bus error definition processor
A fatal failure in the execution of a machine language
instruction resulting from the processor
detecting an anomalous condition on its bus
. Such conditions include invalid address alignment (accessing a multi-byte number at an odd address), accessing a physical address
that does not correspond to any device, or some other device-specific hardware error. A bus error triggers a processor-level exception
translates into a "SIGBUS" signal
which, if not caught, will terminate the current process.