I have some static initializers that call VLOG. On Linux (but not on OSX) these cause a segfault because they happen before InitGoogleLogging is called. If I change the VLOG(1) bits to LOG(INFO) I get the expected WARNING: Logging before InitGoogleLogging() is written to STDERR message and I see the logs, but everything works fine.

Looking at things in a debugger it appears that the first call to VLOG causes a call to InitVLOG3__ which then calls VLOG2Initializer which tries to access a bunch of uninitialized variables (e.g. vmodule) and that causes a segfault.