On Thu, 6 Nov 2008 09:14:41 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote: > Ok, please consider "when memory hotplug happens." > > In general, it happens when > 1. memory is inserted to slot. > 2. the firmware notifes the system to enable already inserted memory. > > To trigger "1", you have to open cover of server/pc. Do you open pc while the system > starts hibernation ? for usual people, no. > > To trigger "2", the user have special console to tell firmware "enable this memory". > Such firmware console or users have to know "the system works well." And, more important, > when the system is suspended, the firmware can't do hotplug because the kernel is sleeping. > So, such firmware console or operator have to know the system status. > > Am I missing some ? Current linux can know PCI/USB hotplug while the system is suspended ? > *OFFTOPIC* I hear following answer from my friend. - hibernate the system => plug USB memory => wake up the system => panic. - hibernate the system => unplug USB memory => wake up the sytem => panic. Thanks, -Kame _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
