On Tue, 11 Apr 2017 11:23:07 +0200 Michal Hocko <mho...@kernel.org> wrote:
> On Tue 11-04-17 08:38:34, Igor Mammedov wrote: > > for issue2: > > -enable-kvm -m 2G,slots=4,maxmem=4G -smp 4 -numa node -numa node \ > > -drive if=virtio,file=disk.img -kernel bzImage -append 'root=/dev/vda1' \ > > -object memory-backend-ram,id=mem1,size=256M -object > > memory-backend-ram,id=mem0,size=256M \ > > -device pc-dimm,id=dimm1,memdev=mem1,slot=1,node=0 -device > > pc-dimm,id=dimm0,memdev=mem0,slot=0,node=1 > > I must be doing something wrong here... > qemu-system-x86_64 -enable-kvm -monitor telnet:127.0.0.1:9999,server,nowait > -net nic -net user,hostfwd=tcp:127.0.0.1:5555-:22 -serial > file:test.qcow_serial.log -enable-kvm -m 2G,slots=4,maxmem=4G -smp 4 -numa > node -numa node -object memory-backend-ram,id=mem1,size=256M -object > memory-backend-ram,id=mem0,size=256M -device > pc-dimm,id=dimm1,memdev=mem1,slot=1,node=0 -device > pc-dimm,id=dimm0,memdev=mem0,slot=0,node=1 -drive > file=test.qcow,if=ide,index=0 > > for i in $(seq 0 3) > do > sh probe_memblock.sh $i > done dimm to node mapping comes from ACPI subsystem (_PXM object in memory device), which adds memory blocks automatically on hotplug. you probably don't have ACPI_HOTPLUG_MEMORY config option enabled. > > # ls -l /sys/devices/system/memory/memory3?/node* > lrwxrwxrwx 1 root root 0 Apr 11 11:21 > /sys/devices/system/memory/memory32/node0 -> ../../node/node0 > lrwxrwxrwx 1 root root 0 Apr 11 11:21 > /sys/devices/system/memory/memory33/node0 -> ../../node/node0 > lrwxrwxrwx 1 root root 0 Apr 11 11:21 > /sys/devices/system/memory/memory34/node0 -> ../../node/node0 > lrwxrwxrwx 1 root root 0 Apr 11 11:21 > /sys/devices/system/memory/memory35/node0 -> ../../node/node0 > > all of them end in the same node0 > > # grep . /sys/devices/system/memory/memory3?/valid_zones > /sys/devices/system/memory/memory32/valid_zones:Normal Movable > /sys/devices/system/memory/memory33/valid_zones:Normal Movable > /sys/devices/system/memory/memory34/valid_zones:Normal Movable > /sys/devices/system/memory/memory35/valid_zones:Normal Movable >
