Another thing I've noticed are _thousands_ of these warnings: objtool: kernel/sched/core.o: preempt_schedule_irq()+0x20: function has unreachable instruction objtool: kernel/sched/core.o: preempt_schedule_irq()+0x27: function has unreachable instruction objtool: kernel/sched/core.o: preempt_schedule_irq()+0x2c: function has unreachable instruction objtool: kernel/sched/core.o: preempt_schedule_irq()+0x33: function has unreachable instruction objtool: net/ceph/pagevec.o: ceph_put_page_vector()+0x171: function has unreachable instruction objtool: net/ceph/pagevec.o: ceph_put_page_vector()+0x178: function has unreachable instruction objtool: net/ceph/pagevec.o: ceph_put_page_vector()+0x17d: function has unreachable instruction objtool: net/ceph/pagevec.o: ceph_put_page_vector()+0x184: function has unreachable instruction objtool: net/ceph/pagevec.o: ceph_get_direct_page_vector()+0xe2: function has unreachable instruction objtool: net/ceph/pagevec.o: ceph_get_direct_page_vector()+0xe9: function has unreachable instruction objtool: net/ceph/pagevec.o: ceph_get_direct_page_vector()+0xee: function has unreachable instruction objtool: net/ceph/pagevec.o: ceph_get_direct_page_vector()+0xf5: function has unreachable instruction objtool: net/ceph/pagevec.o: zero_user_segment()+0x120: function has unreachable instruction objtool: net/ceph/pagevec.o: zero_user_segment()+0x127: function has unreachable instruction objtool: net/ceph/pagevec.o: zero_user_segment()+0x12c: function has unreachable instruction objtool: net/ceph/pagevec.o: zero_user_segment()+0x133: function has unreachable instruction that's on an x86-64 allyesconfig kernel, with objtool merged to tip:master, using GCC 4.9.2: gcc version 4.9.2 20150212 (Red Hat 4.9.2-6) (GCC) Also, please prefix such warnings with the standard compiler prefix, something like this: kernel/sched/core.c: warning: objtool: preempt_schedule_irq()+0x20: function has unreachable instruction so that scripts/tools monitoring new build warnings can pick them up automatically? Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe live-patching" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
