** Tags added: sts
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https://bugs.launchpad.net/bugs/1896350
Title:
nbd locks system?
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Hi Dan,
Thank you for your bug report. I just came across it now, as I just ran
into same issue too. Your reproducer works great, and I have started
debugging the issue. At this stage it doesn't seem to be a kernel bug,
or a qemu-nbd bug. I think the culprit is systemd-udevd or multipathd,
as
(The zero size problem mentioned above also occurs occasionally on
ubuntu 18.04, and the workaround is to add a sleep in the user script
after modprobe nbd, so that's really a separate problem.)
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On today's groovy snapshot (with the default kernel, 5.8.0-generic), the
original problem is still present; didn't seem to show up until 2nd run
of the bug script.
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Also seems to work fine on ubuntu 18.04 (fresh, fully updated).
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https://bugs.launchpad.net/bugs/1896350
Title:
nbd locks system?
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FWIW, running same script on ubuntu 16.04 seems to work better.
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https://bugs.launchpad.net/bugs/1896350
Title:
nbd locks system?
To manage notifications about this bug go to:
Here's the apport file from the VM (which is a very recent clean install);
for some reason I couldn't upload it with ubuntu-bug.
** Attachment added: "apport.linux-image-5.4.0-47-generic.0beq9kz0.apport"
