Messages in this thread | | | Subject | Re: Some experience of linux on a Laptop | From | (Eric W. Biederman) | Date | 25 Jun 2001 02:38:22 -0600 |
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David Lang <david.lang@digitalinsight.com> writes:
> if you don't preserve things running in userspace what advantage do you > have over rebooting?
I use it as part of a bootloader. Allowing me to boot one kernel directly from another. I guess it really is a soft reboot that never touches any BIOS. I don't know if anyone else would get value from it.
> if you do preserve userspace stuff then you need to also preserve the > kernel state related to each user process (including network connections, > etc), and here you are back into the problem that the kernel structures > may change on you.
Preserving userspace without out any help from user space is quite a tricky business. Though with user space help it is fully doable though it may be a lot of work.
What I have doesn't address perserving user space. I offered because I didn't know what was wanted. An easy kernel upgrade without touching running processes or a just a fast way to get into a new kernel.
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