Re: [Libguestfs] Error ret=-1 with EINTR in nbd_connect_systemd_socket_activation()

On Tue, Jul 12, 2022 at 05:33:41AM +0000, Motohiro Kawahito wrote: The program worked OK for me. I cleaned up a few things. The attached program contains my clean-ups. $ ./nbd Before nbd_create Before nbd_connect_systemd_socket_activation After nbd_connect_systemd_socket_activation size=8539292672 kill end However I'm using a slightly newer libnbd & qemu-nbd: libnbd-1.12.0-1.fc37.x86_64 qemu-img-6.1.0-14.fc35.x86_64 qemu-nbd should be cleaned up if you call nbd_close, otherwise it won't be cleaned up (eg. if you immediately exit on error). See: https://gitlab.com/nbdkit/libnbd/-/blob/e714b9a7403311a1a173a31d86234324e... nbdkit has a feature called --exit-on-error which means it will always be cleaned up when the parent process goes away, but qemu-nbd does not have this feature as far as I know. It would be a useful addition. https://libguestfs.org/nbdkit-captive.1.html#EXIT-WITH-PARENT Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html