Re: [gentoo-user] Screwed up swap while trying to get hibernate working; help

["Joshua Murphy" <poisonbl@gmail.com>]

On Fri, Oct 31, 2008 at 10:41 PM, Walter Dnes <waltdnes@waltdnes.org> wrote:
> On Fri, Oct 31, 2008 at 01:51:58PM -0400, Joshua Murphy wrote
>
>> Umm... if you're hibernating to the same swap partition you're using
>> when the system's live... I'm pretty sure you can't do that... even if
>> everything does manage to fit, having sort out what belongs back in
>> ram and what doesn't ... it's not a very sane thing to expect the
>> kernel+userspace tools there to do. If I recall from last time I
>> considered setting it up on my system, software hibernate needs an
>> otherwise unused swap partition that's just a little bigger than the
>> amount of physical ram in your system.
>
>  Which begs the next question... howsabout if I turn swap off as part
> of the hibernation process?  I.e. in /etc/hibernate/hibernate.conf
> include the lines...
>
> OnSuspend 00 swapoff /dev/sda6
> OnResume  00 swapon  /dev/sda6
>
>  or for that matter, what's the worst that can happen if I turn off
> swap alltogether, and run out of memory?  Is it catastrophic, or merely
> inconvenient (additional programs refuse to launch)?
>
> --
> Walter Dnes <waltdnes@waltdnes.org>

Well, aside from pointing toward the place where I was corrected... I
*can* answer what happens when you run out of ram... or ram+swap,
actually, if you have swap. It can either kill processes of its own
accord or simply deny new processes and forks of old processes. The
article below has a much better explanation...

http://lwn.net/Articles/104179/

-- 
Poison [BLX]
Joshua M. Murphy