Geez what a let down. The author provides no details about the jammed virtual card reader at all. He just says he went home and a colleague fixed it…
So (sadly) TFA doesn’t say how they fixed it but a quick search finds this posting from Usenet in 1989 about a similar problem. Apparently they had to bring the system down to fix it, which I find hilarious.
Is there an anchor for the post?
Sorry, I don’t think so. Search for “jammed”. It’s not super informative or anything, just a funny anecdote.
This sounds like a relative of “lp0: On fire”.
What a teaser. Article never goes into how it happened or how it was debugged and solved.
I remembered a story about a haunted card reader.