Mellanox CX-3 PRO with two ubuntu 16.04 physical servers got "KVM_DSM_MEMCPY failed -22" error #6
Description
Hi, we prepared an environemt of two phy hosts connected with each other by a pair of Mellanox CX-3 pro with a QFSP 40G cable.
We have test the rdma latency between each server by perftest (got 6us/iter about 192.168.100.11/24 pingpong 192.168.100.12/24). However, when we launch the giantVM among the two servers, we got the error "KVM_DSM_MEMCPY failed -22" foreground. Besides, we check the logs by dmesg, and got many errors which shown in below image.
Can any one help us to fix it? thank you.
besides, our shell script for launcing the giantVM is shown as below.
in 192.168.100.11:
./QEMU/x86_64-softmmu/qemu-system-x86_64 --nographic -hda ubuntu-server.img -cpu host -machine kernel-irqchip=off -smp 4 -m 4096 --enable-kvm -serial mon:stdio -local-cpu 2,start=0,iplist="192.168.100.11 192.168.100.12" -vnc :0
in 192.168.100.12:
./QEMU/x86_64-softmmu/qemu-system-x86_64 --nographic -hda ubuntu-server.img -cpu host -machine kernel-irqchip=off -smp 4 -m 4096 --enable-kvm -serial mon:stdio -local-cpu 2,start=2,iplist="192.168.100.11 192.168.100.12"