> -----Original Message----- > From: Linux on 390 Port [mailto:[email protected]] On Behalf Of > Agblad Tore > Sent: Tuesday, June 21, 2011 9:37 AM > To: [email protected] > Subject: Re: z/VM page space > > Just a perhaps crazy idea. > - Add new page volumes > - drain all old page vlumes to stop adding new data there > - for each Linux, one at a time change the reserved memory to the same > as memsize > (for this to work, z/VM now must restore all paged memory into real > memory) > - wait until this is done (hehe, have no clue here about the time or > how to check it out, sorry) > - remove that reserved memory (or is it dedicated?) > - and all new paging will we on the new page volumes > > Any chance this can work anyone ? :)
Nope. CP does some paging on it's own behalf that isn't associated with a virtual machine, so no amount of fiddling with virtual machines will free up those pages. CP has to be convinced to move them, and there's no external way outside CP to do that at the moment. Alan's suggestion is probably the most useful at this point -- visible pressure on IBM by everybody signing up as interested parties will likely get this fixed sooner than trying to speculate. This is Deep Magic Code; not to be trifled with lightly. Better to let Bill Holder worry about it. 8-) -- db ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
