On Sun, Oct 24, 2021 at 01:07:19AM -0700, Nathan Shearer wrote:
With my current setup, the issue is reproducible. If I start the nbdkit server by placing a startup script in /etc/local.d to start on boot, it will start, but the nbd-client will always hang during negotiation. Killing and restarting the server and/or the client does not resolve the deadlock.
However, if I run the exact same script manually, by logging into the server, then nbd-client is able to successfully connect to the nbdkit server and everything works as expected.
During my tests, I found that when I killed nbdkit, it would see errors about their being insufficient "magic" or an invalid password. I am not using any passwords, and both the nbdkit server and nbd-client are on the same host, connecting through 127.0.0.1
I'm a bit unclear - how does it hang? What happens if you enable verbose messages (-v), what messages are sent to the log? Also try connecting with LIBNBD_DEBUG=1 nbdinfo nbd://server and see where it hangs in negotiation. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://people.redhat.com/~rjones/virt-top