When a "trivial" bug becomes lethal .

[Faust]

I saw this on Hacker News today .

Radiotherapy machine runs out of control with disastrous consequences

https://blog.bugsnag.com/bug-day-race-c ... therac-25/

Bad coding , poor testing and inadequate training of end-users of the system .
A very sorry tale indeed , and a salutary lesson !

[catweazel]

Radiotherapy machine runs out of control with disastrous consequences

[lsemmens]

There were a few other linked articles relating to software problems. Fortunately I've only had one critical bug in software i developed way back before Windows became an OS in its own right. Then It was a dBase program that failed when the end of month stats were produced. After trawling through thousands of lines of code, I found that I'd missed one full stop. Fortunately no lives depended upon my code, nor were there Millions of dollars involved. It does go to show how an innocuous thing like a full stop can bring the whole house of cards down.