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SubjectRe: CONFIG_PM_TRACE corrupts RTC
On Mon 2006-06-26 09:30:49, Linus Torvalds wrote:
>
>
> On Mon, 26 Jun 2006, Andrew Morton wrote:
> >
> > Oh, I thought it found some spare space in there somehow.
>
> I really tried. The fact is, the RTC chips have at least 114 bytes of
> NVRAM available in them, and most have more. Sadly, while from a hw
> standpoint it's non-volatile, the firmware I was testing with cleared it
> all (including the extended banks etc).
>
> > Making it `default y' was a bit unfriendly. How's about `default n' and
> > `depends on EMBEDDED'?
>
> We can certainly make it 'default n', and perhaps hide it behind
> EXPERIMENTAL (it's not really, but hey..). Not EMBEDDED, though, this is
> literally meant to help random people who have a dead machine on suspend
> be able to just turn this on, test suspend, and then when suspend causes a
> dead machine, just turn off power and reboot immediately again, and it
> will tell you which device was the last one to go through the resume
> cycle.

This should probably be hidden in kernel debugging submenu... or
perhaps even out of the config system. It is only useful if you hack
the .c code, anyway, no?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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