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| kernel || [[Seamless kernel upgrade]] || hard || xemul || Briefly — dump tasks (into memory), change the kernel w/ kexec, then restore tasks back. From the tasks and remote client perspective tasks has just stopped and then resumed on the newer kernel. Can be a good complement to the classic live-patching technology.
| kernel || [[Seamless kernel upgrade]] || hard || xemul || Briefly — dump tasks (into memory), change the kernel w/ kexec, then restore tasks back. From the tasks and remote client perspective tasks has just stopped and then resumed on the newer kernel. Can be a good complement to the classic live-patching technology.
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| crtools || Restore arbitrary process tree || hard || - || Need to restore any process tree, which could be created with help PR_SET_CHILD_SUBREAPER and CLONE_PARENT. Processes can share other resources [http://man7.org/linux/man-pages/man2/clone2.2.html clone(2)]. Look at [http://git.criu.org/?p=crtools.git;a=blob;f=test/zdtm/live/static/session02.c;hb=HEAD session02]. The task of resolving the given images into operations we might need to perform seem to be NP (not proven though).
| crtools || Restore arbitrary process tree || hard || - || Need to restore any process tree, which could be created with help PR_SET_CHILD_SUBREAPER and CLONE_PARENT. Processes can share other resources [http://man7.org/linux/man-pages/man2/clone2.2.html clone(2)]. Look at [https://github.com/xemul/criu/blob/master/test/zdtm/live/static/session02.c session02]. The task of resolving the given images into operations we might need to perform seem to be NP (not proven though).
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| crtools || C/R [[X applications]] || hard || Ruslan Kuprieiev || Dump/restore of graphical applications (see about [[integration]]). In case of X app part of its state is stored into the X-server. Need the way to fetch this state during dump and put this state back into the server on restore. Requires fixing the X-server software too.
| crtools || C/R [[X applications]] || hard || Ruslan Kuprieiev || Dump/restore of graphical applications (see about [[integration]]). In case of X app part of its state is stored into the X-server. Need the way to fetch this state during dump and put this state back into the server on restore. Requires fixing the X-server software too.