[Bug 580757] Re: Hibernate/resume is very slow and work once

[mgl]

I have a similar problem.  I have a system with 4GB of RAM, and more
than sufficient space in a swap partition (about 8GB).  I can hibernate
more than once (at least twice), but if more than a small fraction of
the RAM is in use (e.g., say about 2GB or more), then the suspend to
disk process hangs.  It seems like it is about to shut down (e.g., USB
and wireless devices are turned off), but ultimately it never writes the
RAM to disk.  I can hear the CPU fan spinning up suggesting something is
taking alot of CPU processing, and there is infrequent disk activity
(but nothing like the consistently lit state of the disk indicator
during a successful hibernate).  After about 10 minutes or so, I gave up
and powered it down.  I could try letting it go longer, but that seems
pointless, as 10 minutes is ample time to close everything on the
desktop and shut down normally.

Is there something that tries to compress the RAM during the hibernate
process to conserve space?  If so, is there a way to disable that?

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Hibernate/resume is very slow and work once
https://bugs.launchpad.net/bugs/580757
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