Crash: BerkeleyEnvironment::VerifyResult upon `loadwallet` #15030

issue bitcoinhodler opened this issue on December 23, 2018

bitcoinhodler commented at 6:03 AM on December 23, 2018: contributor


Problem

After creating a new wallet and running a series of operations concluding with unloadwallet, the next time that wallet is loaded with loadwallet, bitcoin-qt crashes after the following assertion fires:
```
bitcoin-qt: wallet/db.cpp:236: BerkeleyEnvironment::VerifyResult BerkeleyEnvironment::Verify(const string&, BerkeleyEnvironment::recoverFunc_type, std::__cxx11::string&): Assertion `mapFileUseCount.count(strFile) == 0' failed.
```
Recreating

See gist: loadwallet-crash.sh

This fails reliably for me on v0.17.0.1 release binaries, and also on my local build of v0.17.1rc1, on 32-bit Whonix 13.

Possibly related

#14572, #14850
fanquake added the label Wallet on Dec 27, 2018
etscrivner commented at 1:35 AM on January 10, 2019: contributor

Was not able to reproduce this on v0.17.1 on 64-bit Ubuntu. May be isolated to 32-bit Linux?
promag commented at 1:24 AM on February 5, 2019: member

#11911, #14941 #15297 are some of the changes related to unloading wallets, unfortunately these weren't released yet.
promag commented at 9:44 PM on June 2, 2019: member

@fanquake this is also fixed, the gist in the OP no longer causes the crash.
fanquake closed this on Jun 2, 2019
MarcoFalke locked this on Dec 16, 2021

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