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1612 discussions

qemu-kvm-ev-2.9.0-16.el7_4.14.1 has been released
by Sandro Bonazzola 09 Mar '18

09 Mar '18

Hi, qemu-kvm-ev-2.9.0-16.el7_4.14.1 <http://cbs.centos.org/koji/buildinfo?buildID=22232> has been tagged for release and should land on mirrors.centos.org on Monday, March 12th 2018. Here's the ChangeLog: * Thu Mar 08 2018 Sandro Bonazzola <sbonazzo(a)redhat.com> - ev-2.9.0-16.el7_4.14.1 - Removing RH branding from package name * Thu Jan 18 2018 Miroslav Rezanina <mrezanin(a)redhat.com> - rhev-2.9.0-16.el7_4.14 - kvm-fw_cfg-fix-memory-corruption-when-all-fw_cfg-slots-a.patch [bz#1534649] - kvm-mirror-Fix-inconsistent-backing-AioContext-for-after.patch [bz#1535125] - Resolves: bz#1534649 (Qemu crashes when all fw_cfg slots are used [rhel-7.4.z]) - Resolves: bz#1535125 (Mirror jobs for drives with iothreads make QEMU to abort with "block.c:1895: bdrv_attach_child: Assertion `bdrv_get_aio_context(parent_bs) == bdrv_get_aio_context(child_bs)' failed." [rhel-7.4.z]) Regards, -- SANDRO BONAZZOLA ASSOCIATE MANAGER, SOFTWARE ENGINEERING, EMEA ENG VIRTUALIZATION R&D Red Hat EMEA <https://www.redhat.com/> <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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kernel 4.9.86-30 missing mpt2sas module
by T.Weyergraf 07 Mar '18

07 Mar '18

Hi I am attempting to setup Xen 4.10 with kernel 4.9.86-30 ( virt7-xen-410-testing, virt7-common-testing ) on CentOS7 After installing everything, the machine was unable to boot and hung in dracut stating it could not find its root device. The testsystem I use is a somewhat aged Dell M915 Blade (Quad opteron 61xx), using an MPT SAS controller for it's SAS boot drives. Stock CentOS 7 reports mpt2sas module being used to access the controller. That module is not present in the modules directory of the 4.9.86: 4.9.86-30: # pwd /lib/modules/4.9.86-30.el7.x86_64 # find . -name "*mpt2*" -print # stock 3.10.0-693: # pwd /lib/modules/3.10.0-693.el7.x86_64 # find . -name "*mpt2*" -print ./kernel/drivers/scsi/mpt3sas/mpt2sas.ko.xz The fun part is, that according to the shipped config, it should be there: # grep MPT2 /boot/config-4.9.86-30.el7.x86_64 CONFIG_SCSI_MPT2SAS_MAX_SGE=128 CONFIG_SCSI_MPT2SAS=m Any idea, what happened? I will try myself to build a new kernel from the corresponding source package to check, what went wrong. As a side note: anyone here, who tried that combo? I know, it's somewhat cutting edge, but as I am finally looking into some sort of modern Xen4CentOS setup to replace our aged setup in our infrastructure, i thought i'd rather settle with something as new as possible to avoid running into "not supported anymore soon" issues. Check hypervisor support matrix on frontpage https://xenproject.org/ Regards Thomas Weyergraf

3 2

qemu-guest-agent doesnt start
by Aleksey Kashin 01 Mar '18

01 Mar '18

Hello, I need to communicate with windows 10 guest from cent os host. Following this docs - https://access.redhat.com/solutions/732773, https://wiki.libvirt.org/page/Qemu_guest_agent I add new device in my Win10 guest <channel type='unix'> <target type='virtio' name='org.qemu.guest_agent.0'/> </channel> and install gemu-ga x64 from this iso - https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-vi… After that I install gemu-guest-agent on cent os host and try to start service but with no success [root@kvm ~]# service qemu-guest-agent start Redirecting to /bin/systemctl start qemu-guest-agent.service A dependency job for qemu-guest-agent.service failed. See 'journalctl -xe' for details. [root@kvm ~]# journalctl -xe мар 01 15:41:03 kvm.office systemd[1]: Job dev-virtio\x2dports-org.qemu.guest_agent.0.device/start timed out. мар 01 15:41:03 kvm.office systemd[1]: Timed out waiting for device dev-virtio\x2dports-org.qemu.guest_agent.0.device. -- Subject: Unit dev-virtio\x2dports-org.qemu.guest_agent.0.device has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit dev-virtio\x2dports-org.qemu.guest_agent.0.device has failed. -- -- The result is timeout. мар 01 15:41:03 kvm.office systemd[1]: Dependency failed for QEMU Guest Agent. -- Subject: Unit qemu-guest-agent.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit qemu-guest-agent.service has failed. -- -- The result is dependency. мар 01 15:41:03 kvm.office systemd[1]: Job qemu-guest-agent.service/start failed with result 'dependency'. мар 01 15:41:03 kvm.office systemd[1]: Job dev-virtio\x2dports-org.qemu.guest_agent.0.device/start failed with result 'timeout'. мар 01 15:41:03 kvm.office polkitd[1376]: Unregistered Authentication Agent for unix-process:27927:138320296 (system bus name :1.885, object path /org/freedesktop/PolicyKit1/AuthenticationAg Also I tried to start qemu-ga wrapped by strace [root@kvm ~]# source /etc/sysconfig/qemu-ga [root@kvm ~]# strace /usr/bin/qemu-ga \ > --method=virtio-serial \ > --path=/dev/virtio-ports/org.qemu.guest_agent.0 \ > --blacklist=${BLACKLIST_RPC} \ > -F${FSFREEZE_HOOK_PATHNAME} <skipped> open("/dev/virtio-ports/org.qemu.guest_agent.0", O_RDWR|O_NONBLOCK|O_ASYNC|O_CLOEXEC) = -1 ENOENT (No such file or directory) write(2, "1519901353.794545: critical: err"..., 781519901353.794545: critical: error opening channel: No such file or directory ) = 78 write(2, "1519901353.794659: critical: err"..., 511519901353.794659: critical: error opening channel ) = 51 write(2, "1519901353.794742: critical: fai"..., 661519901353.794742: critical: failed to create guest agent channel ) = 66 write(2, "1519901353.794818: critical: fai"..., 701519901353.794818: critical: failed to initialize guest agent channel ) = 70 exit_group(1) = ? +++ exited with 1 +++ [root@kvm ~]# ls -l /dev/virtio-ports/* ls: cannot access /dev/virtio-ports/*: No such file or directory Anybody help me? Centos 7.2 [root@kvm ~]# cat /etc/centos-release CentOS Linux release 7.2.1511 (Core) [root@kvm ~]# uname -r 3.10.0-327.el7.x86_64 Qemu-guest-agent v2.8 [root@kvm ~]# rpm -qa | grep qemu-guest qemu-guest-agent-2.8.0-2.el7.x86_64 Other packages [root@kvm systemd]# rpm -qa | egrep -i 'qemu|kvm|libvirt' libvirt-client-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-config-nwfilter-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-disk-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-scsi-3.2.0-14.el7_4.7.x86_64 libvirt-3.2.0-14.el7_4.7.x86_64 centos-release-qemu-ev-1.0-2.el7.noarch qemu-kvm-common-ev-2.9.0-16.el7_4.13.1.x86_64 libvirt-daemon-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-lxc-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-mpath-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-iscsi-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-3.2.0-14.el7_4.7.x86_64 qemu-img-ev-2.9.0-16.el7_4.13.1.x86_64 libvirt-libs-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-nodedev-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-config-network-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-interface-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-core-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-qemu-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-gluster-3.2.0-14.el7_4.7.x86_64 ipxe-roms-qemu-20170123-1.git4e85b27.el7_4.1.noarch qemu-kvm-ev-2.9.0-16.el7_4.13.1.x86_64 libvirt-python-3.2.0-3.el7_4.1.x86_64 libvirt-daemon-driver-nwfilter-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-secret-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-network-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-logical-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-rbd-3.2.0-14.el7_4.7.x86_64 qemu-guest-agent-2.8.0-2.el7.x86_64 libvirt-glib-1.0.0-1.el7.x86_64 Thank you! -- Best regards

2 1

custom Xen on custom kernel on CentOS 7
by John Vetter 28 Feb '18

28 Feb '18

3 5

CentOS 7 / Xen 4.6 on UEFI system?
by Chris Wik 27 Feb '18

27 Feb '18

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 bootable either in legacy mode. Trying to boot Xen 4.6 from the centos-release-xen repo results in: Loading Xen 4.6.6-8.el7 error: can't find command 'multiboot'. Loading Linux 4.9.75-29.el7.x86_64 ... error: can't find command 'module'. Loading initial ramdisk ... error: can't find command 'module'. Press any key to continue ... From what I've read we need to compile xen.efi and boot it natively. I found this: https://wiki.xenproject.org/wiki/Xen_EFI#Compiling_Xen_as_EFI Which sugests binutils doesn't support PE (EFI), which looks to be the case with the stock version on CentOS 7, note missing i386pe from the list of supported emulations: # ld -V GNU ld version 2.25.1-32.base.el7_4.2 Supported emulations: elf_x86_64 elf32_x86_64 elf_i386 i386linux elf_l1om elf_k1om I downloaded binutils 2.30 from http://ftp.gnu.org/gnu/binutils/ and built it with: yum -y groupinstall "Development Tools" tar xzf binutils-2.30.tar.gz cd binutils-2.30 ./configure --enable-targets=x86_64-pep make make install Now I have a version that supports i386pe: # /usr/local/bin/ld -V GNU ld (GNU Binutils) 2.30 Supported emulations: elf_x86_64 elf32_x86_64 elf_i386 elf_iamcu i386linux elf_l1om elf_k1om i386pep i386pe However at this point I guess I need to rebuild Xen from source in order to obtain the xen.efi binary, and I'm not sure how to do that. Am I on the right path? Any tips on how to recompile Xen to get xen.efi binary? Or am I barking up the wrong tree? Thanks in advance for any advice. Chris -- Chris Wik Anu Internet Services www.cwik.ch | www.anu.net

1 0

AWS Official AMI's with ENA Support
by Brian Lancaster 26 Feb '18

26 Feb '18

Hi, So whats the deal here guys? Is CentOS not going to start flagging the AMI's for AWS with the 'EnaSupport = True' on the latest images being created? Having this flag is the only way to take advantage of the newer m5 and c5 instance family types. Seems only `ami-02e98f78` supports ENA in 'US-EAST-1' to date and all since then do not. Would like someone to explain why this hasn't happened yet. -- Brian Lancaster

1 0

Kimchi and noVNC
by Jean-Marc Liger 23 Feb '18

23 Feb '18

Hi, I've rebuild Kimchi/Wok 2.5.0 based on ClearOS packages. I've also upgraded noVNC 1.0.0. Unfortunatly the QEMUExtendedKeyEvent which fixes French keyboard's detection doesn't work for me at the moment. But maybe, the problem is located in my QEMU 2.11.0 implementation. If someone want to digg his own way ? https://copr.fedorainfracloud.org/coprs/jmliger/virt7-upstream/builds/ *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

1 0

kernel-ml-4.15.0-1.el7.elrepo.x86_64 doesn't boot as Xen PV domU
by Adi Pircalabu 02 Feb '18

02 Feb '18

Hi, has anyone managed to boot 4.15.0 as Xen PV domU? I've been loading 4.14.12 to 4.14.15 ELRepo builds no problem, but 4.15 crashes. Replicates on 2 CentOS 7.4 hypervisors running xen-4.6.6-9.el7.x86_64 on: - Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz - AMD Phenom(tm) II X6 1090T Processor xl dmesg shows: [...] (d6) HVM Loader (d6) Detected Xen v4.6.6-9.el7 (d6) Xenbus rings @0xfeffc000, event channel 1 (d6) System requested SeaBIOS (d6) CPU speed is 3607 MHz (d6) Relocating guest memory for lowmem MMIO space disabled (d6) PCI-ISA link 0 routed to IRQ5 (d6) PCI-ISA link 1 routed to IRQ10 (d6) PCI-ISA link 2 routed to IRQ11 (d6) PCI-ISA link 3 routed to IRQ5 (d6) pci dev 01:2 INTD->IRQ5 (d6) pci dev 01:3 INTA->IRQ10 (d6) pci dev 02:0 INTA->IRQ11 (d6) pci dev 04:0 INTA->IRQ5 (d6) No RAM in high memory; setting high_mem resource base to 100000000 (d6) pci dev 03:0 bar 10 size 002000000: 0f0000008 (d6) pci dev 02:0 bar 14 size 001000000: 0f2000008 (d6) pci dev 04:0 bar 30 size 000040000: 0f3000000 (d6) pci dev 03:0 bar 30 size 000010000: 0f3040000 (d6) pci dev 03:0 bar 14 size 000001000: 0f3050000 (d6) pci dev 02:0 bar 10 size 000000100: 00000c001 (d6) pci dev 04:0 bar 10 size 000000100: 00000c101 (d6) pci dev 04:0 bar 14 size 000000100: 0f3051000 (d6) pci dev 01:2 bar 20 size 000000020: 00000c201 (d6) pci dev 01:1 bar 20 size 000000010: 00000c221 (d6) Multiprocessor initialisation: (d6) - CPU0 ... 39-bit phys ... fixed MTRRs ... var MTRRs [1/8] ... done. (d6) - CPU1 ... 39-bit phys ... fixed MTRRs ... var MTRRs [1/8] ... done. (d6) Writing SMBIOS tables ... (d6) Loading SeaBIOS ... (d6) Creating MP tables ... (d6) Loading ACPI ... (d6) vm86 TSS at fc00a180 (d6) BIOS map: (d6) 10000-100e3: Scratch space (d6) c0000-fffff: Main BIOS (d6) E820 table: (d6) [00]: 00000000:00000000 - 00000000:000a0000: RAM (d6) HOLE: 00000000:000a0000 - 00000000:000c0000 (d6) [01]: 00000000:000c0000 - 00000000:00100000: RESERVED (d6) [02]: 00000000:00100000 - 00000000:bf800000: RAM (d6) HOLE: 00000000:bf800000 - 00000000:fc000000 (d6) [03]: 00000000:fc000000 - 00000001:00000000: RESERVED (d6) Invoking SeaBIOS ... (d6) SeaBIOS (version ?-20150729_130325-) (d6) (d6) Found Xen hypervisor signature at 40000000 (d6) Running on QEMU (i440fx) (d6) xen: copy e820... (d6) Relocating init from 0x000de920 to 0xbf7aec10 (size 70448) (d6) CPU Mhz=3608 (d6) Found 8 PCI devices (max PCI bus is 00) (d6) Allocated Xen hypercall page at bf7ff000 (d6) Detected Xen v4.6.6-9.el7 (d6) xen: copy BIOS tables... (d6) Copying SMBIOS entry point from 0x00010020 to 0x000f6600 (d6) Copying MPTABLE from 0xfc001160/fc001170 to 0x000f6500 (d6) Copying PIR from 0x00010040 to 0x000f6480 (d6) Copying ACPI RSDP from 0x000100c0 to 0x000f6450 (d6) Using pmtimer, ioport 0xb008 (d6) Scan for VGA option rom (d6) Running option rom at c000:0003 (d6) pmm call arg1=0 (d6) Turning on vga text mode console (d6) SeaBIOS (version ?-20150729_130325-) (d6) Machine UUID 8ebc5a48-2f57-4408-9fcb-344604913e27 (d6) UHCI init on dev 00:01.2 (io=c200) (d6) Found 0 lpt ports (d6) Found 1 serial ports (d6) ATA controller 1 at 1f0/3f4/0 (irq 14 dev 9) (d6) ATA controller 2 at 170/374/0 (irq 15 dev 9) (d6) ata0-0: QEMU HARDDISK ATA-7 Hard-Disk (40960 MiBytes) (d6) Searching bootorder for: /pci@i0cf8/*@1,1/drive@0/disk@0 (d6) DVD/CD [ata1-0: QEMU DVD-ROM ATAPI-4 DVD/CD] (d6) Searching bootorder for: /pci@i0cf8/*@1,1/drive@1/disk@0 (d6) PS2 keyboard initialized (d6) All threads complete. (d6) Scan for option roms (d6) Running option rom at c980:0003 (d6) pmm call arg1=1 (d6) pmm call arg1=0 (d6) pmm call arg1=1 (d6) pmm call arg1=0 (d6) Searching bootorder for: /pci@i0cf8/*@4 (d6) (d6) Press F12 for boot menu. (d6) (d6) Searching bootorder for: HALT (d6) drive 0x000f6400: PCHS=16383/16/63 translation=lba LCHS=1024/255/63 s=83886080 (d6) Space available for UMB: ca800-ee800, f5e20-f63a0 (d6) Returned 258048 bytes of ZoneHigh (d6) e820 map has 6 items: (d6) 0: 0000000000000000 - 000000000009fc00 = 1 RAM (d6) 1: 000000000009fc00 - 00000000000a0000 = 2 RESERVED (d6) 2: 00000000000f0000 - 0000000000100000 = 2 RESERVED (d6) 3: 0000000000100000 - 00000000bf7ff000 = 1 RAM (d6) 4: 00000000bf7ff000 - 00000000bf800000 = 2 RESERVED (d6) 5: 00000000fc000000 - 0000000100000000 = 2 RESERVED (d6) enter handle_19: (d6) NULL (d6) Booting from Hard Disk... (d6) Booting from 0000:7c00 (d7) HVM Loader (d7) Detected Xen v4.6.6-9.el7 (d7) Xenbus rings @0xfeffc000, event channel 1 (d7) System requested SeaBIOS (d7) CPU speed is 3607 MHz (d7) Relocating guest memory for lowmem MMIO space disabled (d7) PCI-ISA link 0 routed to IRQ5 (d7) PCI-ISA link 1 routed to IRQ10 (d7) PCI-ISA link 2 routed to IRQ11 (d7) PCI-ISA link 3 routed to IRQ5 (d7) pci dev 01:2 INTD->IRQ5 (d7) pci dev 01:3 INTA->IRQ10 (d7) pci dev 02:0 INTA->IRQ11 (d7) pci dev 04:0 INTA->IRQ5 (d7) No RAM in high memory; setting high_mem resource base to 100000000 (d7) pci dev 03:0 bar 10 size 002000000: 0f0000008 (d7) pci dev 02:0 bar 14 size 001000000: 0f2000008 (d7) pci dev 04:0 bar 30 size 000040000: 0f3000000 (d7) pci dev 03:0 bar 30 size 000010000: 0f3040000 (d7) pci dev 03:0 bar 14 size 000001000: 0f3050000 (d7) pci dev 02:0 bar 10 size 000000100: 00000c001 (d7) pci dev 04:0 bar 10 size 000000100: 00000c101 (d7) pci dev 04:0 bar 14 size 000000100: 0f3051000 (d7) pci dev 01:2 bar 20 size 000000020: 00000c201 (d7) pci dev 01:1 bar 20 size 000000010: 00000c221 (d7) Multiprocessor initialisation: (d7) - CPU0 ... 39-bit phys ... fixed MTRRs ... var MTRRs [1/8] ... done. (d7) - CPU1 ... 39-bit phys ... fixed MTRRs ... var MTRRs [1/8] ... done. (d7) Writing SMBIOS tables ... (d7) Loading SeaBIOS ... (d7) Creating MP tables ... (d7) Loading ACPI ... (d7) vm86 TSS at fc00a180 (d7) BIOS map: (d7) 10000-100e3: Scratch space (d7) c0000-fffff: Main BIOS (d7) E820 table: (d7) [00]: 00000000:00000000 - 00000000:000a0000: RAM (d7) HOLE: 00000000:000a0000 - 00000000:000c0000 (d7) [01]: 00000000:000c0000 - 00000000:00100000: RESERVED (d7) [02]: 00000000:00100000 - 00000000:9f800000: RAM (d7) HOLE: 00000000:9f800000 - 00000000:fc000000 (d7) [03]: 00000000:fc000000 - 00000001:00000000: RESERVED (d7) Invoking SeaBIOS ... (d7) SeaBIOS (version ?-20150729_130325-) (d7) (d7) Found Xen hypervisor signature at 40000000 (d7) Running on QEMU (i440fx) (d7) xen: copy e820... (d7) Relocating init from 0x000de920 to 0x9f7aec10 (size 70448) (d7) CPU Mhz=3607 (d7) Found 8 PCI devices (max PCI bus is 00) (d7) Allocated Xen hypercall page at 9f7ff000 (d7) Detected Xen v4.6.6-9.el7 (d7) xen: copy BIOS tables... (d7) Copying SMBIOS entry point from 0x00010020 to 0x000f6600 (d7) Copying MPTABLE from 0xfc001160/fc001170 to 0x000f6500 (d7) Copying PIR from 0x00010040 to 0x000f6480 (d7) Copying ACPI RSDP from 0x000100c0 to 0x000f6450 (d7) Using pmtimer, ioport 0xb008 (d7) Scan for VGA option rom (d7) Running option rom at c000:0003 (d7) pmm call arg1=0 (d7) Turning on vga text mode console (d7) SeaBIOS (version ?-20150729_130325-) (d7) Machine UUID a83aa702-f987-40f0-842e-469ae25100e9 (d7) UHCI init on dev 00:01.2 (io=c200) (d7) Found 0 lpt ports (d7) Found 1 serial ports (d7) ATA controller 1 at 1f0/3f4/0 (irq 14 dev 9) (d7) ATA controller 2 at 170/374/0 (irq 15 dev 9) (d7) ata0-0: QEMU HARDDISK ATA-7 Hard-Disk (51200 MiBytes) (d7) Searching bootorder for: /pci@i0cf8/*@1,1/drive@0/disk@0 (d7) PS2 keyboard initialized (d7) All threads complete. (d7) Scan for option roms (d7) Running option rom at c980:0003 (d7) pmm call arg1=1 (d7) pmm call arg1=0 (d7) pmm call arg1=1 (d7) pmm call arg1=0 (d7) Searching bootorder for: /pci@i0cf8/*@4 (d7) (d7) Press F12 for boot menu. (d7) (d7) Searching bootorder for: HALT (d7) drive 0x000f6400: PCHS=16383/16/63 translation=lba LCHS=1024/255/63 s=104857600 (d7) (d7) Space available for UMB: ca800-ef000, f5e20-f6400 (d7) Returned 258048 bytes of ZoneHigh (d7) e820 map has 6 items: (d7) 0: 0000000000000000 - 000000000009fc00 = 1 RAM (d7) 1: 000000000009fc00 - 00000000000a0000 = 2 RESERVED (d7) 2: 00000000000f0000 - 0000000000100000 = 2 RESERVED (d7) 3: 0000000000100000 - 000000009f7ff000 = 1 RAM (d7) 4: 000000009f7ff000 - 000000009f800000 = 2 RESERVED (d7) 5: 00000000fc000000 - 0000000100000000 = 2 RESERVED (d7) enter handle_19: (d7) NULL (d7) Booting from Hard Disk... (d7) Booting from 0000:7c00 (XEN) d8v0: unhandled page fault (ec=0000) (XEN) Pagetable walk from 0000000000000028: (XEN) L4[0x000] = 0000000000000000 ffffffffffffffff (XEN) domain_crash_sync called from entry.S: fault at ffff82d08022a472 create_bounce_frame+0x12b/0x13a (XEN) Domain 8 (vcpu#0) crashed on cpu#6: (XEN) ----[ Xen-4.6.6-9.el7 x86_64 debug=n Not tainted ]---- (XEN) CPU: 6 (XEN) RIP: e033:[<ffffffff8103f261>] (XEN) RFLAGS: 0000000000000292 EM: 1 CONTEXT: pv guest (d8v0) (XEN) rax: 0000000000000000 rbx: ffffffff81e05720 rcx: 0000000000000000 (XEN) rdx: 0000000000000030 rsi: ffffffff82203efc rdi: ffffffff8241d460 (XEN) rbp: ffffffff82203ec8 rsp: ffffffff82203e10 r8: 0000000000000000 (XEN) r9: ffffffff82203f00 r10: 00000000ffffffff r11: ffffffff82203f04 (XEN) r12: ffffffff82203e78 r13: ffffffff82203e7c r14: ffffffff82203e80 (XEN) r15: ffffffff82203e84 cr0: 000000008005003b cr4: 00000000003526e0 (XEN) cr3: 0000000426314000 cr2: 0000000000000028 (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: e02b cs: e033 (XEN) Guest stack trace from rsp=ffffffff82203e10: (XEN) 0000000000000000 ffffffff82203f04 0000000000000000 ffffffff8103f261 (XEN) 000000010000e030 0000000000010092 ffffffff82203e58 000000000000e02b (XEN) 0000000000000000 ffffffff8241d460 0000000000000000 0000000000000000 (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000 (XEN) 0000000000000000 0000000000000000 ffffffff8241d460 ffffffff82203f04 (XEN) ffffffff82203f00 ffffffff82203efc ffffffff82203ef8 ffffffff82203f40 (XEN) ffffffff8103fce6 ffffffff82203f14 ffffffff82203f10 ffffffff82203f0c (XEN) ffffffff82203f08 0000000000003027 0000000000000000 0000000080000008 (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000 (XEN) 0000000000000000 0000000000000000 ffffffff82203ff8 ffffffff8246c490 (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000 (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000 (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000 (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000 (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000 (XEN) 0000000000000000 0000000000000000 0f00000060c0c748 ccccccccccccc305 (XEN) cccccccccccccccc cccccccccccccccc cccccccccccccccc cccccccccccccccc (XEN) cccccccccccccccc cccccccccccccccc cccccccccccccccc cccccccccccccccc (XEN) cccccccccccccccc cccccccccccccccc cccccccccccccccc cccccccccccccccc (XEN) cccccccccccccccc cccccccccccccccc cccccccccccccccc cccccccccccccccc Submitted to ELRepo as http://elrepo.org/bugs/view.php?id=820 -- Adi Pircalabu, System Administrator DDNS, a Total Internet Company 159 Barkly Avenue, Burnley, Vic 3121, T +61 3 9815 6868

2 2

CentOS 7 AMI missing ENA support
by Allen, Jonathan 24 Jan '18

24 Jan '18

Getting this API error trying to launch CentOS 7 (x86_64) - with Updates HVM AMI with AWS c5.large instance type in us-west-2: ==> amazon-ebs: Error launching source instance: InvalidParameterCombination: Enhanced networking with the Elastic Network Adapter (ENA) is required for the 'c5.large' instance type. Ensure that you are using an AMI that is enabled for ENA. AMI ID ami-a042f4d8, which is the 1801_01 version. Any ETA on this support, or is this an error in the new version that was released? Thanks, Jonathan

1 0

Xen 4.4 Immediate EOL
by Kevin Stange 22 Jan '18

22 Jan '18

Hi, I am very sorry to do this on short notice, but obviously Meltdown and Spectre are a lot more than anyone was really expecting to come down the pipeline. Xen 4.4 has been EOL upstream for about a year now and I have personally been reviewing and backporting patches based on the 4.5 versions made available upstream. Given that 4.5 is now also reaching EOL, backporting to 4.4 will become harder and I've already taken steps to vacate 4.4 in my own environment ASAP. Spectre and Meltdown patches most likely will only officially reach 4.6 and are very complicated. Ultimately, I don't think this is a constructive use of my time. Therefore, I will NOT be continuing to provide updated Xen 4.4 builds any longer through CentOS Virt SIG. If someone else would like to take on the job, you're welcome to try. Pop by #centos-virt on Freenode to talk to us there if you're interested. For short term mitigation of the Meltdown issue on 4.4 with PV domains, your best bet is probably to use the "Vixen" shim solution, which George has put into the xen-44 package repository per his email from two days ago. Vixen allows you to run PV domains inside HVM guest containers. It does not protect the guest from itself, but protects the domains from each other. Long term, your best bet is to try to get up to a new version of Xen that is under upstream security support, probably 4.8. -- Kevin Stange Chief Technology Officer Steadfast | Managed Infrastructure, Datacenter and Cloud Services 800 S Wells, Suite 190 | Chicago, IL 60607 312.602.2689 X203 | Fax: 312.602.2688 kevin(a)steadfast.net | www.steadfast.net

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