medium10 pts · first answer countsfirmwareconcurrencyhardware-debugging

Bug disappears when you look

A rare data corruption disappears whenever you add printf calls or set breakpoints. What does this suggest and what tool fits better?

A.A compiler bug; switch to a different compilerB.A hardware fault; replace the boardC.A stack too large; reduce itD.A timing race; use GPIO toggles or trace to observe it

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Bug disappears when you look

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