Re: Back to the future.

[Kyle Moffett <mrmacman_g4@mac.com>]

On Apr 28, 2007, at 19:45:01, Linus Torvalds wrote:
> On Sun, 29 Apr 2007, Rafael J. Wysocki wrote:
>> Well, I'm not sure whether or not that still would have been the  
>> case if we had stopped to freeze kernel threads for the  
>> hibernation/suspend.
>
> Did you miss the email where Paul pointed out that Mac/PowerPC  
> didn't use to do any of this? And apparently never had any issues  
> with it? And probably worked more reliably several years ago than  
> suspend/hibernation
> does _today_?

Still works pretty reliably; the last time my PowerBook G4 was  
rebooted was 6 weeks ago.  Once every 60 suspends or so the kernel  
USB driver gets really confused and doesn't wake up the USB  
controller properly, leading to dead keyboard/mouse, but other than  
that I never have problems.  I wouldn't be surprised if I could  
comment out 90% of the "suspend" code and still have it work, the  
hardware in is is incredibly robust.  I can even swap batteries while  
it's in suspend-to-RAM, as long as I do it in less than 45 sec or so;  
I get around 6-7 days of suspend-to-RAM time on a full charge.

Cheers,
Kyle Moffett