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August 15, 2010, 11:37:40 PM
 #41

[edit] Just saw your post, I'll build one to less than 74,000 then, should at least save you technical people a few minutes of downloading the new chain.  Wink
Just leave the old one alone!  Older is better.  What block number is it?  Anywhere from 60000-74000 is good.  The one that you've had available for a while has been vetted and is the best choice.
I've put the block number with the file, so you'll know exactly where each stops at. 

BitCoinBlocks_Linux_67309.zip
BitCoinBlocks_Windows_67300.zip

I've leave them be. Glad to know I could help  Smiley


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kencausey
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August 15, 2010, 11:45:26 PM
 #42

... It already is on block 74638. I assume that means that block is now a good one?

I had some confusion on this myself and got clarification in #bitcoin-dev:

The bad block was number 74638, the last good one was 74637.  The numbers start at 0, so when your client shows there are 74638 blocks then that means you have up to block number 74637, the last good one.

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August 15, 2010, 11:47:58 PM
 #43

Quote
Agree, wanted to do that for a long time, haven't had time to do it.

For now, you could also subscribe to the bitcoin-list mailing list.  It rarely gets used except for announcements like this and major new versions.

Subscribe/unsubscribe page:
http://lists.sourceforge.net/mailman/listinfo/bitcoin-list

Good Cheesy

Anyway I usually check the website, I was thinking to a solution for newbie-users ( that they are more to come on future )
A small bug can be a big problem with a network with a lot of newbie and/or not-informed users. ( and none of them will ever give a look to a source like this: http://lists.sourceforge.net/mailman/listinfo/bitcoin-list Tongue )

( sorry for my english, I hope you are still understanding me Grin )

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August 15, 2010, 11:59:36 PM
 #44

Updated and combined instructions:

1.  Stop generating immediately, close your current client if you have not updated to 0.3.10.

2.  Download 0.3.10:

http://www.bitcoin.org/download/bitcoin-0.3.10-win32-setup.exe
http://www.bitcoin.org/download/bitcoin-0.3.10-win32.zip
http://www.bitcoin.org/download/bitcoin-0.3.10-linux.tar.gz

SHA1 16645ec5fcdb35bc54bc7195309a1a81105242bb bitcoin-0.3.10-win32-setup.exe
SHA1 4f35ad7711a38fe8c880c6c9beab430824c426d3 bitcoin-0.3.10-win32.zip
SHA1 e3fda1ddb31b0d5c35156cacd80dee6ea6ae6423 bitcoin-0.3.10-linux.tar.gz

3. (optional)  Download a previously known good blockchain:

http://knightmb.dyndns.org/files/bitcoin/blocks/
http://rapidshare.com/files/413168038/BitcoinBlocks.torrent

and replace your blk0001.dat and blkindex.dat files with those from the relevant download for your platform.

3b.  If you don't download, delete or move the blk0001.dat and blkindex.dat files.

4.  Start 0.3.10 and watch it catch up to block 74637 and beyond and help restart things.

Edit:
Edit 2: Add more explanation

4b.  Currently the network has a combination of good and bad nodes (those running versions older than 0.3.10).  If you only connect to nodes running old versions, you will be stuck at 74638 blocks.  You can fix this by running the client with the options "-addnode=75.158.131.108 -addnode=99.27.237.13 -addnode=76.235.234.64 -addnode=74.137.15.169 -addnode=68.68.99.14".  This specifically connects you to a number of 'known good' nodes and ensures that you receive transactions generated within the network of updated clients.  As the number of out of date clients in the network decreases, this will become unnecessary.  If you want more nodes or just different ones, you can find a larger list at http://www.bitcoin.org/wiki/doku.php?do=show&id=74638_nodes .

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BitLex
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August 16, 2010, 12:12:36 AM
 #45

my forwarded node counts 74642 as i type (36conn.),
3 other nodes are still at 74638 (8conn. each)

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August 16, 2010, 12:20:59 AM
 #46

Ya know, in a way, this actually temporarily decreases the difficulty to generate blocks until everyone upgrades. Yeah, it'll be slower, but that just gives each client more time to try to generate the difficult hash.

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August 16, 2010, 12:29:55 AM
 #47

Question about fallout:  I had a transaction that I submitted after the bad block, using the bad block chain.

What is the status of that transaction?
From what I can tell, my (updated) sending client wallet shows the deducted amount.

Will it get reincorporated into the fixed chain, and will the recipient be able to spend it?

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August 16, 2010, 12:39:17 AM
 #48

I did all steps, now my client is 0.3.10 and it stopped at block 74638. Is all fine?

Please sir, give me any coin Smiley  135T7F27z7Mtvwffz359BE1zSfYgT1oJ8S
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August 16, 2010, 01:00:45 AM
 #49

Question about fallout:  I had a transaction that I submitted after the bad block, using the bad block chain.

What is the status of that transaction?
From what I can tell, my (updated) sending client wallet shows the deducted amount.

Will it get reincorporated into the fixed chain, and will the recipient be able to spend it?
Right, it will get reincorporated into the fixed chain.  The transaction won't disappear, it'll still be visible on both sides, but the confirmation count will jump back to 0 and start counting up again.

It's only if you generated a block in the bad chain after block 74638 that the 50 BTC from that will disappear.  Any blocks in the bad chain wouldn't have matured yet.
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August 16, 2010, 01:02:24 AM
 #50

I did all steps, now my client is 0.3.10 and it stopped at block 74638. Is all fine?
If you still show 74638 blocks then you aren't connected to any 0.3.10 nodes.  

For today, try adding these parameters: 
-addnode=75.158.131.108 -addnode=99.27.237.13 -addnode=68.68.99.14

See
http://bitcointalk.org/index.php?topic=828
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August 16, 2010, 01:02:35 AM
 #51

Most people running clients are not reading this message thread.  So...  Silly questions:

1) How will this continue to affect version 3.8.1 (pre-catastrophe) clients with bad block chain?
2) How will this affect clients that upgrade to 3.8.10 but don't remove their block chain files?
kencausey
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August 16, 2010, 01:06:13 AM
 #52

I added the addnode options and info about the 'stuck at 74638 blocks' issue at http://bitcointalk.org/index.php?topic=823.msg9595#msg9595

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satoshi
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August 16, 2010, 01:12:05 AM
 #53

Most people running clients are not reading this message thread.  So...  Silly questions:

1) How will this continue to affect version 3.8.1 (pre-catastrophe) clients with bad block chain?
2) How will this affect clients that upgrade to 3.8.10 but don't remove their block chain files?
1) Once more than 50% of the node power is upgraded and the good chain overtakes the bad, the 0.3.10 nodes will make it hard for any bad transactions to get any confirmations.
2) If you didn't remove your blk*.dat files, you're not helping to contribute to that 50%, and you'll still show bad transactions until the good chain overtakes the bad chain.
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August 16, 2010, 02:02:07 AM
 #54

Ya know, in a way, this actually temporarily decreases the difficulty to generate blocks until everyone upgrades. Yeah, it'll be slower, but that just gives each client more time to try to generate the difficult hash.

Of course, this happened right after the difficulty kicked up to 511.7, so all these new "good" blocks will have to contend with that.  And a good chunk of the network grind power is off on the wrong chain, so new blocks may take a lot longer than 10min to find.  At what point will the balancing figure this out and possibly kick the difficulty back down again?

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August 16, 2010, 02:16:10 AM
 #55

The bad chain is also slowed down as more nodes upgrade.

We've already generated 14 blocks since 74638.  The builds of 0.3.10 were uploaded about 2 and 3 hours ago.  Of the nodes I'm connected to, more than half are already 0.3.10.  I would say we probably already have more power than the bad chain.
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August 16, 2010, 02:22:05 AM
 #56

I'm chucking as much CPU at this as I can.  Yeah, bit of an unfair advantage I guess until everyone upgrades.  Lips sealed
My wife's PC already generated 2 of the new blocks (LOL), luck is on her side I guess.

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August 16, 2010, 02:28:57 AM
 #57

... Of the nodes I'm connected to, more than half are already 0.3.10. ...
That's great news! How did you figure that out, though? I was considering writing a client specially tailored to put itself out there and try to get as many people to connect as possible, then survey their versions and write out a log (in addition to all the normal bitcoin stuff).

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August 16, 2010, 02:38:21 AM
 #58

On Windows, findstr /c:"version message" debug.log

It looks like the bad chain was on block 74678 recently.  Can't wait to overtake it.

On the stats at http://nullvoid.org/bitcoin/statistix.php  there's been 5 blocks per hour in the last 3 hours.  We had a difficulty adjustment about a day ago that should have put it back to 6 blocks per hour.
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August 16, 2010, 02:39:55 AM
 #59

The bad chain is also slowed down as more nodes upgrade.

We've already generated 14 blocks since 74638.  The builds of 0.3.10 were uploaded about 2 and 3 hours ago.  Of the nodes I'm connected to, more than half are already 0.3.10.  I would say we probably already have more power than the bad chain.

I think it'd probably be a good idea still to come out with another version that rejects connections from older versions - otherwise the network might remain rather fragmented for a while. :/
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August 16, 2010, 02:50:00 AM
 #60

4b.  Currently the network has a combination of good and bad nodes (those running versions older than 0.3.10).  If you only connect to nodes running old versions, you will be stuck at 74638 blocks.  You can fix this by running the client with the options "-addnode=75.158.131.108 -addnode=99.27.237.13 -addnode=76.235.234.64 -addnode=74.137.15.169 -addnode=68.68.99.14"

http://www.bitcoin.org/wiki/doku.php?do=show&id=74638_nodes
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