https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65589
--- Comment #10 from felix.ospald at gmx dot de --- gcc still compiles, but I think I found the answer here: http://stackoverflow.com/questions/24219263/openmp-on-a-2-socket-system "The problem was due to a bug in Linux Kernel kernel 3.11.10-7. The bug may be due to how the kernel handles invalidating the TLB cache as pointed out by Hristo Iliev. I guessed that the kernel might be the problem because I read that there would be some improvements in Linux Kernel 3.15 for NUMA systems so I figured that the kernel version is important for NUMA systems. When the OP updated the Linux kernel of his NUMA system to 3.15.0-1 the problem went away." As we are running "3.11.10-25-desktop" this is probably the issue.
