bitcoin-qt.exe fatal error - NSt8ios_base7faillureE - ReadCompactSize() #1513

When running the windows client 0.62 I get the following error shortly after the ''Loading Block Index...' screen:

A fatal error occured. Bitcoin can no longer continue safely and will quit.

EXCEPTION: NSt8ios_base7faillureE ReadCompactSize(): size too large

Problem signature: Problem Event Name: APPCRASH Application Name: bitcoin-qt.exe Application Version: 0.0.0.0 Application Timestamp: 4d44aa00 Fault Module Name: bitcoin-qt.exe Fault Module Version: 0.0.0.0 Fault Module Timestamp: 4d44aa00 Exception Code: 40000015 Exception Offset: 00ef4e1a OS Version: 6.1.7601.2.1.0.768.3 Locale ID: 6153 Additional Information 1: c4bb Additional Information 2: c4bb9ef13a8851680a056abd266bba35 Additional Information 3: 1095 Additional Information 4: 109595c20661a244f0b8c7c7a7fb1aa5

Running 0.62 on Win7, can send debug.log over if needed.

Your blk0001.dat or blkindex.dat file got corrupted somehow (did you run out of disk space perhaps?). To recover, backup your wallet.dat file, remove everything except for wallet.dat from the bitcoin data directory, and re-run.

Keeping this bug open, because it would be good to at least report a helpful error message in cases like this, and even better if bitcoin could recover itself. Pieter and Mike have both been working on complete re-writes of the block database, though, so spending time working on the current way we're doing things might be a waste of time.

Thanks Gavin.

This error has been happening to me every couple of months going back to maybe September 2011. I've always upgraded to the latest version hoping the bug would be gone (including clean re-installs) but for some reason I always comes back. It is a pain since the only way to recover is to delete all the block-chain files and re-download. My wallet was never affected though.

I don't think I ran out of space (although space is tight - I'm running on a 64GB SSD). Perhaps it has to do with the fact that I always send my laptop into 'sleep' mode while running the bitcoin client in the background?

Good to hear a rewrite of the block db is on the way. Sounds like that might fix the issue.

Speaking of the devil - the bitcoin client just unexpectedly crashed on me again. I have 5.54GB Free space on my SSD.

Debug.log:

http://dl.dropbox.com/u/1007482/debug.log

Error:

Problem signature: Problem Event Name: APPCRASH Application Name: bitcoin-qt.exe Application Version: 0.0.0.0 Application Timestamp: 4d44aa00 Fault Module Name: bitcoin-qt.exe Fault Module Version: 0.0.0.0 Fault Module Timestamp: 4d44aa00 Exception Code: 40000015 Exception Offset: 00efd58a OS Version: 6.1.7601.2.1.0.768.3 Locale ID: 6153 Additional Information 1: e403 Additional Information 2: e403e395f61488c484a049fbfa26e55d Additional Information 3: fdd5 Additional Information 4: fdd5fe2be60a02ae15c676188e0d931d

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I am able to restart the client without errors this time though, so it could be unrelated/different bug.

@nanpanman still got the problem?

No. I moved to a new computer no issues since. The previous one had an SSD that got progressively more corrupted so that might have been the culprit. On Mar 29, 2013 3:53 PM, "Birger Hedman" notifications@github.com wrote:

@nanpanman https://github.com/nanpanman still got the problem?

— Reply to this email directly or view it on GitHubhttps://github.com/bitcoin/bitcoin/issues/1513#issuecomment-15664454 .

@nanpanman hello, today I also have the same problem, when I try to transfer the bitcoin, the software was crashed and reminded the "A fatal error occured. Bitcoin can no longer continue safely and will quit.",I have the wallet.dat file, could you tell me how did you solve the problem?thanks much