7:37 a.m.
Below is what /proc/cpuinfo looks like on an Ultrasparc T1 running
Linux.
I haven't looked into it in detail yet, but the report from Dennis
Gilmore is that this breaks every libvirt command. Presumably we are
parsing /proc/cpuinfo at libvirt startup ...
(Initially reported by Dennis Gilmore)
Rich.
cpu : UltraSparc T1 (Niagara)
fpu : UltraSparc T1 integrated FPU
prom : OBP 4.29.0.a 2008/09/15 11:59
type : sun4v
ncpus probed : 32
ncpus active : 32
D$ parity tl1 : 0
I$ parity tl1 : 0
Cpu0ClkTck : 000000003b9aca00
Cpu1ClkTck : 000000003b9aca00
Cpu2ClkTck : 000000003b9aca00
Cpu3ClkTck : 000000003b9aca00
Cpu4ClkTck : 000000003b9aca00
Cpu5ClkTck : 000000003b9aca00
Cpu6ClkTck : 000000003b9aca00
Cpu7ClkTck : 000000003b9aca00
Cpu8ClkTck : 000000003b9aca00
Cpu9ClkTck : 000000003b9aca00
Cpu10ClkTck : 000000003b9aca00
Cpu11ClkTck : 000000003b9aca00
Cpu12ClkTck : 000000003b9aca00
Cpu13ClkTck : 000000003b9aca00
Cpu14ClkTck : 000000003b9aca00
Cpu15ClkTck : 000000003b9aca00
Cpu16ClkTck : 000000003b9aca00
Cpu17ClkTck : 000000003b9aca00
Cpu18ClkTck : 000000003b9aca00
Cpu19ClkTck : 000000003b9aca00
Cpu20ClkTck : 000000003b9aca00
Cpu21ClkTck : 000000003b9aca00
Cpu22ClkTck : 000000003b9aca00
Cpu23ClkTck : 000000003b9aca00
Cpu24ClkTck : 000000003b9aca00
Cpu25ClkTck : 000000003b9aca00
Cpu26ClkTck : 000000003b9aca00
Cpu27ClkTck : 000000003b9aca00
Cpu28ClkTck : 000000003b9aca00
Cpu29ClkTck : 000000003b9aca00
Cpu30ClkTck : 000000003b9aca00
Cpu31ClkTck : 000000003b9aca00
MMU Type : Hypervisor (sun4v)
State:
CPU0: online
CPU1: online
CPU2: online
CPU3: online
CPU4: online
CPU5: online
CPU6: online
CPU7: online
CPU8: online
CPU9: online
CPU10: online
CPU11: online
CPU12: online
CPU13: online
CPU14: online
CPU15: online
CPU16: online
CPU17: online
CPU18: online
CPU19: online
CPU20: online
CPU21: online
CPU22: online
CPU23: online
CPU24: online
CPU25: online
CPU26: online
CPU27: online
CPU28: online
CPU29: online
CPU30: online
CPU31: online
--
Richard Jones, Emerging Technologies, Red Hat http://et.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
7:48 a.m.
On Mon, Feb 09, 2009 at 01:37:14PM +0000, Richard W.M. Jones wrote:
Below is what /proc/cpuinfo looks like on an Ultrasparc T1 running
Linux.
I haven't looked into it in detail yet, but the report from Dennis
Gilmore is that this breaks every libvirt command. Presumably we are
parsing /proc/cpuinfo at libvirt startup ...
It shouldn't break libvirt startup AFAICT. We use this info for the
virNodeInfo command obviously, but also when starting a new guest for
purpose of CPU pinning. The latter is probably better off with us using
numactl or a sysconf() macro determine max # of pCPUs available, since
we don't need the full socket,core, thread topology in that context.
(Initially reported by Dennis Gilmore)
Don't suppose Dennis has a patch to add support for this ? He
mentioned he was going to work on one when this came up on IRC
a week or so back.
FWIW, we'll need to add logic to src/nodeinfo.c to make the
/proc/cpuinfo fields it looks for be architecture dependant
since this stuff varies across basically every architecture.
I expect ia64, ppc, s390, etc are all just as broken in this
regard.
Daniel
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7:58 a.m.
On Mon, Feb 09, 2009 at 01:48:58PM +0000, Daniel P. Berrange wrote:
On Mon, Feb 09, 2009 at 01:37:14PM +0000, Richard W.M. Jones wrote:
> Below is what /proc/cpuinfo looks like on an Ultrasparc T1 running
> Linux.
>
> I haven't looked into it in detail yet, but the report from Dennis
> Gilmore is that this breaks every libvirt command. Presumably we are
> parsing /proc/cpuinfo at libvirt startup ...
It shouldn't break libvirt startup AFAICT. We use this info for the
virNodeInfo command obviously, but also when starting a new guest for
purpose of CPU pinning. The latter is probably better off with us using
numactl or a sysconf() macro determine max # of pCPUs available, since
we don't need the full socket,core, thread topology in that context.
> (Initially reported by Dennis Gilmore)
Don't suppose Dennis has a patch to add support for this ? He
mentioned he was going to work on one when this came up on IRC
a week or so back.
No. I'm waiting to get some more details, and I also now have access
to his Sparc machine so I can test this myself.
Rich.
--
Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones
Read my OCaml programming blog: http://camltastic.blogspot.com/
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8:10 a.m.
OK so the report is that NOT all commands fail. 'virsh nodeinfo'
fails with:
libvir: error : no cpus found
Other commands work, eg. 'virsh list --all' is fine.
Rich.
--
Richard Jones, Emerging Technologies, Red Hat http://et.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
9:20 a.m.
New subject: [libvirt] Linux/sparc: brctl setfd fails, default network cannot start
Here's another error, starting the default network:
<dgilmore> libvir: error : internal error '/usr/sbin/brctl setfd virbr0 0'
exited with non-zero status 1 and signal 0: set forward delay failed: Operation not
supported
<dgilmore> Failed to autostart network 'default': internal error
'/usr/sbin/brctl setfd virbr0 0' exited with non-zero status 1 and signal 0: set
forward delay failed: Operation not supported
Trying to use brctl manually on the same machine:
# /usr/sbin/brctl setfd virbr0 0
set forward delay failed: Operation not supported
I'm getting info on what kernel version he's running.
Rich.
--
Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones
Read my OCaml programming blog: http://camltastic.blogspot.com/
Fedora now supports 68 OCaml packages (the OPEN alternative to F#)
http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora
10:26 a.m.
New subject: [libvirt] Linux/sparc: brctl setfd fails, default network cannot start
On Mon, Feb 09, 2009 at 03:20:06PM +0000, Richard W.M. Jones wrote:
Here's another error, starting the default network:
<dgilmore> libvir: error : internal error '/usr/sbin/brctl setfd virbr0 0'
exited with non-zero status 1 and signal 0: set forward delay failed: Operation not
supported
<dgilmore> Failed to autostart network 'default': internal error
'/usr/sbin/brctl setfd virbr0 0' exited with non-zero status 1 and signal 0: set
forward delay failed: Operation not supported
Trying to use brctl manually on the same machine:
# /usr/sbin/brctl setfd virbr0 0
set forward delay failed: Operation not supported
I'm getting info on what kernel version he's running.
Very odd, this smells like a kernel bug to me. I see no reason why the
'forward delay' parameter should not be available on Sparc, since this
bridge code is not arch specific. Perhaps a missing CONFIG option in
the Fedora sparc kernel build
Daniel
--
|: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :|
|: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :|
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6:49 a.m.
New subject: [libvirt] Linux/sparc: brctl setfd fails, default network cannot start
On Mon, Feb 09, 2009 at 03:20:06PM +0000, Richard W.M. Jones wrote:
I'm getting info on what kernel version he's running.
It is: 2.6.27.12-78.2.8.fc9.sparc64.smp
Rich.
--
Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones
virt-df lists disk usage of guests without needing to install any
software inside the virtual machine. Supports Linux and Windows.
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