similar to: how to optimize CentOS XEN dom0?

Hi, I have a problematic CentOS XEN server and hope someone could point me in the right direction to optimize it a bit. The server runs on a Core2Quad 9300, with 8GB RAM (max motherboard can take, 1U chassis) on an Intel motherboard with a 1TB SATA HDD. dom0 is set to 512MB limit with a few small XEM VM's running: root at zaxen01:[~]$ xm list Name ID

Hi, I''ve not tried pv_ops for a long time but just got a new system (Supermicro X9DRL-iF) so decided to try 3.5.0 with the latest Xen 4.2-unstable, unfortunately the system crashes immediately after loading dom0: traps.c:486:d0 Unhandled invalid opcode fault/trap [#6] on VCPU 0 [ec=0000] I''ve tried loading both bzImage and vmlinuz (gzip compressed vmlinuz) with the same

When booting a recently compiled Xen 4.2 on Ubuntu 12.04, dom0 crashes. I''ve included a serial console log below. I''ve used: Xen 4.2 unstable rev. 25483, compiled on the same machine. I had to apply the AT_EMPTY_PATH patch from http://lists.gnu.org/archive/html/qemu-devel/2012-02/msg03460.html to get it to compile. Linux 3.2.0-25, which is the default kernel in Ubuntu''s

Hi, I did a git pull on pv_ops tree this morning and now get a crash when eth0 is started, here is the full boot log: Booting ''Xen 3.4 / Linux 2.6.29-rc6-tip'' root (hd0,0) Filesystem type is ext2fs, partition type 0x83 kernel /xen.gz com1=115200,8n1 console=com1,vga iommu=1 [Multiboot-elf, <0x100000:0x131748:0x8e8b8>, shtab=0x2c0078, entry=0x100000] module

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi list, I have an IBM xseries 345, running CentOS 5.3, hosting a few Xen domUs. However, I need more RAM -- but cannot remember if all (four) RAM sockets are populated (which would mean to buy higher capacity modules) or if there are two slots left to use. However, I'd like (and think that it's possible, but don't remember how) to

Hi all I keep on getting this error when I try and install a Xen guest on a CentOS 5.1 x64 server with Xen installed from the repositories: [root at gimbli ~]# virt-install sdl=0 vnc=0 nographic=0 -v --location=http://intranet/kickstart/cPanel/centos/5.1/32/os/i386/ --ram=256 --file-size=10 --file=/home/vm/vps07.img --name=vps07 libvir: error : configuration file syntax error: expecting an

Hey, It looks like one of the patches that went in Xen 4.1 blows up. This used to work over the weekend, so I can only surmise it is one the three patches. This is with a debug=y build (which has been working nicely for the last month or more). It looks like one of the patches that went in Xen 4.1 blows up. This used to work a day ago - that is c/s 23551 worked nicely. ----- Forwarded message

Hi, I'm geting this message from virt-manager. Server: SuperMicro X8SIL with INTEL X3440 Here is my logs /var/log/dmesg: Bootdata ok (command line is ro root=/dev/md2) Linux version 2.6.18-194.3.1.el5xen (mockbuild at builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Thu May 13 13:49:53 EDT 2010 BIOS-provided physical RAM map: Xen: 0000000000000000 -

Hi Everyone I have sorted out the initial issues I''ve had and decided to give Xen another go. I''m trying to run Xen using kernel 2.6.37-rc3 (previous attempt with rc1 failed, and when I gave it a second go, rc3 was already out). As previously, 2.6.37-rc3 boots fine natively. 2.6.32 boots natively and under Xen as dom0, but I have reservations against running 2.6.32,

Hi Everyone I have sorted out the initial issues I''ve had and decided to give Xen another go. I''m trying to run Xen using kernel 2.6.37-rc3 (previous attempt with rc1 failed, and when I gave it a second go, rc3 was already out). As previously, 2.6.37-rc3 boots fine natively. 2.6.32 boots natively and under Xen as dom0, but I have reservations against running 2.6.32,

Hey I wanted to try my hand at doing some GPU passthrough so on my ASUS M5A97 which in the pass worked with an older BIOS (but said BIOS had issues after S3 suspend) - but with a BIOS the PCI passthrough does not work. That is due to:: (XEN) IVHD Error: Invalid IO-APIC 0xff (XEN) AMD-Vi: Error initialization

Hi all, Can anyone pleas tell me what would be best practice to use shared storage with virtual machines, especially when it involved high availability / automated failover between 2 XEN servers? i.e. if I setup 2x identical XEN servers, each with say 16GB RAM, 4x 1GB NIC''s, etc. Then I need the xen domU''s to auto failover between the 2 servers if either goes down (hardware

Hi Folks: I run into a problem when enabling Xen in next generation server platforms with Xen c/s is 21380. Xen reported "CPU Not responding" when booting up 32 CPUs( 2 sockets with 8 cores/16threads total). The log files belonging showed something wrong with APCI. So I added x2apic=0 in the xen grub line, but the symptom remained. However, Native RHEL5.5 can

Hi all I've been thinking about using CentOS on a Dell R200 server and turn it into a firewall / network monitor / traffic shaper in our datacentre, instead of using a dedicated firewall device. One of the devices that I have been looking at, with my limited budget, is the D-Link DFL 860 - http://www.netdefend.eu/Product.aspx?m=15&ref=DFL-860 It provides AV, SPI, VPN, DOS, P2P, etc

Hi all, I have a very strange situation, which I can''t explain. On a Core 2Quad server with 8GB RAM, we have 10 xen domU''s, as follows: vps.animalsaregreat.info login: root@zaxen01:[~]$ xm list Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 512 4 r----- 232.2 actionco.vm

Hellow all, i need help to fix this bug: ACPI BIOS Bug: Error: A valid RSDP was not found (20120711/tbxfroot-219) Because of this first errors i get this after, and it causes don''t work USB ports and some PCI cards on the system: can''t find IRQ for PCI INT A; please try using pci=biosirq Kernel: 3.6.1-xen self compiled (work perfect without xen multiboot) Xen Version: 4.2

If you use any NAS (or a SAN) devices, what do you use? And I''m referring more to larger scale network storage than your home PC or home theater system. We''ve had very good experiences with our NetGear ReadyNAS devices but I''m in the market for something new. The NetGear''s aren''t the cheapest ones around but they do what it says on the box. My only

If you use any NAS (or a SAN) devices, what do you use? And I''m referring more to larger scale network storage than your home PC or home theater system. We''ve had very good experiences with our NetGear ReadyNAS devices but I''m in the market for something new. The NetGear''s aren''t the cheapest ones around but they do what it says on the box. My only

Hi, We have a server which locks up about once a week (for the past 3 weeks now), without any warning, and the only way to recover it, is to reset the server. This causes unwanted downtime, and often software loss as well. How do I debug the server, which runs CentOS 5.2 to see why it locks up? The CPU is an Intel Q9300 Core 2 Quad, with 8 GB RAM, on an Intel Motherboard The last few entries

?Not sure if this actually made it to the list the first time.? Here is the SERIAL output (bottom of message after your questions).? Googling the error indicates it's something people ran into a few years back but was supposedly fixed.? Any ideas? I can verify that if I REMOVE the second CPU, it boots into Xen kernel no problem.? The CPU itself doesn't matter, as I can swap either