Messages in this thread | | | Subject | Scheduler issue? | From | (Måns Rullgård) | Date | Fri, 15 Aug 2003 16:21:44 +0200 |
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First the machine details. It's a Pentium4 running at 2 GHz. Linux version 2.6.0-test3 + O15int + softrr.
I just experienced something that might be a scheduler problem. I was working in XEmacs, when suddenly the machine became very unresponsive. The mouse pointer in X moved sporadically. I could switch to a text console and log in, though typing lagged tens of seconds. Switching between text consoles was fast, though. I killed xemacs, and the system was back to normal. Further investigation showed that xemacs was stuck in a nasty regexp match. If I was quick enough, I could interrupt it with C-g.
With X and the window manager reniced to -10, they seem to be able to get their job done. This leads me to believe that maybe xemacs is considered interactive, and given too high priority when it suddenly starts burning the cpu.
I'll try it later with other kernel versions, but right now I don't want to reboot.
What can I do to collect more information about the problem?
-- Måns Rullgård mru@users.sf.net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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