Messages in this thread | | | Date | Sun, 26 Jun 2005 00:37:15 +0200 | From | Pavel Machek <> | Subject | Re: [RFC] Fix SMP brokenness for PF_FREEZE and make freezing usable for other purposes |
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Hi! > > > I only know that this boots correctly since I have no system that can do > > > suspend. But Ray needs an effective means of process suspension for > > > his process migration patches. > > > > Any i386 or x86-64 machine can do suspend... It should be easy to get > > some notebook... [What kind of hardware are you working on normally?] > > Umm... Sorry to be so negative but that has never worked for me on lots of > laptops. Usually something with ACPI or some driver I guess... After > awhile I gave up trying.
You should be able to do acpi=off if it gives you a problem. Going with minimal drivers help, too...
> > Previous code had important property: try_to_freeze was optimized away > > in !CONFIG_PM case. Please keep that. > > Obviously that will not work if we use try_to_freeze for > non-power-management purposes. The code from kernel/power/process.c may > have to be merged into some other kernel file. kernel/sched.c?
You want to use it for process migration, right? Not everyone wants either software or process migration... We may want to keep overhead low for embedded systems...
Pavel
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