this seems suspect:
[   61.916143] ------------[ cut here ]------------
[   61.916157] WARNING: CPU: 0 PID: 31 at
/build/linux-eVPZfP/linux-3.19.0/arch/x86/kernel/check.c:140
check_for_bios_corruption+0x8d/0xd0()
[   61.916161] Memory corruption detected in low memory

Maybe some Mac firmware issue?