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Failed to connect socket /tmp/nvme_server: No such file or directory : QEMU

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I am trying to create a VM using qemu with following command:

./qemu-system-x86_64 -hda /home/user/ubuntu-test.img -m 8G -smp 4 -monitor stdio -serial pty -chardev socket,path=/tmp/nvme_server,nowait,id=nvme_server -chardev socket,path=/tmp/dma_server,nowait,id=dma_server -device nvme_ctrl,serial=deadbeef,cmb_size_mb=1024,chardev=nvme_server,dmadev=dma_server -gdb tcp::12345 -D my.log --enable-kvm

But I see the following error:

qemu-system-x86_64: -chardev socket,path=/tmp/nvme_server,nowait,id=nvme_server: Failed to connect socket /tmp/nvme_server: No such file or directory

Please help

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