Messages in this thread | | | Date | Fri, 28 Mar 2008 00:38:52 +0100 | From | Pavel Machek <> | Subject | Re: what's the incompatibility between hibernation and hotplug?memory |
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On Thu 2008-03-27 21:55:01, Rafael J. Wysocki wrote: > On Thursday, 27 of March 2008, Jeremy Fitzhardinge wrote: > > Pavel Machek wrote: > > > Hi! > > > > > > > > >>> I noticed that Kconfig warns that hibernation and hotplug memory are not > > >>> compatible. What's the issue? > > >>> > > >> Generally, we might not be able to handle memory unplugged at a wrong time > > >> (eg. after we've created the image). > > >> > > >> Which part of Kconfig says that exactly? > > >> > > > > > > Actually I believe it is simpler than that. We were not prepared to > > > deal with memory holes in hibernation code, so we just disabled it in > > > Kconfig... > > > > Doesn't that mean its generally incompatible with non-flatmem memory > > arrangements rather than hotplug memory specifically? > > No, it should work with NUMA nowadays, actually. > > Perhaps it's worth trying it with hotplug memory and see what problems arise?
Good. I believe it is good chance it will work with hotplug, too... as long as memory is not inserted/removed during suspend/resume. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html pomozte zachranit klanovicky les: http://www.ujezdskystrom.info/
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