Displaying 2 results from an estimated 2 matches for "tap_ctl_open".
2013 May 08
9
blktap2 and qcow2 images
Hi There,
I''ve been trying to get this to work for the last couple of days, but found
no information on the internet that would help. Essentially, a tap-ctl
opencommand with a qcow2 image does not work (error code 2) and
produces the
following line in syslog:
tap-ctl: tap-err:tap_ctl_open: open failed, err -2
I have attached a shell script that reproduces the problem on my machine.
The same script works fine if I use image format raw and the aio: prefex to
the -a option.
My machine is basically a clean Ubuntu 12.04 desktop 64bit machine with
everything up to date.
Cheers,
Seb...
2013 Jul 15
8
[PATCH 0 of 7 v5] Introduce the tapback daemon (most of blkback in user-space)
This patch series introduces the tapback daemon, the user space daemon that
acts as a device''s back-end, essentially most of blkback in user space. The
daemon is responsible for coordinating the front-end and tapdisk. It creates
tapdisk process as needed, instructs them to connect to/disconnect from the
shared ring, and manages the state of the back-end.
The shared ring between the