Bitcon 0.80 crashes near the end of syncing #2341

I installed the client and at around 3500hashes left it throws this exception. i reinstalled the client.. it hashed a few more blocks and then crashed. right now i reopened and from 3500 it went back to 6000... still waiting on crash

Problem signature: Problem Event Name: BEX Application Name: bitcoin-qt.exe Application Version: 0.8.0.0 Application Timestamp: 4d44aa00 Fault Module Name: StackHash_5861 Fault Module Version: 0.0.0.0 Fault Module Timestamp: 00000000 Exception Offset: PCH_AE_FROM_ntdll+0x00041318 Exception Code: c0000005 Exception Data: 00000008 OS Version: 6.2.9200.2.0.0.256.4 Locale ID: 1033 Additional Information 1: 5861 Additional Information 2: 5861822e1919d7c014bbb064c64908b2 Additional Information 3: f3d5 Additional Information 4: f3d5be0cad2787556264647dc02181c3

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This is in the "random crashes on Windows that we can't explain" category of bugs.

If you are a Windows developer willing to help out, please compile and run a debug version and see if you can get a stack trace.

Otherwise... I'm going to close this as "We'd love to fix it if we could, but we don't know what is broken so we can't."

I get the very same crash on starting Bitcoin-Qt built on windows with gcc 4.81 and WIN32_LEAN_AND_MEAN. win8 64

It does not even write a debug.log

As @gavinandresen says, without a stack trace (with symbols and line numbers) we can't do anything. You'll need to debug the issue yourself, especially if you build with your own toolchain and build options.

Hint for later: It could be I had 4.6 object files mixed in.