On Thu, Apr 20, 2017 at 03:24:53PM +0200, Vitaly Kuznetsov wrote: > In this patch I suggest we set __max_logical_packages based on the > max_physical_pkg_id and total_cpus,
So my 4 socket 144 CPU system will then get max_physical_pkg_id=144, instead of 4. This wastes quite a bit of memory for the per-node arrays. Luckily most are just pointer arrays, but still, wasting 140*8 bytes for each of them. > this should be safe and cover all > possible cases. Alternatively, we may think about eliminating the concept > of __max_logical_packages completely and relying on max_physical_pkg_id/ > total_cpus where we currently use topology_max_packages(). > > The issue could've been solved in Xen too I guess. CPUID returning > x86_max_cores can be tweaked to be the lowerest(?) possible number of > all logical packages of the guest. This is getting ludicrous. Xen is plain broken, and instead of fixing it, you propose to somehow deal with its obviously crack induced behaviour :-( _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
