Bus Error

Definitions

1. A low-level runtime fault caused by invalid memory alignment or illegal memory access relative to the hardware bus architecture, especially on systems where such accesses are trapped. The phrase is familiar to systems programmers because it signals a very specific class of crash.

   In plain English: A crash caused by a low-level invalid memory access that the hardware rejects.

   Example: "The parser worked on x86, but ARM exposed a bus error the moment the unaligned read path executed."

Related Terms

• heap
• Pointer
• Memory Pool
• Copy-on-Write
• Dynamic Memory Allocation
• Heap Memory
• Bit Twiddler
• Custom Allocator