Messages in this thread | | | Date | Tue, 5 Apr 2016 16:24:33 +0200 (CEST) | From | Miroslav Benes <> | Subject | Re: [RFC PATCH v1.9 00/14] livepatch: hybrid consistency model |
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On Mon, 4 Apr 2016, Josh Poimboeuf wrote:
> > I'd add a fake signal facility for sleeping non-migrated tasks. This > > would accelerate a migration to a new universe. We have it in kgraft for > > quite some time and it worked out great. See > > lkml.kernel.org/r/1430739625-4658-9-git-send-email-jslaby@suse.cz which > > went with Jiri's kgraft-on-klp patch set. See also Oleg's reply as it is > > important (I changed kgraft implementation according to that). > > Ok, I'll look into sending a fake signal to remaining tasks.
Oh, do not worry about this one. I can prepare a patch once we discuss and review the rest. I think you have a lot on your plate even now.
There are several options how to do it. I think it would be nice not send a fake signal immediately. So we can...
1. do it after some time of waiting, or
2. we can have a knob in sysfs for an admin to send a fake signal if he does not want to wait anymore, or
3. (and this is crazy one) we can trace the progress of a migration and when there is none for several iterations we can send a signal
...
Miroslav
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