1:24 p.m.
Hi all,
I just did a fresh install of FC7 to see if xen would work out of the box.
Dom0 boots (with errors in the log - see below) and some Centos 4.4 domU
boots but are unseable (after recompiling the initrd image with the xen
driver preloaded) up to the famous long lasting error message "4gb seg
fixup". At that point it is dead
My question: what id the status of Xen for Fc7? Will it ever fly?
Is there a Linux distro that works out of the box ?
The last usable version I saw was for FC5 as of May 2006, after that all
version were badly broken and never fixed, I tested ALL of them for
fc5/fc6 and not a single one worked as published. Only home brewed
compiled version would work after weeks of trial and error.
Here what the log says from my out of the box install:
[root@paine xen]# cat xend.log
[2007-06-29 08:08:34 2567] INFO (SrvDaemon:331) Xend Daemon started
[2007-06-29 08:08:34 2567] INFO (SrvDaemon:335) Xend changeset: unavailable.
[2007-06-29 08:08:34 2567] INFO (SrvDaemon:342) Xend version: Unknown.
[2007-06-29 08:08:35 2567] DEBUG (XendDomainInfo:126)
XendDomainInfo.recreate({'max_vcpu_id': 0, 'cpu_time': 35199342574L,
'ssidref': 0, 'hvm': 0, 'shutdown_reason': 0, 'dying': 0,
'online_vcpus': 1, 'domid': 0, 'paused': 0, 'crashed': 0,
'running': 1,
'maxmem_kb': 4294967292L, 'shutdown': 0, 'mem_kb': 962164L,
'handle':
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], 'blocked': 0, 'name':
'Domain-0'})
[2007-06-29 08:08:35 2567] INFO (XendDomainInfo:143) Recreating domain
0, UUID 00000000-0000-0000-0000-000000000000. at /local/domain/0
[2007-06-29 08:08:35 2567] DEBUG (XendDomainInfo:2022) Storing VM
details: {'on_xend_stop': 'ignore', 'shadow_memory': '0',
'uuid':
'00000000-0000-0000-0000-000000000000', 'on_reboot': 'restart',
'image':
'(linux (kernel ))', 'on_poweroff': 'destroy',
'on_xend_start':
'ignore', 'on_crash': 'restart', 'xend/restart_count':
'0', 'vcpus':
'1', 'vcpu_avail': '1', 'name': 'Domain-0'}
[2007-06-29 08:08:35 2567] DEBUG (XendDomainInfo:873) Storing domain
details: {'name': 'Domain-0', 'console/limit': '1048576',
'vm':
'/vm/00000000-0000-0000-0000-000000000000', 'domid': '0',
'cpu/0/availability': 'online', 'memory/target': '962164',
'control/platform-feature-multiprocessor-suspend': '1'}
[2007-06-29 08:08:35 2567] DEBUG (XendDomain:443) Adding Domain: 0
[2007-06-29 08:08:35 2567] DEBUG (XendDomain:379) number of vcpus to use
is 0
[2007-06-29 08:08:35 2567] INFO (SrvServer:180) unix
path=/var/lib/xend/xend-socket
[2007-06-29 08:08:35 2567] DEBUG (XendDomainInfo:873) Storing domain
details: {'name': 'Domain-0', 'console/limit': '1048576',
'vm':
'/vm/00000000-0000-0000-0000-000000000000', 'domid': '0',
'cpu/0/availability': 'online', 'memory/target': '962164',
'control/platform-feature-multiprocessor-suspend': '1'}
[2007-06-29 08:08:35 2567] DEBUG (XendDomainInfo:957)
XendDomainInfo.handleShutdownWatch
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
VBD.set_device not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call: VBD.set_mode
not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call: VBD.set_type
not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
VM.get_auto_power_on not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
VM.set_auto_power_on not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
VM.set_VCPUs_max not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
VM.set_VCPUs_at_startup not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call: debug.get_all
not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
console.get_other_config not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
console.set_other_config not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
VIF.get_network not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
VIF.set_device not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call: VIF.set_MAC
not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call: VIF.set_MTU
not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
session.get_all_records not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call:
event.get_record not found
[2007-06-29 08:08:35 2567] WARNING (XendAPI:672) API call: event.get_all
not found
[2007-06-29 08:08:46 2567] INFO (XMLRPCServer:149) Opening Unix domain
socket XML-RPC server on /var/run/xend/xen-api.sock; authentication has
been disabled for this server.
[2007-06-29 08:08:46 2567] INFO (XMLRPCServer:149) Opening Unix domain
socket XML-RPC server on /var/run/xend/xmlrpc.sock.
Regards,
--
Frank Morane (Free Thinker)
http://www.adventuresinlegalland.com
http://www.lysanderspooner.org
http://thoreau.eserver.org
2:32 p.m.
Frank Morane wrote:
Hi all,
I just did a fresh install of FC7 to see if xen would work out of the box.
Dom0 boots (with errors in the log - see below) and some Centos 4.4 domU
boots but are unseable (after recompiling the initrd image with the xen
driver preloaded) up to the famous long lasting error message "4gb seg
fixup". At that point it is dead
I don't understand what you mean by "dead". Does the dom0 hang?
My question: what id the status of Xen for Fc7? Will it ever fly?
Is there a Linux distro that works out of the box ?
I've been running FC7's Xen here quite well with a Centos 5 guest
(amongst others). I haven't tried RHEL4 or Centos 4 as a guest though.
Rich.
--
Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/
Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod
Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in
England and Wales under Company Registration No. 03798903
10:05 a.m.
Richard W.M. Jones wrote:
Frank Morane wrote:
> Hi all,
>
> I just did a fresh install of FC7 to see if xen would work out of the
> box.
> Dom0 boots (with errors in the log - see below) and some Centos 4.4
> domU boots but are unseable (after recompiling the initrd image with
> the xen driver preloaded) up to the famous long lasting error message
> "4gb seg fixup". At that point it is dead
I don't understand what you mean by "dead". Does the dom0 hang?
No,
just the domU. It does nothing more once the "4gb seg fixup" start
spiting.
> My question: what id the status of Xen for Fc7? Will it ever fly?
> Is there a Linux distro that works out of the box ?
I've been running FC7's Xen here quite well with a Centos 5 guest
(amongst others). I haven't tried RHEL4 or Centos 4 as a guest though.
That is
my next step to test BUT I have a bunch of older Centos to
migrate so I would like to see them work on newer Xen version.
Thanks.
Rich.
--
Frank Morane (Free Thinker)
http://www.adventuresinlegalland.com
http://www.lysanderspooner.org
http://thoreau.eserver.org
3:47 a.m.
Frank Morane wrote:
Richard W.M. Jones wrote:
> Frank Morane wrote:
>> Hi all,
>>
>> I just did a fresh install of FC7 to see if xen would work out of the
>> box.
>> Dom0 boots (with errors in the log - see below) and some Centos 4.4
>> domU boots but are unseable (after recompiling the initrd image with
>> the xen driver preloaded) up to the famous long lasting error message
>> "4gb seg fixup". At that point it is dead
>
> I don't understand what you mean by "dead". Does the dom0 hang?
No, just the domU. It does nothing more once the "4gb seg fixup" start
spiting.
If you have a directory /lib/tls in the guest, try moving it out of the
way before the guest boots.
You could also try:
http://www.redhat.com/archives/fedora-xen/2006-November/msg00142.html
See also section 2.5.3 here:
http://www.cl.cam.ac.uk/research/srg/netos/xen/readmes/user/user.html#tex...
Let us know if any of this works.
Rich.
--
Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/
Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod
Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in
England and Wales under Company Registration No. 03798903
4:36 p.m.
Frank Morane wrote:
Hi all,
I just did a fresh install of FC7 to see if xen would work out of the box.
Dom0 boots (with errors in the log - see below) and some Centos 4.4 domU
boots but are unseable (after recompiling the initrd image with the xen
driver preloaded) up to the famous long lasting error message "4gb seg
fixup". At that point it is dead
My question: what id the status of Xen for Fc7? Will it ever fly?
Is there a Linux distro that works out of the box ?
Hmm. I'm running a F7 dom0 with the following domUs: NetBSD 3.1, FC6,
F7, and a very shaky Solaris 10 b44.
Xen 3.1 + F7 seems rock solid.
The last usable version I saw was for FC5 as of May 2006, after that all
version were badly broken and never fixed, I tested ALL of them for
fc5/fc6 and not a single one worked as published. Only home brewed
compiled version would work after weeks of trial and error.
Here what the log says from my out of the box install:
Are you sure you're not missing the domU's console? I noticed that with
at least the FC6 and F7 domUs, the boot output starts on the serial
console, then transfers to the graphical console. I'm not familiar with
the Centos domU's behavior, but it might be something to check.
9:17 p.m.
Mike wrote:
Frank Morane wrote:
> Hi all,
>
> I just did a fresh install of FC7 to see if xen would work out of the box.
> Dom0 boots (with errors in the log - see below) and some Centos 4.4 domU
> boots but are unseable (after recompiling the initrd image with the xen
> driver preloaded) up to the famous long lasting error message "4gb seg
> fixup". At that point it is dead
>
> My question: what id the status of Xen for Fc7? Will it ever fly?
> Is there a Linux distro that works out of the box ?
Hmm. I'm running a F7 dom0 with the following domUs: NetBSD 3.1, FC6,
F7, and a very shaky Solaris 10 b44.
Xen 3.1 + F7 seems rock solid.
> The last usable version I saw was for FC5 as of May 2006, after that all
> version were badly broken and never fixed, I tested ALL of them for
> fc5/fc6 and not a single one worked as published. Only home brewed
> compiled version would work after weeks of trial and error.
>
> Here what the log says from my out of the box install:
>
>
Are you sure you're not missing the domU's console? I noticed that with
at least the FC6 and F7 domUs, the boot output starts on the serial
console, then transfers to the graphical console. I'm not familiar with
the Centos domU's behavior, but it might be something to check.
I think this is a big problem, it happened to me.* Unfortunately, I was trying
on FC6 Test 2/3 so I was told to get the F7 release version and try that.
There is no clear step by step how to on how to build GUI-less domUs for FC6
or F7 (or more frustratingly, no notices that it is not possible), so many
people seem to be trying it and asking variations of the same question here,
the IRC channels for Fedora and Xen, the libvir mailing list, the Xen mailing
list, etc.
Can someone with the access rights put a clear unequivocal checklists or
statements on the libvir site and the F7 site with the steps that work and/or
don't work for creating domUs for normal people? Lots of people are in
GUI-less situations and trying F7/Xen and failing unnecessarily, its bad PR
for Xen and F7.
And kudos to those running everything under the sun on an F7 dom0, but can
someone give those of us who aren't in the secret club a break and publish a
full step-by-step of how you did it and some config files/settings. Did you
use a copy of the DVD** exactly as it was or change some magical files after
copying to disk? Has GUI-less domU installs or installs using a manually
assigned IPv4 address ever worked for anyone using an F7 dom0, if so how?
* [Along with the problem that the installer was crashing when manually
configuring an IPv4 address for an interface.] The released one still seems to
want the subnet mask in 32s rather than 255s.
** I also didn't know that a remote repo would fail during domU installs until
someone mentioned it among some other attempts at troubleshooting my install
failures.
Thanks to anyone who can help with this.
1:09 p.m.
On Fri, 29 Jun 2007 19:17:54 -0700 FCXen wrote:
F> > Are you sure you're not missing the domU's console? I noticed that
with
F> > at least the FC6 and F7 domUs, the boot output starts on the serial
F> > console, then transfers to the graphical console. I'm not familiar with
F> > the Centos domU's behavior, but it might be something to check.
F>
F> I think this is a big problem, it happened to me.* Unfortunately, I was trying
F> on FC6 Test 2/3 so I was told to get the F7 release version and try that.
F>
F> There is no clear step by step how to on how to build GUI-less domUs for FC6
F> or F7
I simply edit the xen config file and comment out the virtual frame buffer
line (vfb = [...]), and it works fine w/out a GUI...
2:46 p.m.
And kudos to those running everything under the sun on an F7 dom0,
but
can
someone give those of us who aren't in the secret club a break and
publish a
full step-by-step of how you did it and some config files/settings.
Wrapper for virt-install worked on F7 dom0 for FC6 and F7 domU
http://bewley.net/linux/fedora/xen/mkxen.sh
Did you
use a copy of the DVD** exactly as it was or change some magical files
after
I created a mirror by rsyncing another site. DVD copy should work fine.
copying to disk? Has GUI-less domU installs or installs using a
manually
assigned IPv4 address ever worked for anyone using an F7 dom0, if so
how?
I used DHCP.
** I also didn't know that a remote repo would fail during domU
installs until
someone mentioned it among some other attempts at troubleshooting my
install
failures.
My FC6 install was fine against my personal repo over HTTP. My F7 was fine, but quite
quite slow. I could watch the http access log and tell it was still working though.
My F7 kickstart file which hasn't been optimized but basically it looks like this:
## upgrade or install?
install
# upgrade
## comment out if you want the machine to wait for you to reboot manually
reboot
## install source on URL or CDROM?
url --url http://ks/fedora/linux/releases/7/Fedora/x86_64/os
#cdrom
## use text mode install since i'll be spying on the serial console
text
skipx
lang en_US.UTF-8
keyboard us
timezone America/Los_Angeles
## network setup
network --device eth0 --bootproto dhcp
#network --device eth1 --onboot no --bootproto dhcp
## we'll redo firewalling by hand later
firewall --enabled --port=22:tcp
## this could be annoying for now so leave it off
selinux --disabled
authconfig --enableshadow --enablemd5
## change this after install
rootpw something
################################################################################
# Setup the disk drives.
# Clear the Master Boot Record
zerombr
# nuke all existing partitions
clearpart --all --initlabel
# raw partition for boot and a LVM physical volume on remainder
part /boot --fstype ext3 --size=100
part pv.01 --size=1 --grow
# LVM setup on physical volume
volgroup VG0 pv.01
logvol / --fstype=ext3 --name=LVRoot --vgname=VG0 --size=512
logvol /var --fstype=ext3 --name=LVVar --vgname=VG0 --size=1024
logvol /var/www --fstype=ext3 --name=LVVarWww --vgname=VG0 --size=2048
logvol /usr --fstype=ext3 --name=LVUsr --vgname=VG0 --size=2048
logvol /home --fstype=ext3 --name=LVHome --vgname=VG0 --size=100
logvol swap --fstype swap --name=LVSwap --vgname=VG0 --size=512
# install grub
bootloader --location=mbr --driveorder=xvda --append="console=xvc0"
%packages
vim-enhanced
################################################################################
# Final Configuration
%post --nochroot
cp /tmp/ks.cfg /mnt/sysimage/root/install-ks.cfg
cp /proc/cmdline /mnt/sysimage/root/install-cmdline
%post
echo xvc0 >> /etc/securetty
# this was done auto on FC6 domU
echo "co:2345:respawn:/sbin/agetty xvc0 9600 vt100-nav" >> /etc/inittab
# we'll use these values in the extended final config
EMAIL=root@mail
DIST=f7
MAC_ADDR=`ifconfig eth0 | grep HWaddr | \
sed -e 's/^.*HWaddr \([A-Fa-f0-9:]*\).*$/\1/; s/:/-/g;'`
# put /tmp on swap cuz it's fast and junk goes away on reboot
echo -e "none\t\t\t/tmp\t\t\ttmpfs\tdefaults\t0 0" >> /etc/fstab
# setup root's profile
echo 'alias vi=vim' >> /root/.bash_profile
# I want to know about things...
echo -e "root:\t\t$EMAIL" >> /etc/aliases
newaliases
# tell daddy we are all done
cat /root/install.log /root/install-ks.cfg \
| mail -s "${DIST} ks install ${MAC_ADDR}" $EMAIL
--
Dale Bewley - Unix Administrator - Shields Library - UC Davis
GPG: 0xB098A0F3 0D5A 9AEB 43F4 F84C 7EFD 1753 064D 2583 B098 A0F3
7:17 a.m.
Dale Bewley wrote:
> And kudos to those running everything under the sun on an F7
dom0, but
> can
> someone give those of us who aren't in the secret club a break and
> publish a
> full step-by-step of how you did it and some config files/settings.
Wrapper for virt-install worked on F7 dom0 for FC6 and F7 domU
http://bewley.net/linux/fedora/xen/mkxen.sh
Wow, awesome, thanks. I will try this soon. Not interactive and not static IP
but great for server setups.
10:12 a.m.
Mike wrote:
--
Frank Morane (Free Thinker)
http://www.adventuresinlegalland.com
http://www.lysanderspooner.org
http://thoreau.eserver.org
Frank Morane wrote:
> Hi all,
>
> I just did a fresh install of FC7 to see if xen would work out of the box.
> Dom0 boots (with errors in the log - see below) and some Centos 4.4 domU
> boots but are unseable (after recompiling the initrd image with the xen
> driver preloaded) up to the famous long lasting error message "4gb seg
> fixup". At that point it is dead
>
> My question: what id the status of Xen for Fc7? Will it ever fly?
> Is there a Linux distro that works out of the box ?
>
Hmm. I'm running a F7 dom0 with the following domUs: NetBSD 3.1, FC6,
F7, and a very shaky Solaris 10 b44.
Xen 3.1 + F7 seems rock solid.
> The last usable version I saw was for FC5 as of May 2006, after that all
> version were badly broken and never fixed, I tested ALL of them for
> fc5/fc6 and not a single one worked as published. Only home brewed
> compiled version would work after weeks of trial and error.
>
> Here what the log says from my out of the box install:
>
>
>
Are you sure you're not missing the domU's console? I noticed that with
at least the FC6 and F7 domUs, the boot output starts on the serial
console, then transfers to the graphical console. I'm not familiar with
the Centos domU's behavior, but it might be something to check.
Ah!? This could be it, I will dig to unearth this topic as if what you
say is right, this could be it.
Thanks
10:29 a.m.
Mike wrote:
Frank Morane wrote:
> Hi all,
>
> I just did a fresh install of FC7 to see if xen would work out of the box.
> Dom0 boots (with errors in the log - see below) and some Centos 4.4 domU
> boots but are unseable (after recompiling the initrd image with the xen
> driver preloaded) up to the famous long lasting error message "4gb seg
> fixup". At that point it is dead
>
> My question: what id the status of Xen for Fc7? Will it ever fly?
> Is there a Linux distro that works out of the box ?
>
Hmm. I'm running a F7 dom0 with the following domUs: NetBSD 3.1, FC6,
F7, and a very shaky Solaris 10 b44.
Xen 3.1 + F7 seems rock solid.
> The last usable version I saw was for FC5 as of May 2006, after that all
> version were badly broken and never fixed, I tested ALL of them for
> fc5/fc6 and not a single one worked as published. Only home brewed
> compiled version would work after weeks of trial and error.
>
> Here what the log says from my out of the box install:
>
>
>
Are you sure you're not missing the domU's console? I noticed that with
at least the FC6 and F7 domUs, the boot output starts on the serial
console, then transfers to the graphical console. I'm not familiar with
the Centos domU's behavior, but it might be something to check.
Hi,
Ok I did add the console as explained in another post BUT it did not
solve the issue:
I added this line in /etc/inittab
# Required by Xen
co:2345:respawn:/sbin/mingetty console
I still can't get a console BUT I can access via ssh the booted domU;
then I saw nash using 95% of the cpu and I killed it.
The problem is that this is far from what I want since I cannot access
the domU via a console, when I try I get these:
printk: 185 messages suppressed.
4gb seg fixup, process ntpd (pid 1230), cs:ip 73:008ac17a
printk: 17121 messages suppressed.
4gb seg fixup, process ntpd (pid 1230), cs:ip 73:008ac17a
printk: 183 messages suppressed.
4gb seg fixup, process ntpd (pid 1230), cs:ip 73:008ac17a
and yes I have the "hwcap 0 nosegneg" in /etc/ld.so.conf.
There is critical information missing to get older generation (Centos 4)
domU booting on late FC5, FC6 and FC7.
Anyway, any additional hints will be appreciated.
Regards,
--
Frank Morane (Free Thinker)
http://www.adventuresinlegalland.com
http://www.lysanderspooner.org
http://thoreau.eserver.org
3:59 a.m.
Frank Morane wrote:
I still can't get a console BUT I can access via ssh the booted
domU;
then I saw nash using 95% of the cpu and I killed it.
The problem is that this is far from what I want since I cannot access
the domU via a console, when I try I get these:
printk: 185 messages suppressed.
4gb seg fixup, process ntpd (pid 1230), cs:ip 73:008ac17a
[...]
and yes I have the "hwcap 0 nosegneg" in /etc/ld.so.conf.
There is critical information missing to get older generation (Centos 4)
domU booting on late FC5, FC6 and FC7.
nosegneg only works if the kernel supports it, and as far as I can find
out, this capability was only added relatively recently (earlier this year).
http://www.uwsg.iu.edu/hypermail/linux/kernel/0704.2/2872.html
In addition, this flags affects how (or rather, which) glibc is
dynamically linked in to the binary. /sbin/nash is statically linked,
but /usr/sbin/ntpd is dynamically linked (at least on FC6, and I expect
on FC5 too).
So if you're getting the above messages concerning ntpd, then it sounds
a lot like you're still linking to a version of glibc which is using
negative offsets with segment register overrides, which is something
that Xen has to emulate, slowly.
As to how to fix this: In Debian the fix is well-known. Rename the
directory /lib/tls (on 64 bit Fedora: /lib64/tls) as /lib/tls.disabled,
and reboot the domU.
Rich.
--
Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/
Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod
Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in
England and Wales under Company Registration No. 03798903
8:50 a.m.
Also you might want to read through and add something to these bugs:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=243756
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=244730
Rich.
--
Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/
Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod
Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in
England and Wales under Company Registration No. 03798903
6164
days inactive
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12 comments
6 participants
participants (6)
-
Dale Bewley -
fcxen user -
Frank Morane -
Mike Carney -
Richard W.M. Jones -
Robert Story