Re: Back to the future.

Kyle Moffett
2007-04-29T03:44:29Z

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