On 10/12/20 3:24 AM, Dr Francis Greaves wrote:
I am running XEN on CentOS Linux release 7.8.2003
I have a Debian 7, and two Gentoo DomU Guests running fine.
I am trying to get an Ubuntu 20.04 DomU Guest running but I get this error when
trying to run the netboot kernel image
xc_dom_probe_bz
On 9/27/20 1:23 PM, 9f9dcad3f78905b03201--- via CentOS-virt wrote:
Christoph,
I understand this is the better option if HVM is available.. Im not sure how to
make use of this kernel in a non-HVM, PV environment. I'm a little disturbed by
the fact that there isnt PV support in CentOS 8, I hope
On 2/27/20 5:12 AM, Christoph wrote:
It seems to be a problem with kernel... I use the kernel-ml there
(5.5.6)... with kernel from centos-virt repo (4.9.*) it works without
this problem...
Have you made some pass to look for related problems on the xen-users or xen-devel mailing list or in the
On 5/16/19 2:12 AM, Karel Hendrych wrote:
> Hi,
>
> is there any guide for CPU microcode updates on CentOS6, Xen 4.10, kernel 4.9
> ?
I'm not sure off the top of my head.
You can add ucode=scan to the xen command line, add a file
/path/to/microcode_file as the last item in your boot list, and
On 3/7/19 10:30 AM, Akemi Yagi wrote:
> On Thu, Mar 7, 2019 at 9:42 AM George Dunlap wrote:
>>
>> Hey all,
>>
>> We've been on 4.9 for some time now, and while it's still supported, I
>> think it's time to start thinking about upgrading, and I'd like input
>> from the community about which version
On 09/18/2018 11:55 PM, Christoph wrote:
>
> Hi
>
> can someone say me how to update the µcode of the cpu with xen?
>
> I have added the ucode=scan parameter to xen but it does not seem to work...
>
> the µcode version of my xeon is really old :/
>
> model name : Intel(R) Xeon(R) CPU E3-127
On 08/02/2018 03:58 AM, T.Weyergraf wrote:
> Hi
>
> Thanks for providing updated Packages, they are much appreciated. At work, we
> are currently running an entire production infrastructure on Xen4CentOS,
> with quite some success.
>
> We are looking into a refresh towards CentOS 7 along with ne
On 02/27/2018 07:50 AM, John Vetter wrote:
> Hi,
> I'm trying to run an arbitrary Xen version (4.7.x) on a recent kernel (say,
> 4.13.x) on CentOS 7.
> What is the recommended way for doing this? (I am new to Xen and
> virtualization).
> I tried the following:
> 1. installed xen4centos.
> 2. buil
On 01/18/2018 09:56 AM, Kevin Stange wrote:
> Apparently I failed to do proper due diligence before making this
> recommendation. The Xen 4.4 repo does not have vixen build because of a
> dependency upon grub2 which isn't available under CentOS 6. Your best
> bet would be to use Vixen for PV doma
On 01/05/2018 05:26 PM, Shaun Reitan wrote:
> I can confirm the issue with 2.6.32-696.18.7.el6.x86_64, but mine looks
> alittle different... Maybe because i'm using pvgrub.
>
> = Init TPM Front
> Tpmfront:Error Unable to read device/vtpm/0/backend-id during tpmfront
Problems start before any of the kaiser code executes, though it could still be
related to CONFIG_KAISER since that has effects beyond kaiser.c.
---
(early) Initializing cgroup subsys cpuset
(early) Initializing cgroup subsys cpu
(early) Linux version 2.6.32-696.18.7.el6.x86_64
(mockbu...@c1bl.r
On 01/04/2018 10:49 AM, Akemi Yagi wrote:
> On Thu, Jan 4, 2018 at 9:51 AM, wrote:
>
>> Please patch the CentOS-virt Kernel to fix the
>> Kernel Side-Channel Attacks vulnerabilities.
>>
>> The latest CentOS-virt kernel was released in November, as seen below.
>>
>> kernel-4.9.63-29.el7.x86_64.rpm
On 11/14/2017 03:13 AM, T.Weyergraf wrote:
> Hi
>
> I wonder, if live migration (back and forth) is possible on mixed Haswell
> (Xeon V3) and Broadwell (Xeon V4) installations. The only notable difference
> between the two is apparently a working TSX implementation on V4, which got
> disabled on
Hi,
We had a potentially network related crash on a dom0 with Linux 4.9.39 / Xen
4.8 and as of today I can't find any fixes in stable/linux-4.9.y,
xen/staging-4.8, or CPU microcode updates that look like a smoking gun. I can't
rule out that it's Xen related. The backtraces are:
[ c
On 11/07/2017 04:57 PM, Sarah Newman wrote:
> On 11/07/2017 03:12 PM, Nathan March wrote:
>> Since moving from 4.4 to 4.6, I've been seeing an increasing number of
>> stability issues on our hypervisors. I'm not clear if there's a singular
>> root cause here,
On 11/07/2017 03:12 PM, Nathan March wrote:
> Since moving from 4.4 to 4.6, I've been seeing an increasing number of
> stability issues on our hypervisors. I'm not clear if there's a singular
> root cause here, or if I'm dealing with multiple bugs.
>
>
>
> One of the more common ones I've seen,
On 06/20/2017 05:06 AM, George Dunlap wrote:
> Xen 4.6.3-15 packages for CentOS 6 and CentOS 7 are on their way
> through the build system. They should show up in centos-virt-testing
> in a few hours, and in the main mirrors tomorrow morning (God
> willing).
>
> These contain several critical upd
On 06/12/2017 03:25 PM, Kevin Stange wrote:
> On 06/12/2017 05:17 PM, Sarah Newman wrote:
>> Is there any problem moving to 4.9.31? This contains upstream commits
>> f2e767bb5d6ee0d9 for mpt3sas and
>> 69861e0a52f87333 for dom0 memory mappings.
>
> 4.9.31-27 is tagged
}/%{?buildsubdir}\
+%{nil}
+
+%ifnarch noarch
+%global __debug_package 1
+%files -f debugfiles.list debuginfo
+%defattr(-,root,root)
+%endif
+
+%endif
+
%install
pushd linux-%{version}-%{release}.%{_target_cpu} > /dev/null
@@ -825,6 +881,12 @@ fi
%endif
%changelog
+* Sun Jun 11 2017 Sarah N
I experienced a bug that is likely the same as
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1350373 . Commit
b7dd0e350e0bd4c0fddcc9b8958342700b00b168 , which is supposed to fix it, doesn't
appear in this kernel and doesn't apply cleanly either.
Is there any point in trying to backport the
On 05/17/2017 01:30 PM, Jerry wrote:
> For some reason each of the 5, 6 & 7 releases have issues with the mpt2sas
> driver (there isn't enough swiotlb allocated by default for the driver to
> work properly, and the units for that parameter changed between 5 and 6).
> It's like this driver has bad
On 05/16/2017 09:04 PM, Jerry wrote:
>
> Turns out dracut was unable to mount the root file system. So I went back
> into the 3.10 kernel again to see if the mpt2sas or mpt3sas driver was in
> its initramfs file... and it wasn't:
>
>
> $ sudo lsinitrd -k 4.9.25-27.el7.x86_64 | grep mpt
> -rw-r
Hi,
We were hoping to attend an IRC meeting this morning but it looks like that
didn't happen. Has this been moved to once a month or was this a special week?
Thanks, Sarah
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On 03/28/2017 02:55 PM, PJ Welsh wrote:
> The mystery gets more interesting... I now have a CentOS 7.3 Dell R710
> server doing the exact same thing of rebooting immediately after the Xen
> kernel load. Just to note this is a second system and not just the first
> system with an update. I hope I'm
On 04/02/2017 02:49 AM, Chris Elliott wrote:
> Hi all
>
> I’ve got a few Intel Z87 chipset machines with Adaptec 5405 raid cards
> (latest firmware), they work fine on 3.18 but during Dom0 boot using kernel
> 4.9.13 it hangs at “Using clocksource tsc” and the aacraid driver keeps
> trying to res
On 03/16/2017 04:22 PM, Kevin Stange wrote:
>> I still can't rest assured the NIC issue is fixed, but no 4.4 or 4.9
>> server has yet had a NIC issue, with some being up almost a full month.
>> It looks promising! (I'm knocking on all the wood everywhere, though.)
>
> I'm ready to call this concl
On 03/24/2017 11:35 AM, PJ Welsh wrote:
> As a follow up I was able to test fresh install on Dell R710 and a Dell
> R620 with success on CentOS 7.3 without issue on the new kernel. My new
> plan will be to just move this C6 to one of the C7 I just created.
That sounds like a compiler problem, sin
On 02/18/2017 06:23 AM, Johnny Hughes wrote:
> On 02/18/2017 02:07 AM, Christoph wrote:
>>
>> Hi
>>
>> are there somewhere pkgs with xen 4.7 or 4.8 for centos7?
>>
>
> The SIG has agreed to maintain every other release (even numbered release) of
> Xen. So there will be a 4.8 set of packages a
On 01/30/2017 03:22 AM, George Dunlap wrote:
>
> I think that comment may be a little old. I do try to support SELinux
> -- the smoke tests I use before pushing changes have it enabled by
> default, and they use both qemu-xen and blktap.
>
> But it's difficult to help debug problems when you ha
On 01/26/2017 08:45 AM, Sarah Newman wrote:
> On 01/26/2017 08:06 AM, Günther J. Niederwimmer wrote:
>> Hello,
>>
>> CentOS 7.(3) Xen 4.4,
>>
>> Can I find any Doc for selinux with XEN, I found many Problems with selinux
>> on
>> Dom0 ?
>>
On 01/26/2017 08:06 AM, Günther J. Niederwimmer wrote:
> Hello,
>
> CentOS 7.(3) Xen 4.4,
>
> Can I find any Doc for selinux with XEN, I found many Problems with selinux
> on
> Dom0 ?
>
> Or have I to disable selinux when I install XEN.
>
> Thank's for a answer.
>
What problems and what ver
I think this may have been asked before, but what would it take to get
debuginfo packages built for the Xen4CentOS kernels? If it's just a patch for
kernel.spec file that nobody has gotten around to, what is the best starting
place for making that patch?
Thanks, Sarah
___
On 08/23/2016 01:10 PM, Sarah Newman wrote:
> On 08/23/2016 12:59 PM, Craig Thompson wrote:
>
>> I was thinking that in iterations past, it was possible just to run the
>> hypervisor, put a symlink in /etc/xen/auto, and VMs would be auto-started
>> upon reboot. Maybe I&
On 08/23/2016 12:59 PM, Craig Thompson wrote:
> I was thinking that in iterations past, it was possible just to run the
> hypervisor, put a symlink in /etc/xen/auto, and VMs would be auto-started
> upon reboot. Maybe I'm wrong, and maybe those older boxes had libvirt
> installed on them, too.
On 04/12/2016 05:18 PM, Nathan Coulson wrote:
> (Apologies for the earlier top post)
>
> Running the kernel natively, on 3.10 or 3.18 (kernel from virt sig)
> * CentOS Linux (3.18.25-19.el7.x86_64) 7 (Core))
> * CentOS Linux (3.10.0-327.13.1.el7.x86_64) 7 (Core)
>
> It works as expected with no
On 04/05/2016 01:42 PM, Peter Braun wrote:
> Hi,
>
> Centos 7
> Xen4CentOS - 4.6.1
> Open vSwitch
>
> When i specify custom name of the domU NIC than it refues to start
>
> vif = [ 'vifname=vNIC1' ]
>
>
> libxl: error: libxl_exec.c:118:libxl_report_child_exitstatus:
> /etc/xen/scripts/vif-ope
On 03/10/2016 12:05 AM, Sarah Newman wrote:
> On 03/09/2016 08:15 PM, Sarah Newman wrote:
>> I've been running 3.18.25-18.el6.x86_64 + our build of xen 4.4.3-9 on one
>> host for the last couple of weeks and have gotten several soft lockups
>> within the last 24 hours.
On 03/09/2016 08:15 PM, Sarah Newman wrote:
> I've been running 3.18.25-18.el6.x86_64 + our build of xen 4.4.3-9 on one
> host for the last couple of weeks and have gotten several soft lockups
> within the last 24 hours. I am posting here first in case anyone else has
> exp
I've been running 3.18.25-18.el6.x86_64 + our build of xen 4.4.3-9 on one host
for the last couple of weeks and have gotten several soft lockups
within the last 24 hours. I am posting here first in case anyone else has
experienced the same issue.
Here is the first instance:
sched: RT throttling
On 02/21/2016 08:02 PM, Shaun Reitan wrote:
> I've seen this issue on about 15 different servers now. Anybody else seeing
> this?
>
> Screenshot: http://imgur.com/cBcwr8l
>
> I also have a video of the boot process if that will be helpful.
Are you missing the initrd line in /boot/grub/menu.lst?
On 02/17/2016 04:30 AM, George Dunlap wrote:
> I have the following packages going through the CBS:
> * A CentOS 7 xen-4.6.1-2, with XSAs 170 and 154
> * A CentOS 6 xen-4.6.1-2, with XSAs 170 and 154
> * A CentOS 6 xen-4.4.3-11, with XSAs 170
>
> All these should show up in mirrors hopefully somet
On 01/21/2016 04:32 AM, George Dunlap wrote:
> I'm a developer, not a server admin, so I can't gauge how important
> this issue is. Before making such a change, I'd like to hear opinions
> from other people in the community about how important (or not) it is
> to avoid breaking xm, given the ampl
It looks like no XSA-142 patch, which is "libxl fails to honour readonly flag
on disks with qemu-xen" has been applied to Xen4CentOS. I assume this
was on purpose?
If not, I can have someone try adding the original patch from
http://xenbits.xen.org/xsa/advisory-142.html and some variant of the c
On 11/01/2015 12:07 PM, Karel Hendrych wrote:
> Hi, just a heads-up: 3.18.21 didn't boot up on HP ML310e Gen8 v2, SATA drives
> in AHCI mode, / on software raid 1, no LVM. It ended up in kernel panic
> with unable to mount root fs. Attached. No difference in grub kernel/xen
> settings.
>
> I did
Just a heads up, the changelog for the xen package says
* Thu Oct 22 2015 George Dunlap - 4.4.3-2.el6.centos
- Import XSAs 149-153
The source RPM also has the patch for XSA 148, as shown in the git log.
Regards, Sarah
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On 07/30/2015 05:29 AM, Elliot Fox wrote:
> The TL;DR is: Everything I've found to kickstart a new vanilla rhel/centos
> guest points to specifying a kernel & and initrd- for RHEL/Centos 5. But
> where is the xen initrd for Centos 6? The Xen4Quickstart instructions are
> awesome, but after insta
On 06/04/2015 08:32 AM, George Dunlap wrote:
> for i in {1..80} ; do xl create null.cfg name=\"t$i\"
> kernel=\"/boot/vmlinuz-3.18.12-11.el7.x86_64\" memory=\"40\"
> on_crash=\"preserve\" ; done
>
> And then used the shell snippet from the bug report to generate load:
>
> while true; do xl list
By default, /var/lib/xenstored is mounted tmpfs in centos 5 but this doesn't
appear to be true for Xen4CentOS. This can cause performance issues as
mentioned in https://bugzilla.redhat.com/show_bug.cgi?id=446089
I'm not sure if this should be part of xencommons, but if not, adding a tmpfs
mount
On 03/15/2015 07:39 PM, Nico Kadel-Garcia wrote:
> On Sun, Mar 15, 2015 at 8:26 PM, Sarah Newman wrote:
>> On 03/15/2015 03:25 PM, Nico Kadel-Garcia wrote:
>>> So I'm right back to my effectively unanswered original questions. So
>>> please: I asked a very spec
On 03/15/2015 03:25 PM, Nico Kadel-Garcia wrote:
> So I'm right back to my effectively unanswered original questions. So
> please: I asked a very specific pair of questions, and they remain
> unanswered. CentOS 5 Xen server (hypervisor, or Dom0, whatever we want
> to call it this week): Does CentOS
Do you have to use KVM? IIRC it runs fine under virtualbox. I think 10.2+
should work on xen but
haven't tried it yet.
On 01/13/2014 07:52 PM, Howard Leadmon wrote:
>
> I was trying to load a FreeBSD 10 VM on my CentOS 6.4 machine, and it keeps
> hanging and not completing the boot. I have
On 05/26/2013 05:33 PM, Trey Dockendorf wrote:
>
> On May 26, 2013 6:52 PM, "Sarah Newman" <mailto:s...@prgmr.com>> wrote:
> >
> > On 05/26/2013 02:12 PM, John R. Dennison wrote:
> > > http://dev.centos.org/centos/6/xen-c6
> > >
>
On 05/26/2013 02:12 PM, John R. Dennison wrote:
> http://dev.centos.org/centos/6/xen-c6
>
> Still in development and testing but it has a lot of momentum behind it.
I saw packages for libvirt but not xcp-xapi. Do you know if there are any
plans to support xapi?
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