Re: Suspending and resuming a single task

[Wojciech Moczulski <wmoczulski@gmail.com>]

Bernard Blackham napisał(a):
> On Mon, 2006-06-19 at 03:06 +0200, Wojciech Moczulski wrote:
> 
>>Matthew Garrett napisał(a):
>>
>>>http://cryopid.berlios.de/ ?
>>
>>OK, and if I want to parse the path to a file, where process state is saved,
>>to the kernel and let the kernel module restart the process? Is it possible to
>>do it this way (without building self-executable binary)?
> 
> 
> One of the earlier incarnations of CryoPID did more or less this - it
> generated an ELF file with segments as laid out in the original image,
> so that the kernel ELF loaded did all the dirty work. It still required
> an extra portion of code to be injected into the binary in order to
> restore registers, file descriptors, etc. I recall the main reason I
> switched away from it was to be able to compress the images.
> 
> If you're going to be modifying the kernel in order to resume processes,
> then implementing it as an binary format handler (fs/binfmt_*) may be
> what you're looking for.

I must say I didn't thought of it in this way. First version of my concept
assumned storing task state, restoring it later and get it running by creating
a new process by hand and rewriting necessary data.

Well, thank anyway.

Regards,
Wojciech