In the depths of that dark day Tue Oct 23, the words of Andy Bastien were the beacon: > > I did find one thread that indicates that ACPI support is a factor at > http://www.uwsg.indiana.edu/hypermail/linux/kernel/0106.1/0721.html , > I currently have ACPI support disabled since I haven't found it > complete enough to be useful in the past, and if it's not useful I'd > rather keep it out of my kernel. I'll try a kernel with ACPI and see > if my machine still locks up with speedstep enabled.
I tried it, and ACPI didn't help. I compiled a new kernel, set my laptop to automatic mode and booted up at full speed. I was able to run glxgears (which does a good job of maintaining 100% cpu usage) for about 5 minutes before the cpu overheated and shut down; it never went to low power mode (the fan was operating and blowing out some very warm air). I rebooted with speedstep disabled, and ran glxgears for just under an hour, or until I was satisfied that I could run 100% cpu usage for an arbitrary (or at least a very long) period of time. Unfortunately I can't test the system with a 2.2 kernel since my root filesystem is reiserfs 3.6. If there is anybody else who can and is willing to try a similar experiment (100% cpu usage with 2.2 and 2.4 kernels with speedstep in automatic and disabled modes) I'd be interested to hear the results. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
