[Bug 1542509] Re: /build/qemu-YZq7uh/qemu-2.3+dfsg/nbd.c:nbd_init():L670: Failed to set NBD socket

[Jignasha]

$ sudo dmesg

[116257.604122] systemd-sysv-generator[20102]: Overwriting existing symlink /run/systemd/generator.late/umountiscsi.service with real service
[116257.922912] systemd-sysv-generator[20153]: Overwriting existing symlink /run/systemd/generator.late/umountiscsi.service with real service
[116257.996768] nbd: registered device at major 43
[116258.225552] systemd-sysv-generator[20194]: Overwriting existing symlink /run/systemd/generator.late/umountiscsi.service with real service
[116258.545912] systemd-sysv-generator[20216]: Overwriting existing symlink /run/systemd/generator.late/umountiscsi.service with real service
[116263.958887] blk_update_request: I/O error, dev fd0, sector 0
[116263.958893] floppy: error -5 while reading block 0
[116324.660261] br100: port 4(vnet2) entered disabled state
[116324.662037] device vnet2 left promiscuous mode
[116324.662041] br100: port 4(vnet2) entered disabled state
[116396.555916] device vnet2 entered promiscuous mode
[116396.567809] br100: port 4(vnet2) entered forwarding state
[116396.567817] br100: port 4(vnet2) entered forwarding state
[116397.684084] kvm: zapping shadow pages for mmio generation wraparound
[116399.579847] kvm [27153]: vcpu0 disabled perfctr wrmsr: 0xc1 data 0xabcd
[172179.503248] br100: port 4(vnet2) entered disabled state
[172179.505056] device vnet2 left promiscuous mode
[172179.505060] br100: port 4(vnet2) entered disabled state
[172228.177299] device vnet2 entered promiscuous mode
[172228.189445] br100: port 4(vnet2) entered forwarding state
[172228.189474] br100: port 4(vnet2) entered forwarding state
[172229.355539] kvm: zapping shadow pages for mmio generation wraparound
[172231.225382] kvm [504]: vcpu0 disabled perfctr wrmsr: 0xc1 data 0xabcd

This is coming with all images
Lastly tried below image link
https://download.cirros-cloud.net/0.3.0/cirros-0.3.0-x86_64-disk.img

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https://bugs.launchpad.net/bugs/1542509

Title:
  /build/qemu-YZq7uh/qemu-2.3+dfsg/nbd.c:nbd_init():L670: Failed to set
  NBD socket

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