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1608 discussions

Mitel only supported VMware virtualization platform for some CentOS servers based products
by Jean-Marc Liger 16 Jul '18

16 Jul '18

Hi, Some Mitel products, which are CentOS 6.x or 7.x servers based with some telephony services added, are only supported on VMware virtualisation platform, even all if theses CentOS guests are certified on last CentOS/Redhat Virtualization or Microsoft Hyper V platforms. So, at he moment we have three bad choises : - Migrate part of our virtualization services from KVM/libvirt to VMware ; - Install Mitel concerned product on a physical server ; - Stay on KVM/libvirt and lose Mitel support for this product. I'm seeking for technical/legal arguments which could help us to stay on KVM/libvirt without losing Mitel support. Regards, -- *Jean-Marc LIGER Ingénieur Systèmes et Réseaux de Communication * FACULTÉ DE MÉDECINE Direction Technique, Informatique, Réseaux et Multimédia 15 rue de l’École de Médecine – 75270 Paris cedex 06 Tél : +33 (0)1 76 53 00 71

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AWS c5d.9/18xlarge instances not supported
by Jens-Uwe Schluessler 14 Jul '18

14 Jul '18

Hi, why are larger AWS instances c5d.9xlarge and c5d.18xlarge (NVMe SSD attached) NOT supported by Centos7 AMI, while smaller instances (e.g. c5d.4xlarge) are supported? Also regular c5.9/18xlarge are supported. Thanks, Jens-Uwe Jens-Uwe Schlüßler

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Remove my userid from the listing
by Robert Crook 13 Jul '18

13 Jul '18

Good Day...Please remove my userid from the CentOS help group listing.I am not qualified to answer questions, as I've not used CentOS for several years.Thank you very muchRobert G Crook

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VFIO console
by admin＠siegel-tech.net 11 Jul '18

11 Jul '18

Hello For the past three years I have my computer been set with with multiple virtual machine assigned to a GPU using QEMU/KVM and VFIO. For the past year CentOS as been the host computer, it has been reliable. This summer I switch to the Centos Enterprise package, it been work for several weeks until Friday, sometime over the weekend the console portion of the boot process does not display. I have one Windows 10 virtual machine book, but the EFI boot screen does not display and the Windows circle do not dance on the screen. I am unable able to boot my other virtual machines, they get stuck the monitor just flash on and off. I performed a major upgrade on the 4th of July it work through Friday. I have used the history command in yum to undo the update the problem persisted. I have qemu-kvm-ev-2.10.0-21.el7_5.4.1.x86_64 and libvirt-3.9.0-14.el7_5.6.x86_64. I can post a configuration if you think it will help, I have regenerated a xml file from partially working Windows 10 machine. What has changed in the last week. I have tried many things but not sure were to go from here. Thank you Aaron

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CVE-2018-3639 qemu-kvm-ev-2.10.0-21.el7_5.4.1 is now available for testing
by Sandro Bonazzola 28 Jun '18

28 Jun '18

Hi, qemu-kvm-ev-2.10.0-21.el7_5.4.1 has been tagged for testing. If nothing shows up, I'll tag it for release on Monday July 2nd. Here's the changelog: * Thu Jun 28 2018 Sandro Bonazzola <sbonazzo(a)redhat.com> - ev-2.10.0-21.el7_5.4.1 - Removing RH branding from package name * Sat Jun 09 2018 Miroslav Rezanina <mrezanin(a)redhat.com> - rhev-2.10.0-21.el7_5.4 - kvm-scsi-disk-allow-customizing-the-SCSI-version.patch [bz#1571370] - kvm-hw-scsi-support-SCSI-2-passthrough-without-PI.patch [bz#1571370] - kvm-i386-Define-the-Virt-SSBD-MSR-and-handling-of-it-CVE.patch [bz#1584370] - kvm-i386-define-the-AMD-virt-ssbd-CPUID-feature-bit-CVE-.patch [bz#1584370] - kvm-cpus-Fix-event-order-on-resume-of-stopped-guest.patch [bz#1582122] - kvm-spec-Enable-Native-Ceph-support-on-all-architectures.patch [bz#1588001] - Resolves: bz#1571370 (Pegas1.1 Alpha: SCSI pass-thru of aacraid RAID1 is inaccessible (qemu-kvm-rhev) [rhel-7.5.z]) - Resolves: bz#1582122 (IOERROR pause code lost after resuming a VM while I/O error is still present [rhel-7.5.z]) - Resolves: bz#1584370 (CVE-2018-3639 qemu-kvm-rhev: hw: cpu: AMD: speculative store bypass [rhel-7.5.z]) - Resolves: bz#1588001 (Enable Native Ceph support on non x86_64 CPUs [rhel-7.5.z]) For testing: $ sudo yum install centos-release-qemu-ev $ sudo yum-config-manager --enable centos-qemu-ev-test $ sudo yum update "qemu-kvm-ev*" and use it as usual. Thanks, -- SANDRO BONAZZOLA MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://red.ht/sig>

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Installing support for q35 chipset
by admin＠siegel-tech.net 25 Jun '18

25 Jun '18

Hello I have recently had to reinstall Centos 7.5 to on host computer. I have not be able to set-up qemu to support the q35 chip set. I have several virtual machines that require q35. This is not my first install, I have configured libvirt on many machines in the past, it just worked, it has not required any manual configuration. [root@sj aadmin]# /usr/libexec/qemu-kvm -machine help Supported machines are: none empty machine pc RHEL 7.0.0 PC (i440FX + PIIX, 1996) (alias of pc-i440fx-rhel7.0.0) pc-i440fx-rhel7.0.0 RHEL 7.0.0 PC (i440FX + PIIX, 1996) (default) rhel6.6.0 RHEL 6.6.0 PC rhel6.5.0 RHEL 6.5.0 PC rhel6.4.0 RHEL 6.4.0 PC rhel6.3.0 RHEL 6.3.0 PC rhel6.2.0 RHEL 6.2.0 PC rhel6.1.0 RHEL 6.1.0 PC rhel6.0.0 RHEL 6.0.0 PC I have add the jenkins repository. and installed the following packages, OVMF.noarch 20171011-4.git92d07e48907f.el7 @base edk2.git.x86_64 0-20180612.181.g2aedaaef8a @qemu-firmware-jenkins edk2.git-aarch64.noarch 0-20180612.181.g2aedaaef8a @qemu-firmware-jenkins edk2.git-arm.noarch 0-20180612.181.g2aedaaef8a @qemu-firmware-jenkins edk2.git-ovmf-x64.noarch 0-20180612.181.g2aedaaef8a @qemu-firmware-jenkins edk2.git-tools.x86_64 0-20180612.181.g2aedaaef8a @qemu-firmware-jenkins coreboot.git.x86_64 4.8-599.333.g1bf411c743 @qemu-firmware-jenkins coreboot.git-tools.x86_64 4.8-599.333.g1bf411c743 @qemu-firmware-jenkins qemu-common.x86_64 2:2.0.0-1.el7.6 @epel qemu-guest-agent.x86_64 10:2.8.0-2.el7 @anaconda qemu-img.x86_64 10:1.5.3-156.el7_5.2 @updates qemu-kvm.x86_64 10:1.5.3-156.el7_5.2 @updates qemu-kvm-common.x86_64 10:1.5.3-156.el7_5.2 @updates qemu-kvm-tools.x86_64 10:1.5.3-156.el7_5.2 @updates qemu-system-alpha.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-arm.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-cris.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-lm32.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-m68k.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-microblaze.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-mips.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-moxie.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-or32.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-s390x.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-sh4.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-unicore32.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-x86.x86_64 2:2.0.0-1.el7.6 @epel qemu-system-xtensa.x86_64 2:2.0.0-1.el7.6 @epel qemu-user.x86_64 2:2.0.0-1.el7.6 @epel seabios.git.x86_64 1.11.0-40.27.gd9a8b86 @qemu-firmware-jenkins I have installed the Virtualization Host group. Configured the nvram in the /etc/libvirt/qemu.conf, I even used the same copy from a previous installation. nvram = [ "/usr/share/OVMF/OVMF_CODE.secboot.fd:/usr/share/OVMF/OVMF_VARS.fd", "/usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd:/usr/share/edk2.git/ovmf-x64/OVMF_VARS-pure-efi.fd" ] Thank you Aaron

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Re: [CentOS-virt] Q: how can I request to add an upstream patch to resolve a core dump issue?
by Xiong, Huan 25 Jun '18

25 Jun '18

UPDATE: It turned out QEMU still dumped core with that patch applied. That said, I'm still interested to know how to report issues with QEMU from centos-virt repo. Thanks, Ray > -----Original Message----- > From: Xiong, Huan > Sent: 2018年6月22日 11:12 > To: 'centos-virt(a)centos.org' <centos-virt(a)centos.org> > Subject: Q: how can I request to add an upstream patch to resolve a core > dump issue? > > Hi, > > The latest version of QEMU (qemu-kvm-ev-2.10.0-21.el7_5.3.1) from centos- > virt repo doesn't have this patch: > > commit 68a9398261ca38979bbc2b7c89ed5bb044ccc9e6 > Author: linzhecheng <linzhecheng(a)huawei.com> > Date: Tue Nov 28 12:46:56 2017 +0800 > > qemu-thread: fix races on threads that exit very quickly > > I wonder how I can request to add it? I hit a core dump issue repeatedly, > which I believe is fixed by this patch. While I observed it on an aarch64 > machine, I think the issue is common on all arch types. > > I'd like to submit a bug report, but didn't find a category for centos-virt at > https://Bugzilla.redhat.com (I suppose I should file bug against upstream, > right?). The Virt-SIG wiki page seems to be outdated and doesn't contain > information on this. Any suggestions? > > Thanks, > Ray

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Re: [CentOS-virt] Virt SIG meetings
by Sandro Bonazzola 25 Jun '18

25 Jun '18

2018-06-25 4:40 GMT+02:00 George Dunlap <George.Dunlap(a)citrix.com>: > > On Jun 20, 2018, at 9:28 PM, Sandro Bonazzola <sbonazzo(a)redhat.com> > wrote: > > > > Hi, > > is it me showing up at the wrong time or meetings didn't happen in the > past 2 rounds? > > I see one scheduled for next week, June 26th, 15:00 UTC. Will it happen? > > I’m in China, at a conference at the moment, so I may not be able to > attend. But Anthony should be around to share stuff from the Xen side. > Would you (Sandro) be willing to chair the session? > Yes, i can chair it > > The one two weeks ago, I think I just got caught up in something and > forgot; sorry. If you remember please feel free to ping me on IRC if I > haven’t brought it up. :-) > Ok :-) > > -George > > -- SANDRO BONAZZOLA ASSOCIATE MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://red.ht/sig>

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Q: how can I request to add an upstream patch to resolve a core dump issue?
by Xiong, Huan 22 Jun '18

22 Jun '18

Hi, The latest version of QEMU (qemu-kvm-ev-2.10.0-21.el7_5.3.1) from centos-virt repo doesn't have this patch: commit 68a9398261ca38979bbc2b7c89ed5bb044ccc9e6 Author: linzhecheng <linzhecheng(a)huawei.com> Date: Tue Nov 28 12:46:56 2017 +0800 qemu-thread: fix races on threads that exit very quickly I wonder how I can request to add it? I hit a core dump issue repeatedly, which I believe is fixed by this patch. While I observed it on an aarch64 machine, I think the issue is common on all arch types. I'd like to submit a bug report, but didn't find a category for centos-virt at https://Bugzilla.redhat.com (I suppose I should file bug against upstream, right?). The Virt-SIG wiki page seems to be outdated and doesn't contain information on this. Any suggestions? Thanks, Ray

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Virt SIG meetings
by Sandro Bonazzola 20 Jun '18

20 Jun '18

Hi, is it me showing up at the wrong time or meetings didn't happen in the past 2 rounds? I see one scheduled for next week, June 26th, 15:00 UTC. Will it happen? Thanks, -- SANDRO BONAZZOLA ASSOCIATE MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://red.ht/sig>

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