Suspending a process into disk?

Suspending a process into disk?

[Taylan Akdogan]

Hello All,

I was wondering, if suspending a specific process into disk and
resuming from the disk after a reboot is possible.  Let's assume
that the process in question has a couple of open files for r/w,
say on ext2, if it makes difference, and it isn't using any
network connection.

It could be very useful, if you have to reboot the system while
your cpu-monster application is running for a long time...
Sometimes, I have to delay a necessary (minor) kernel update
because of week-long processes.

Regards,
Taylan

---=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=---
Taylan Akdogan              Massachusetts Institute of Technology
akdogan@mit.edu                             Department of Physics
---=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=---

Re: Suspending a process into disk?

[Hua Zhong]

Please check http://www.checkpointing.org.  There are several projects
listed there.

Current general kernel level checkpointing support is still limited (i.e.,
doesn't support all applications in all cases).  Two projects you may want
to check: epckpt (a kernel patch) and CRAK (a kernel module).

-Hua

----- Original Message -----
From: "Taylan Akdogan" <akdogan@mit.edu>
To: <linux-kernel@vger.kernel.org>
Sent: Monday, August 20, 2001 2:04 PM
Subject: Suspending a process into disk?


> Hello All,
>
> I was wondering, if suspending a specific process into disk and
> resuming from the disk after a reboot is possible.  Let's assume
> that the process in question has a couple of open files for r/w,
> say on ext2, if it makes difference, and it isn't using any
> network connection.
>
> It could be very useful, if you have to reboot the system while
> your cpu-monster application is running for a long time...
> Sometimes, I have to delay a necessary (minor) kernel update
> because of week-long processes.
>
> Regards,
> Taylan
>
> ---=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=---
> Taylan Akdogan              Massachusetts Institute of Technology
> akdogan@mit.edu                             Department of Physics
> ---=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=---
>
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