8:16 a.m.
You need to read the instructions at the top, and download the
following appliance too:
http://libguestfs.org/download/binaries/appliance/appliance-1.18.9.tar.xz
So far I've filed the following bugs:
https://bugzilla.redhat.com/show_bug.cgi?id=875741
https://bugzilla.redhat.com/show_bug.cgi?id=877110
https://bugzilla.redhat.com/show_bug.cgi?id=877312
https://bugzilla.redhat.com/show_bug.cgi?id=877429
https://bugzilla.redhat.com/show_bug.cgi?id=877430
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines. Boot with a
live CD or over the network (PXE) and turn machines into Xen guests.
http://et.redhat.com/~rjones/virt-p2v
8:40 a.m.
On Fri, Nov 16, 2012 at 02:16:04PM +0000, Richard W.M. Jones wrote:
You need to read the instructions at the top, and download the
following appliance too:
http://libguestfs.org/download/binaries/appliance/appliance-1.18.9.tar.xz
So far I've filed the following bugs:
https://bugzilla.redhat.com/show_bug.cgi?id=875741
https://bugzilla.redhat.com/show_bug.cgi?id=877110
https://bugzilla.redhat.com/show_bug.cgi?id=877312
https://bugzilla.redhat.com/show_bug.cgi?id=877429
https://bugzilla.redhat.com/show_bug.cgi?id=877430
Thanks for the reproducer program, that should make life much easier.
Just to confirm, you're seeing these problems on both 1.0.0 and
current GIT master ?
Daniel
--
|: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org -o- http://virt-manager.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
8:48 a.m.
On Fri, Nov 16, 2012 at 02:40:31PM +0000, Daniel P. Berrange wrote:
On Fri, Nov 16, 2012 at 02:16:04PM +0000, Richard W.M. Jones wrote:
>
> You need to read the instructions at the top, and download the
> following appliance too:
>
> http://libguestfs.org/download/binaries/appliance/appliance-1.18.9.tar.xz
>
> So far I've filed the following bugs:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=875741
> https://bugzilla.redhat.com/show_bug.cgi?id=877110
> https://bugzilla.redhat.com/show_bug.cgi?id=877312
> https://bugzilla.redhat.com/show_bug.cgi?id=877429
> https://bugzilla.redhat.com/show_bug.cgi?id=877430
Thanks for the reproducer program, that should make life much easier.
Just to confirm, you're seeing these problems on both 1.0.0 and
current GIT master ?
Actually I'm testing libvirt-0.10.2.1-2.fc18.x86_64 & libvirt from
git, and seeing roughly the same set of problems with both. Didn't
try 1.0.0 at all.
To use libvirt from git, I'm doing:
killall libvirtd lt-libvirtd
~/d/libvirt/run ./test-parallel
Plus I should note a few things about my environment:
- Fedora 18
- 16 GB of RAM (if you don't have that, reduce NR_THREADS in the test)
- baremetal with KVM on a very fast Intel Sandybridge
(I doubt this is reproducible in a VM)
- I've configured core_pattern and ulimit to capture coredumps in /tmp
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages. http://libguestfs.org
8:50 a.m.
On Fri, Nov 16, 2012 at 02:48:03PM +0000, Richard W.M. Jones wrote:
Plus I should note a few things about my environment:
[..]
and news just in:
- reproducible on two different Intel machines (both F18 & baremetal)
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-top is 'top' for virtual machines. Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://et.redhat.com/~rjones/virt-top
9:31 a.m.
On Fri, Nov 16, 2012 at 02:48:03PM +0000, Richard W.M. Jones wrote:
On Fri, Nov 16, 2012 at 02:40:31PM +0000, Daniel P. Berrange wrote:
> On Fri, Nov 16, 2012 at 02:16:04PM +0000, Richard W.M. Jones wrote:
> >
> > You need to read the instructions at the top, and download the
> > following appliance too:
> >
> > http://libguestfs.org/download/binaries/appliance/appliance-1.18.9.tar.xz
> >
> > So far I've filed the following bugs:
> >
> > https://bugzilla.redhat.com/show_bug.cgi?id=875741
> > https://bugzilla.redhat.com/show_bug.cgi?id=877110
> > https://bugzilla.redhat.com/show_bug.cgi?id=877312
> > https://bugzilla.redhat.com/show_bug.cgi?id=877429
> > https://bugzilla.redhat.com/show_bug.cgi?id=877430
>
> Thanks for the reproducer program, that should make life much easier.
>
> Just to confirm, you're seeing these problems on both 1.0.0 and
> current GIT master ?
Actually I'm testing libvirt-0.10.2.1-2.fc18.x86_64 & libvirt from
git, and seeing roughly the same set of problems with both. Didn't
try 1.0.0 at all.
To use libvirt from git, I'm doing:
killall libvirtd lt-libvirtd
~/d/libvirt/run ./test-parallel
Plus I should note a few things about my environment:
- Fedora 18
- 16 GB of RAM (if you don't have that, reduce NR_THREADS in the test)
- baremetal with KVM on a very fast Intel Sandybridge
(I doubt this is reproducible in a VM)
- I've configured core_pattern and ulimit to capture coredumps in /tmp
I've run the test on several machines, and finally found one which
would reproduce the "Operation is not valid" bug. I don't see any
of the other BZs you list above occurring.
At least i can now investigate what's gone wrong with 877430
Daniel
--
|: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org -o- http://virt-manager.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
9:36 a.m.
On Fri, Nov 16, 2012 at 03:31:43PM +0000, Daniel P. Berrange wrote:
On Fri, Nov 16, 2012 at 02:48:03PM +0000, Richard W.M. Jones wrote:
> On Fri, Nov 16, 2012 at 02:40:31PM +0000, Daniel P. Berrange wrote:
> > On Fri, Nov 16, 2012 at 02:16:04PM +0000, Richard W.M. Jones wrote:
> > >
> > > You need to read the instructions at the top, and download the
> > > following appliance too:
> > >
> > > http://libguestfs.org/download/binaries/appliance/appliance-1.18.9.tar.xz
> > >
> > > So far I've filed the following bugs:
> > >
> > > https://bugzilla.redhat.com/show_bug.cgi?id=875741
> > > https://bugzilla.redhat.com/show_bug.cgi?id=877110
> > > https://bugzilla.redhat.com/show_bug.cgi?id=877312
> > > https://bugzilla.redhat.com/show_bug.cgi?id=877429
> > > https://bugzilla.redhat.com/show_bug.cgi?id=877430
> >
> > Thanks for the reproducer program, that should make life much easier.
> >
> > Just to confirm, you're seeing these problems on both 1.0.0 and
> > current GIT master ?
>
> Actually I'm testing libvirt-0.10.2.1-2.fc18.x86_64 & libvirt from
> git, and seeing roughly the same set of problems with both. Didn't
> try 1.0.0 at all.
>
> To use libvirt from git, I'm doing:
>
> killall libvirtd lt-libvirtd
> ~/d/libvirt/run ./test-parallel
>
> Plus I should note a few things about my environment:
>
> - Fedora 18
>
> - 16 GB of RAM (if you don't have that, reduce NR_THREADS in the test)
>
> - baremetal with KVM on a very fast Intel Sandybridge
> (I doubt this is reproducible in a VM)
>
> - I've configured core_pattern and ulimit to capture coredumps in /tmp
I've run the test on several machines, and finally found one which
would reproduce the "Operation is not valid" bug. I don't see any
of the other BZs you list above occurring.
At least i can now investigate what's gone wrong with 877430
Of the two machines I'm using, 877430 is most "popular" by far on the
slower machine. Segfaults in libvirtd also happen on the slower
machine, but much less regularly, and because of a configuration error
I didn't manage to catch a core dump yet.
875741 happens most frequently on the faster machine.
This might be caused by the relative speed or it might be because of
some other combination of installed software.
In any case, it takes at least 10 minutes on the faster machine (and
usually longer) to get an error.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming blog: http://rwmj.wordpress.com
Fedora now supports 80 OCaml packages (the OPEN alternative to F#)
http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora
10:21 a.m.
New subject: [libvirt] Easy reproducer for multiple races and segfaults in libvirtd [UPDATED]
- Move the socket close after virConnectClose. This was probably
what caused #877430, so that wasn't a real bug.
- Update some error messages.
- Turn off debugging by default. If it's working, it should be silent.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
New in Fedora 11: Fedora Windows cross-compiler. Compile Windows
programs, test, and build Windows installers. Over 70 libraries supprt'd
http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw
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