similar to: NUMA placement failed, performance might be affected

Solved. For the archives: Noticed in xl info output that only 1 core was recognised, even though nr_cpus should show 16 on this box. Tried rebooting and selecting the old .34 kernel, console printed "smpboot: do_boot_cpu failed(-1) to wakeup CPU#1" and CentOS failed to boot. Powered down the box fully and started back up with the latest .44 kernel and everything is working fine

Hello Dovecot list, We've been running a really old CentOS 5 server with the stock dovecot from yum (1.0.7) for years and years with absolutely no problems. If it ain't broke, don't fix it, or something like that. Well it finally broke, but only due to the server no longer being able to handle the load of the increasing user base (many thousands now, with hundreds of concurrent

I have migrated KVM VMs from a CentOS 6 to a CentOS 7 host. All work fine post-migration, CentOS 3 (don't ask ...), CentOS 6, CentOS 7, Windows. But the CentOS 5 VMs failed. At some point during the boot process, they became unpingable and also inaccessible. I have correlated this to the start of the irqbalance service and was wondering if it is generally considered best practice to turn it

I heard talk of a centos-supported xen dom0 for CentOS 6.4, but I haven't heard talk of such a thing lately, and I haven't seen where to download it, which could just be me being stupid.

Hi every body I am a new centos user. I installed centos 6 on my laptop and add some software to it. How can I create a full image (boot able) back up of it. ( some thing like windows full image backup). please help! -- With The Best H.Lanjanian -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, In general, PV tends not to be supported in newer distribution releases. This is mostly due to HVM performance and flexibility nowadays, which just was not the case back in the days when PV ruled. I am curious why you are trying PV. -yoctozepto On Sat, Sep 19, 2020 at 6:41 PM 9f9dcad3f78905b03201--- via CentOS-virt <centos-virt at centos.org> wrote: > > All, > > Just

Hello all, I was recently trying out NUMA placement for my guests on both x86_64 and ppc64 machines. When booting a guest on the x86_64 machine, the following specs were valid (obviously, just notable excepts from the xml): <memory unit='KiB'>8388608</memory> <currentMemory unit='KiB'>8388608</currentMemory> <vcpu

Hi, We use a git submodule for gnu-efi. What would be the downside of changing git clone git://repo.or.cz/syslinux.git into git clone --recursive git://repo.or.cz/syslinux.git on the Syslinux wik? Cheers Geert Stappers $ git clone git://repo.or.cz/syslinux.git Cloning into 'syslinux'... remote: Counting objects: 50546, done. remote: Total 50546 (delta 0), reused 0 (delta 0)

Hello Asterisk Users, Hope you all doing fine! I am working with a quite complex dialplan, and I've come to some situations where it makes some nasty use of pre-bridge handlers. The pre-bridge handlers wiki (https://wiki.asterisk.org/ wiki/display/AST/Pre-Bridge+Handlers) doesn't have the big warning the pre-dial one has indicating it must return and must not put the caller/callee in

About rationale, usage and (some small bits of) API. Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> --- Changes from v7: * avoid referring to 4.2 release as "upcoming". * libxl placement disabling key explicitly mentioned. * Limit of max 16 NUMA nodes explicitly mentioned. Changes from v6: * text updated to

Greetings - I will be getting a new server for my company in the next few months and am trying to get a better understanding of some of the basic theoretical approaches to using Centos KVM on a server. I have found plenty of things to read that discuss how to install KVM on the host and how to install a guest and setup the network bridge, and all the other rudimentary tasks. But all of

Hello, Third version of the NUMA placement series Xen 4.2. All the comments received during v2''s review have been addressed (more details in single changelogs). The most notable changes are the following: - the libxl_cpumap --> libxl_bitmap renaming has been rebased on top of the recent patches that allows us to allocate bitmaps of different sizes; - the heuristics for deciding

Dear List, I've compiled asterisk (both 0.9.0 and the CVS-04/19/04 source trees). I'm using the oh323 channel driver version 0.5.10, OpenH323 v1.12.2, PWlib v1.5.2 When run on a RedHat 9 system, I am constantly getting seg faults. This happens even when I tried removing the oh323 channel driver, so it appears to be something with asterisk. I get crashes either when attempting to

I want to give my clients access to their Xen domU consoles using VNC. This works great using vfb device configured as type=vnc. However I have 2 problems: * I can't figure out how I can add a vfb device to a running domain without restarting it (I have 100+ domU's I want to enable this on, and want to avoid restarting them all if possible) * Related, I can't figure out how I can

On 05/03/2016 12:27 AM, Geert Stappers via Syslinux wrote: > On Mon, May 02, 2016 at 11:21:13PM -0400, John Lewis via Syslinux wrote: >> I was trying to follow this tutorial >> https://help.ubuntu.com/community/LiveCDCustomizationFromScratch. i got >> confused with the part about Create an isolinux.cfg file. >> >> The show stopper for me was the mkisofs because the

Package: xen-utils-4.3 Version: 4.3.0-3 Severity: normal II'm install xen-4.3 from official repository. When i try create virtulal machine got error: xl -vvvv create /etc/xen/xlexample.hvm Parsing config from /etc/xen/xlexample.hvm libxl: debug: libxl_create.c:1230:do_domain_create: ao 0x19811c0: create: how=(nil) callback=(nil) poller=0x1981220 libxl: verbose:

I'm running CentOS 6 x86_64 domU on CentOS 5 x86_64 dom0 The host is running 2.6.18-238.19.1.el5xen The guest is 2.6.32-220.2.1.el6.x86_64 'xm list' on the host shows 512mb memory allocated. 'free -m' in the guest shows 224mb memory. 'xm mem-set 21 1024' (21 being the domU ID), 'xm list' now shows 1024mb, but in the guest I now see 736mb. Anyone else seeing

Wondering if anyone has managed to get Xen to boot from UEFI? We have a relatively new server with a Supermicro X11SSH-F mainboard with an M.2 SSD. If we switch the boot mode to Legacy in the BIOS no boot devices show up. The vendor says this is because M.2 SSD is only supported in UEFI mode. We even tried installing some spinning SATA drives and a USB thumb drive but those don't show up as

I may have run into this issue before too, but in my case the VMs ran fine with only 1 vcpu so I booted them that way and left them like that. It was just a few small legacy VMs and I didn't spend any more time on it. Did you try booting with only 1 vcpu? Chris -- Chris?Wik Anu?Internet?Services www.anu.net?|?www.cwik.ch From: isdtor <isdtor at gmail.com> To:

Hi, this patch introduces a new config file option (numanodes=[x]) to specify a list of valid NUMA nodes for guests. This will extend (but not replace) the recently introduced automatic placement. If several nodes are given, the current algorithm will choose one of them. If none of the given nodes has enough memory, this will fall back to the automatic placement. Signed-off-by: Andre