Re: CONFIG_PM_TRACE corrupts RTC

[Pavel Machek <pavel@ucw.cz>]

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
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