Right, narrowed this down to PIE now. I did 2 parallel builds of mozilla-central, both with DEB_BUILD_HARDENING=1, and 1 of these with DEB_BUILD_HARDENING_PIE=0.
The build with DEB_BUILD_HARDENING_PIE=0 works fine, and the other build deadlocks at startup
Right, narrowed this down to PIE now. I did 2 parallel builds of mozilla-central, both with DEB_BUILD_ HARDENING= 1, and 1 of these with DEB_BUILD_ HARDENING_ PIE=0.
The build with DEB_BUILD_ HARDENING_ PIE=0 works fine, and the other build deadlocks at startup