gpg-agent crashes on Windows 10

Matthias Wachs wachs at
Tue Nov 15 17:19:51 CET 2016


after updating to Windows 10 on one of colleagues system gpg-agent crashes:

When trying to e.g. decrypt an email ("gpg testmail.eml") and entering the
passphrase, gpg-agent crashes with:

C:\Program Files (x86)\GnuPG\bin>gpg-agent --daemon --verbose
gpg-agent[6704]: Es wird auf Socket
`C:\Users\gi26get\AppData\Roaming\gnupg\S.gpg-agent' gehört
gpg-agent[6704]: gpg-agent (GnuPG) 2.1.12 started
gpg-agent[6704]: Handhabungsroutine 0x2 für fd 144 gestartet
gpg-agent[6704]: starting a new PIN Entry
gpg-agent[6704]: S2K calibration: 4485120 -> 109ms
Assertion failed!

Program: C:\Program Files (x86)\GnuPG\bin\gpg-agent.exe
Line 1873

Expression: stream->flags.writing

This application has requested the Runtime to terminate it in an unusual
Please contact the application's support team for more information.

In the application eventlog, the following event is logged

   C:\Program Files (x86)\GnuPG\bin\gpg-agent.exe
   C:\Program Files (x86)\GnuPG\bin\libgpg-error-0.dll

Did anyone notice this before? Is there a solution around?
I did not find anything in the bugtracker, so if not I am happy to file a bug
and provide more information if required.


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