nano using >99% of CPU!!!

oudent · 06-20-2004, 03:25 PM

What was going on???

I used nano earlier during the day and I came back to my computer to find that almost 100% CPU usage, and nothing running. Strangely this did not slow the computer at all, but it was strange. I ran "top" and found nano was responsible, though I had closed the Terminal it was running in earlier (probably why it was unhappy).

I just killed the process, and everything went back to normal.

Is this normal? Is this a bug? How do I find out what it was doing?

Mara · 06-20-2004, 03:41 PM

Try and leave it again. It shouldn't use so much processor power, especially when idle. So it looks it's a bug.

oudent · 06-21-2004, 08:15 PM

I've tried reproducing it and I can't

I can't see the problem would be with nano though...its such a small simple program, which leads me to think something else must have messed up. Either way, I guess its not worth putting too much time towards.

Thanks

Rudwardt · 06-22-2004, 09:52 PM

I don't know if it's the same issue, but if I use a sudo aptitude in a terminal window and don't exit the program but just close the window, I get the same (aptitude using 100% cpu). That is due to aptitude being a root process that can't be shut down from the terminal window which only has user privileges. I think aptitude then tries to do some I/O without having a terminal and thus starts munching cpu out of frustration.

As I said, it might not be related but it looks the same.
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Rud

oudent · 06-22-2004, 11:41 PM

That is exactly it. I can reproduce the problem. So would that be a bug? If so, I'm assuming that is with the terminal rather than nano.

Thanks, its good to know what happened.