Jeremy Lavergne


Dovecot imap-login cannot allocate memory

After upgrading Amazon Linux, I was unable to login to IMAP hosted from Dovecot. In /var/log/maillog:

dovecot: imap-login: Error: dovecot/imap-login: error while loading shared libraries: failed to map segment from shared object: Cannot allocate memory

After poking around, increasing the vsz_limit was enough to allow imap-login to work again.


SBSAT is the University of Cincinnati's State-Based Satisfiability Solver.

My first contribution was creating a slider generator, which creates CNF files that cause the SAT solver to explore most of the search space prior to finding a solution.

PSPP is a free, open source alternative to SPSS.

This was the first package I added to MacPorts, and began providing installers for older Mac systems since.


I've been contributing to the MacPorts project since I joined in 2009.

During that time, each year I mentored in Google's Summer of Code:

The first port I ever maintained was PSPP, and since then I've picked up several other packages as I addressed tickets and used open source software—sometimes creating new ports of them for the Mac. I now maintain over 150 packages.

I've also helped push modifications to the core of MacPorts including SHA256 checksums and binary archives, all of which went live with MacPorts 2.0.