Re: suspend to disk unreliable?

[Camaleón <noelamac@gmail.com>]

On Mon, 28 Jun 2010 21:45:30 +0200, lee wrote:

> On Mon, Jun 28, 2010 at 05:21:08PM +0000, Camaleón wrote:

>> Then you should read about how to debugg "swsusp" when restoration
>> fails :-)
> 
> The resuming didn't fail, but shortly after, the computer froze. 

And how do you interpret that? Do you see any line about the freeze and 
hibernation? As per your own subject on this thread, I'd say "yes".

> It'll have to be seen if there are any logfile entries in such a case. 
> But it's not something to play around with because it means a risk to 
> lose data.

But you *need* to play around this if you want to have a stable and 
secure hibernation. Sure, it's risky, but you have to balance what are 
your goals in setting up this to play correctly or just doing nothing and 
do not hibernate.

>> You should try all of them and choose the one that works better for
>> your hardware configuration.
> 
> This isn't something for playing trial and error. If you were to buy a
> car and the dealer told you that there are several ways to turn off the
> engine and that you need to figure out which way works best by trial and
> error, the risk being that you lose the car altogether, would you buy
> such a car?

There is _no dealer_ here. There is _no guarantee_. You did not buy a 
computer that was certified by the manufacturer to work and play nice 
with yor OS and power savings, didn't you?

>> Try ;-)
> 
> Why? It would be stupid to do the same thing again, expecting different
> results.

Try with "pm-hibernate" way.

But hey, is not me the one having problems with hibernation, I am just 
telling you what are your possible workarounds and alternatives >:-)

>> At least you will get all the errors dumped into "/var/log/pm-
>> suspend.log".
> 
> maybe, probably not ...

If you don't test it, you'll never know.

>> pm-hibernate will care about that.
> 
> Without the required tools installed?

What "required tools" are you referring to? 

***
Package: pm-utils
utilities and scripts for power management

This package provides simple shell command line tools to suspend and 
hibernate your computer.
*** 

>> They are different methods. I don't know the insides, just test both
>> and keep the one that works better.
> 
> No, I want to know first :)

Then read all the docs, manuals and FAQs. But then you'll have to put all 
your knowledge into real things ;-)

Greetings,

-- 
Camaleón