August 2006 - xen - Fedora Mailing-Lists

Looking for bug # : listen() sometimes no longer listening..

by Russell McOrmond

Before I add a possibly duplicate bug report, I wanted to find out if this is familiar to anyone. I searched for it, in bugzilla. In a XenU I've noticed that programs listening on a socket sometimes go into a state where they no longer accept connections. Restarting the server fixes the problem. I didn't notice the problem back in kernel-xenU-2.6.17-1.2145_FC5 , but have seen it with more recent kernels. If anyone has a bug number handy, that would be helpful -- otherwise I'll try to file this. -- Russell McOrmond, Internet Consultant: <http://www.flora.ca/> Please help us tell the Canadian Parliament to protect our property rights as owners of Information Technology. Sign the petition! http://www.digital-copyright.ca/petition/ict/ "The government, lobbied by legacy copyright holders and hardware manufacturers, can pry my camcorder, computer, home theatre, or portable media player from my cold dead hands!"

16 years, 9 months

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A networking problem!!

by lorena＠xtech.com.ar

Hi all!! I have a rhel 4.1 and xen redhat rpm installed and a domU with FC4, my problem is that i can't get that my real machine (rhel 4.1) and the virtual machine (FC4) communicate between! I did a ping rm-vm and vm-rm but without response :( **rm=real machine I know that when xen start it create a: xen-br0, peth0, eth0 and vifx.y but i don't understand what kind of interface(device) i put in the /etc/sysconfig/networkig-scripts/ifcfg-eth0 of my real machine? and in my vm? Regards, Lorena G

16 years, 9 months

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Netbsd-Install as DomU: partial success / Question

by Roger Grosswiler

Hey, i still try to get netbsd running as domU under fc5. I got now a install-kernel, that boots somehow, until i get a error-message, saying that there is a kernel symbols error. as i already get the bootmessage from netbsd, i think it could also do something with the root-device. my idea is to set root = "/dev/wd0" (i dunno, if this could be a root-device for netbsd, but it is an example) could this be worth trying? Thanks for feedback. Roger p.s. this is also posted on a netbsd-mailing list p.s.p.s: did somebody succeed installing any other bsd-style-unix under xen with FC5 as dom0? manuals online? Thanks for p.s.p.s :-)

16 years, 9 months

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Current FC5 kernel-xen rpm broken?

by master＠bradleyland.com

I've just migrated a system from FC4/Xen 3.0 (old) to FC5 with xen 3.0.2. The OS update went without issue. Unfortunately, neither the kernel-xen or kernel-xen0 packages work for me; they fail in two different ways: 1. kernel-xen appears to be built as PAE (not that it matters I suppose), and does not bring up any vethx/vif interfaces. When attempting to run the "network-bridge" script manually, it errors out saying "veth0 doesn't exist", etc. I haven't figured out the magic required for this to work. 2. kernel-xen0 does start up the virtual interfaces successfully. Unfortunately, the dom0 machine crashes with a stack dump when using most any networking. I can make it fail just be connecting to the samba server on the box and clicking on few directories. Otherwise, if I ssh into the machine it takes a bit longer, but still crashes. If I work from the console, it stays up indefinitely (10 hours or more). I'd appreciate some guidance on using xen with FC5. I had hoped the released packages would be stable and usable. The machine (when running FC4) was as stable as a rock (up for 205 days) before I started the migration process, so I don't think I have a hardware problem. The only change I made on the box was to enable "PnP OS?" and turn on ACPI. These settings had been disabled when it was running FC4. Is my best bet to compile from source and forget about the rpms? The FC5 kernel is 2.6.17. I need to grow a raid 5 device and it's my understanding I need .17 in order for this to be supported. The machine only has 1Gb of ram so I don't need PAE in any case.

16 years, 9 months

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Re: [Fedora-xen] Current FC5 kernel-xen rpm broken?

by master＠bradleyland.com

Thanks for the assistance Chris -- I think I've tracked this issue down to bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=202182 Kernel version is kernel-2.6.17-1.2174_FC5xen (or xen0) xen version is xen-3.0.2-3.FC5 I'll try building netloop, netbk and blkbk statically into the kernel, rather than as modules and see if that fixes it. As it sits, it doesn't appear the current kernel/xen rpms work together. I get both the "no veth0" error or the kernel panic, depending on whether its the PAE kernel or not. Does this sound like the same issue to you?

16 years, 9 months

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vlan in a domU

by Jason Tower

is it possible to do 802.1q vlan tagging in a domU? i have it working fine in the dom0: # vconfig add eth0 560 (creates eth0.560 interface) # ifconfig eth0.560 10.10.10.140/24 (a subnet on vlan 560) # ping 10.10.10.100 (success) but have been unsuccessful assigning 10.10.10.141 to a domU and getting it to communicate with vlan 560. i've tried a wide variety of combinations of bridges, vconfigs, and xen domU vif settings, so far nothing has worked. is it even possible to do what i'm trying to do? or am i simply missing the secret sauce? jason

16 years, 10 months

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netbsd [SOLVED]

by Roger Grosswiler

ok, logs are saying: ERROR: Actually saw: 'GUEST_OS=netbsd,GUEST_VER=2.0,XEN_VER=2.0,LOADER=generic,BSD_SYMTAB' so, it seems no bsd easily installed for xen 3.0. Thx, Roger

16 years, 10 months

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Error 22 while installing NetBSD-DomU

by Roger Grosswiler

Hey, I found a nice manual for the installation for NetBSD. http://wiki.xensource.com/xenwiki/NetBSDdomU I downloaded the Kernel, gunziped etc. as mentionned.starting then, i got this error: Error: (22, 'Invalid argument') My config-file looks like this: [root@neo xen]# more ork kernel = "/root/netbsd-INSTALL_XENU" memory = 256 name = "ork" disk = [ 'file:/root/ork,xvda,w' ] ip = "10.0.0.6" netmask = "255.0.0.0" gateway = "10.0.0.3" Any idea, why this happens, and what it is? selinux is disabled. Thanks for your help. Roger

16 years, 10 months

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fc5 kernel-xen0 w/ pae

by Jason Tower

is there an "official" xen0 kernel for fc5 that includes pae support? i have a 32bit system w/ 6gb ram that works fine with kernel-xen0-2.6.17-1.2174_FC5 (from yum) although it only sees 4gb. i installed kernel-xen-2.6.17-1.2174_FC5 which says it was built with pae, it sees the full 6gb but fails to bring up the bridge devices when xend starts. if anyone can point me in the right direction i'd appreciate it.

16 years, 10 months

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Install DomU from CD

by Roger Grosswiler

Hello, If i like to install a FreeBSD DomU, how can i install it from cd-rom? I mean, how can i tell xen to use the cd-rom as install-media for this domu? Does there exist any doc? Thanks, Roger

16 years, 10 months

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xen August 2006