Re: [libvirt-users] serial console locking for a domain (concurrent access = garbled output)
Ahh... Thank you Eric. That does look like the same issue. I had
searched through the open bugs here
https://bugzilla.redhat.com/buglist.cgi?component=libvirt&product=Red...
but it looks like 729940 is not view-able to the public (at least I
don't have permission to view it).
Thank you for the pointer!
Dusty Mabe
On Tue, May 1, 2012 at 3:12 PM, Eric Blake <eblake(a)redhat.com> wrote:
On 05/01/2012 12:51 PM, Dusty Mabe wrote:
> Hi,
>
> I am seeing an issue in libvirt-0.9.4-23.el6_2.7.x86_64.rpm where my
> virsh console output for a domain gets garbled because I have
> virt-manager running and it is also trying to access the serial device
> for the guest domain. Basically there is concurrent serial access and
> half the text ends up on one end while the rest ends up on the other
> end.
Sounds like you are running into the issue that was fixed for 0.9.11
with this patch:
commit 4716138229ae47c5492c13a8622b779889560fd7
Author: Peter Krempa <pkrempa(a)redhat.com>
Date: Thu Oct 6 12:24:47 2011 +0200
qemu: Add ability to abort existing console while creating new one
This patch fixes console corruption, that happens if two concurrent
sessions are opened for a single console on a domain. Result of this
corruption was that each of the console streams recieved just a part
of the data written to the pipe so every console rendered unusable.
and which is already present in the RHEL 6.3 beta build of libvirt,
thanks to https://bugzilla.redhat.com/show_bug.cgi?id=729940.
--
Eric Blake eblake(a)redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org