Ubuntu
linux-source-2.6.15 package

  1. Bug #30557
  2. Comment #18

Comment 18 for bug 30557

Revision history for this message
Julian Yap (julian-yap) wrote :

Further testing with the 386 kernel suggests to me that "running the -386 kernel makes everything run ok again. BenC suggests on irc that it's a SMP issue as that's all that's really different between -386 and -686."

I am now running the stock 386 kernel and it is a lot more CPU friendly:
julian@jubuntu:~$ uname -a
Linux jubuntu 2.6.15-21-386 #1 PREEMPT Fri Apr 21 16:43:33 UTC 2006 i686 GNU/Linux

So yes. I agree, it's a SMP issue. I have since reverted my /sys/module/processor/parameters/max_cstate to the previous value of 8.

Is there any reason why the 686 kernel is a SMP one?