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Date: Wed, 3 Sep 2014 10:14:15 +0800
From: linhafieng <haifeng.lin@huawei.com>
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Subject: [Qemu-devel] vhost-user mmap failed
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To: qemu-devel@nongnu.org

hi,

I run the qemu-master(vhost-user v10)with the vapp(vhost-user v9).It says mmap failed,do you know why this happen?

./vhost -s /path/to/socket

Processing message: VHOST_USER_SET_MEM_TABLE
_set_mem_table
mmap: Invalid argument
mmap: Invalid argument
Got memory.nregions 2
Cmd: VHOST_USER_SET_VRING_NUM (0x8)
Flags: 0x1
state: 0 256

./x86_64-softmmu/qemu-system-x86_64 -m 2048 -object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on -numa node,memdev=mem -chardev socket,id=chr0,path=/path/to/socket  -netdev type=vhost-user,id=net0,chardev=chr0 -device virtio-net-pci,netdev=net0