Re: [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 3

Pavel Machek
2005-08-14T20:15:00Z

Hi!

> > > What happens when you disable it at runtime before suspending?
> > >
> > > echo 0 > /sys/devices/system/dyn_tick/dyn_tick0/enable
> >
> > This has no effect. The system stalls at exactly the same point. The
> > last lines on my screen are:
>
> Ok perhaps on the resume side instead. When trying to resume can you try
> booting with 'dyntick=disable'. Note this isn't meant to be a long term fix
> but once we figure out where the problem is we should be able to code around
> it.

Can you reproduce it using plain swsusp?

We probably need more carefull suspend/resume support on timer with dyntick
enabled.

With vanilla, timer just ticks on constant rate; no state to save.
With dyntick, however...
Pavel
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