I wanted to debug a test failing under jtreg. To do this, I need to avoid the timeout causing jtreg to kill the process will I am debugging it. Therefore, I specified a large integer for N, 100000. This was rejected:

Error: Bad parameters specified: The following configuration question requires a valid answer:
-- "Time Factor"
-- "Specify a time factor that is applied to each test's default timeout. For example, specifying "2" doubles the time for each test (the default is 1):"
The system tag for the question is "regtest.timeout.timeout".
Your response is currently set to "100,000".
Please update your configuration and try again.

I also tried 10000 and 1000, then I decided to file this bug. No limit is mentioned in the documentation, no limit is mentioned in the error, my input therefore conforms to documented restrictions, and should not fail.

I suggest that the behavior and the documentation should conform, and I see no purpose that is served by artificially capping the timeout factor.