xen October 2006

xen@lists.fedoraproject.org

59 participants
64 discussions

initscripts, xen and bonding
by Axel Thimm 04 Mar '07

04 Mar '07

Hi, I'm having a hard time getting bonding to work on FC5t3. It looks like the bond0 interface bond0 is renamed to pbond0 by xen [*] and the enslaving does not work anymore then. It works if I log on the terminal and ifenslave the devices to pbond0 instead of bond0 after the boot process has finished. But I want this to be handled automatically during reboots, so I tried assigning the bonding slaves to pbond0 as a master in the ifcfg-eth{0,1} scripts, but that doesn't work. What is causing the bond0 rename and should this renaming be considered by initscript? Is this a user error or should I file this against bugzilla? xen or initscripts? Thanks! [*] The only reference I found was a Japanese site and google's translation of it. http://translate.google.com/translate?hl=en&sl=ja&u=http://hoop.euqset.org/… -- Axel.Thimm at ATrpms.net

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Simple testing results for Xen and VMX on FC5-test2.
by You, Yongkang 12 Jan '07

12 Jan '07

Hi all, I have done a simple checking for Xen and VMX on FC5-test2. Basically, I can create VMX on FC5-test2 IA32. But FC5-test2 IA32e (x86-64) doesn't provide Xen and Xen0 kernel, so didn't do Xen and VMX testing for it. Beside of testing Xen and VMX, I also found some issues about installation, which I have updated the bug #179078 as a NB. The following is the testing results only for Xen and VMX. ========================= 1. *** IA32E hasn't RPMS about Xen hypervisor and Xen0/XenU kernels. __FAIL__ 2. *** In order to boot up IA32 Xen0, I have to add pci=noacpi as the boot parameters of Xen0 kernel, or system will hang when initial PCI. I don't know if it is only related to my Machine. __FAIL__ 3. After install IA32 Xen RPMs, I can see /boot/grub/grub.conf has been changed with Xen kernels. __PASS__ 4. *** /usr/lib/xen/boot/vmxloader isn't in the RPM package, so VMX Guest couldn't be created. I suspected build system hasn't bcc, it is from DEV86 package. __FAIL__ 5. After copy a useable vmxloader to the destination, IA32 VMX Guest can be created successfully! __PASS__ 6. VMX has good network connection and Xwindows started. __PASS__ 7. XenU can be created and works well. __PASS__ 8. Couldn't get Xen Changeset by "xm info" or "xm dmesg". 9. The new kernel names of Xen/Xen0/XenU seemed a little confused. E.g. the Xen0 name is like vmlinuz-2.6.15-1.29_FC5hypervisor. I thought hypervisor is for Xen.gz. Xen0 is the Service OS. ========================== Any comments please let me know. But I will have 8 days holiday from tomorrow, so emails reply might be slow and occasional. [FYI] We are planning to do more testing for FC5-test3. Best Regards, Yongkang (Kangkang) 永康

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Console Hang On Boot Using 2.6.18-1.2200.fc5xenU
by Stan Larson 05 Nov '06

05 Nov '06

Sorry if this is a repeat. I haven't found searchable archives for this forum yet. 1. I installed FC5 + xen on a base system and performed "yum -y upgrade". 2. I then created and booted a DomU using the original FC5 disk. So far, so good. 3. In the DomU, I performed "yum -y upgrade" and rebooted the DomU using the new kernel, 2.6.18-1.2200.fc5xenU. The DomU boots OK, but returns control or starts a shell. The console starts all services and then just hangs. I can ssh into the domain from another window and all is well. If I break from the console using CRTL-] and then return using xm console, I'm still stuck. If I boot to the old kernel (the one provided by the FC5 install disk, aka 2.6.15-1.2054_FC5xenU) the problem doesn't occur. Any suggestions? -- Stan Larson I/S Manager Freedom Sales & Marketing P: (727) 835-1150 F: (727) 835-1151 stan(a)freedomics.com www.freedomics.com

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FC5 updated Xen RPMs in updates-testing
by Daniel P. Berrange 31 Oct '06

31 Oct '06

Hi Folks, After working through the many many BZ tickets & mailing list threads on the subject of broken FC5 kernel-xen / xen recently, I've finally got new packages available in updates-testing for wider testing. Design to work against the latest 2.6.18-1.2200.fc5 kernels is: xen-3.0.3-1.fc5 (fixes the xen userland in general) kudzu-1.2.34.5-1 (ensure that agetty is started on xen serial console) The two related update notices are on fedora-test-list: http://www.redhat.com/archives/fedora-test-list/2006-October/msg01060.html http://www.redhat.com/archives/fedora-test-list/2006-October/msg01056.html Note, with these updates you can now use the full graphical framebuffer in para-virt guests too. Just add 'vnc=1' in the guest config. As with FC6 it listens on 127.0.0.1 by default, which can be changed with a config param vnclisten=0.0.0.0, although if doing that its wise to also add the vncpassword='XYZ' parameter too. The 'vncunused=1' parameter will make it auto-pick the first unused VNC display, rather than hardcoding the port to be 5900+domid. Regards, Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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kernel-xen0-2.6.18-1.2200.fc5 amusingly unhappy
by Matt Bernstein 31 Oct '06

31 Oct '06

[root@hyperion ~]# cat /proc/version Linux version 2.6.18-1.2200.fc5xen0 (brewbuilder(a)hs20-bc2-3.build.redhat.com) (gcc version 4.1.1 20060525 (Red Hat 4.1.1-1)) #1 SMP Sat Oct 14 17:49:47 EDT 2006 [root@hyperion ~]# getenforce Permissive [root@hyperion ~]# xm list Error: Error connecting to xend: No such file or directory. Is xend running? [root@hyperion ~]# /etc/init.d/xend status xend is running Reverting to 2.6.17-1.2157_FC5xen0 fixes this problem.

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RE: [Fedora-xen] does fully virtualized work?
by Ranganathan, Shobha 30 Oct '06

30 Oct '06

Did you try xm create "domain_name" ? I have FC5 unmodified guest running in host FC6 Test2 .. Regards Shobha Ranganathan "The significant challenges we face cannot be resolved at the same level of thinking we were at when we created them." Albert Einstein -----Original Message----- From: fedora-xen-bounces(a)redhat.com [mailto:fedora-xen-bounces@redhat.com] On Behalf Of Justin Conover Sent: Saturday, October 28, 2006 12:44 PM To: Fedora-xen(a)redhat.com Subject: [Fedora-xen] does fully virtualized work? I create one, the install goes fine, as it is installing I see it with (xm list). I hit reboot in the installer after it is finished, then it just dissappears. xm list Domain-0 You can see the file created in the install_dir

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Brigde configuration
by Tiago Cruz 30 Oct '06

30 Oct '06

Hello again fedora-guys! I'm getting one strange problem with FC5 running on XEN 3.0.3 x64, and I suspect of my bridge configuration (I never did this before on fedora): File sysconfig/network-scripts/ifcfg-eth0: DEVICE=eth0 TYPE=Ethernet BRIDGE=xenbr0 ONBOOT=yes File sysconfig/network-scripts/ifcfg-xenbr0: DEVICE=xenbr0 TYPE=BRIDGE BOOTPROTO=dhcp ONBOOT=yes Is it correct this bridge configuration? Because I have a lot of messages on my console, like this (dmesg): printk2: 2 messages suppressed vif0.0: "received packet with own address as source address" printk2: 4775 messages suppressed vif0.0: "received packet with own address as source address" printk2: 165845 messages suppressed vif0.0: "received packet with own address as source address" printk2: 186540 messages suppressed xenbr0: port 3(eth0) entering disabled state xenbr0: port 1(vif0.0) entering disabled state device eth0 left promiscuous mode audit(1161983401.126:10): dev=eth0 prom=0 old_prom=256 auid=4294967295 xenbr0: port 3(eth0) entering disabled state And the worst part: The MRTG point to my machine with XEN running one absurd volume of output data sent (normal is around 6 MB/s) and when XEN is working we get 80 MB/s until my DRAC is alive... after this, the machine crash, DRAC stop to reply, swith stop do work together... Anyone knows whats happening now? ;) Many thanks for any comments! Tiago Cruz

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What is the magic mount sauce?
by Paul Clark 30 Oct '06

30 Oct '06

I want to mount my local CDROM to create a new guest using the Paravirtualization. Other parameters are RAM=512mb, disk=5gig, and cpu=1. I have tried the HTTP and NFS protocols. I was able to access the drive and files from another machines so I know I have the network configuration correct. BUT... when I pass the location to the xenguest-install script and the virt-manager I receive an error about the URL. ERROR: Invalid URL location given: [Errno 14] HTTP Error 404: Date: Sun, 29 Oct 2006 07:35:11 GMT Server: Apache/2.2.2 (Win32) PHP/5.2.0-dev mod_ssl/2.2.2 OpenSSL/0.9.8b mod_jk/1.2.15 mod_perl/2.0.3-dev Perl/v5.8.8 Vary: Accept-Encoding Content-Length: 232 Content-Type: text/html; charset=iso-8859-1 What I think is weird is when I use the Fedora site it works, http://download.fedora.redhat.com/pub/fedora/linux/core/6/x86_64/os/ Any ideas?

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xenguest-install error
by Adrian Chadd 30 Oct '06

30 Oct '06

This is from FC5: Starting install... libvir: error : operation virDomainCreateLinux forbidden for read only access Traceback (most recent call last): File "/usr/sbin/xenguest-install.py", line 460, in ? main() File "/usr/sbin/xenguest-install.py", line 451, in main start_paravirt_install(name, ram, disk, mac, uuid, src, options.extra) File "/usr/sbin/xenguest-install.py", line 331, in start_paravirt_install dom = conn.createLinux(cfgxml, 0) File "/usr/lib/python2.4/site-packages/libvirt.py", line 249, in createLinux if ret is None:raise libvirtError('virDomainCreateLinux() failed') Changing to call to openReadOnly() to open() (as per an August post to fedora-devel suggests) gives this: Traceback (most recent call last): File "/usr/sbin/xenguest-install.py", line 460, in ? main() File "/usr/sbin/xenguest-install.py", line 451, in main start_paravirt_install(name, ram, disk, mac, uuid, src, options.extra) File "/usr/sbin/xenguest-install.py", line 324, in start_paravirt_install conn = libvirt.open(None) File "/usr/lib/python2.4/site-packages/libvirt.py", line 39, in open if ret is None:raise libvirtError('virConnectOpen() failed') libvirt.libvirtError: virConnectOpen() failed Has anyone successfully used xenguest-install.py under FC5 recently? Adrian

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Problems with pciback.hide
by Patrick Heckeler 29 Oct '06

29 Oct '06

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi folks, I installed sucessfully 2 virtual machines on a fedora core 6 system. When I try to use the grub command "pciback.hide", I retrieve an error message while booting my dom0... I read an article which says, that it might be possible, that the pciback.hide feature is not activated in the kernel... Does anybody know how to activate this feature? Thanks a lot... - -- Viele Grüße Patrick Heckeler Teckstr. 6 72074 Tübingen Germany Mobil: +49172 / 719 23 24 Homezone: +497071 / 28 47 33 email: heckeler [at] web [dot] de skype: p_heckeler ICQ: 200910972 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFQMsU23tKQtXqwP4RAoeLAJ9qWfnyZkQFhRGhnpAZ8IKcWp4gkwCeNpJK gFZ4hwa4rCAXDI2dsY1Sing= =pD/L -----END PGP SIGNATURE-----

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xen October 2006