Thomas Schwinge, le Thu 01 Oct 2009 17:24:55 +0200, a écrit : > On Thu, Oct 01, 2009 at 05:23:21PM +0200, Samuel Thibault wrote: > > Thomas Schwinge, le Thu 01 Oct 2009 17:00:43 +0200, a écrit : > > > > There's a bootstrap issue: Xen only provides 512KiB of spare bootstrap > > > > memory, which is not so much to build a pagetable covering 100s of MiB. > > > > > > But why did it work until now? > > > > Because PAE makes page tables twice bigger. > > Again: this system was already using PAE.
Ah, and with PAE you managed to boot with more memory? How big is your kernel? Actually, kernels without debugging symbols & such don't have the issue because while 512KiB is a minimum, the granularity is 4MiB, of which the kernel may or may not consume a lot. without debugging symbols, the kernel typically only consumes 1 or 2 MiB, which leaves plenty of room for the pagetable. Samuel
