HelenOS sources

VECTOR_GP         220 kernel/arch/amd64/src/interrupt.c 	exc_register(VECTOR_GP, "gp_fault", true, (iroutine_t) gp_fault);
VECTOR_GP         242 kernel/arch/ia32/src/interrupt.c 	exc_register(VECTOR_GP, "gp_fault", true, (iroutine_t) gp_fault);