similar to: KSM failure on Xen 4.0.1/FC 13

Xen Developers, I noticed that my PV ops guests cause the hypervisor to invoke hypercall_page_initialise twice from traps.c (i.e. through wrmsr_hypervisor_regs), for different hypercall_page addresses. Looking at the code, I see hvmloader.c causing one of those, in its main. I read the HVM Loader Xen wiki page, Googled, spelunked the source, etc. but cannot find where / why the other hypercall

Xen Users, Has anyone on the list been able to run Xen 4 on an Intel DX58S02 board? Sincerely, John McDermott ---- What is the formal meaning of the one-line program #include "/dev/tty" J.P. McDermott building 12 Code 5542 john.mcdermott@nrl.navy.mil Naval Research Laboratory voice: +1 202.404.8301 Washington, DC 20375, US fax: +1 202.404.7942

Xen-users, I have what I think is a bug in the serial console interaction of Xen and Ubuntu. Essentially, the serial console appears to work just fine until it is passed off to dom 0 from Xen. Then it stops communicating with dom0, but still communicates with Xen, if I use the control-A escape sequence. Google will not show me anything related to this. I have local RS-232 serial console working

Dear all: I am a newbie for Xen, and now I want to install Xen on my Fedora 13 machine. I follow Mr.Pasi Kärkkäinen''s tutorial, which is "Fedora 13 Xen 4 Tutorial", but I can not boot with the new kernel. I can not go through the step "Verify the Xen step after reboot", when I reboot and choose the new kernel, the system hang on "Starting xend daemon", so

Are their any good guides out there on how to use ksmctl to enable and tune KSM performance on Centos/RedHat At the moment the only guidelines I can find are from the following OLS paper, plus the Linux Kernel Docs. * http://www.kernel.org/doc/ols/2009/ols2009-pages-19-28.pdf * http://www.kernel.org/doc/Documentation/vm/ksm.txt On a basic dual core testbed with 4GB Ram and 4-5 VMs I've

I have had ksm[2] causing a high load (on recent centos7), such things have been reported before[1]. I suspect that this could be related to windows vm's. I am having not that many vm's in the current setup, and this load increased on the hosts with a few windows vm's that are already generating more load that others. Is there a way to disable ksm for specific vm's in the

Hi, Could anyone provide (or point me to) information on how KSM merging behaves when performing live migrations? Does libvirt perform any special work to trigger KSM scanning of the migrated pages? Any guidance is appreciated. James

Hi guys, Any chance we could get KSM support in centos 5.4? Maybe the centosplus ones or a gift from elrepo.

flight 11929 xen-unstable running [real] http://www.chiark.greenend.org.uk/~xensrcts/logs/11929/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-i386-i386-xl-qemuu-winxpsp3 <none executed> queued test-amd64-amd64-xl-qemuu-winxpsp3 <none executed> queued test-amd64-amd64-xl-qemuu-win7-amd64

Hi, This is a very very strange thing I have seen in Linux Kernel. I wrote a simple program, all it does is to load a file into memory. This programming is running on a virtual machine while linux-kvm is working as the hypervisor. I enabled ksm in the hypervisor level, my host machine was installed with a Opensuse11.4 while the guest OS is Fedora14, the strange thing is, whenever I run following

Hi, This is a very very strange thing I have seen in Linux Kernel. I wrote a simple program, all it does is to load a file into memory. This programming is running on a virtual machine while linux-kvm is working as the hypervisor. I enabled ksm in the hypervisor level, my host machine was installed with a Opensuse11.4 while the guest OS is Fedora14, the strange thing is, whenever I run following

Hi. I'm running FreeBSD with Samba 3.0.28 and have had success previously with FreeBSD and an earlier version of Samba, and am in the process of setting up a member server to act as a file server using the above combination. I have created a kerberos ticket, and successfully joined the domain: ksm-smb# net ads join -UAdministrator%password Using short domain name -- END-DESIGN Joined

Laurentiu, Just to chip in, without thoroughly checking the thread (which I'd like to apologize in advance for): have you tried to test other kernel instead of the stock one? You can have a look at http://elrepo.org/tiki/kernel-ml and http://elrepo.org/tiki/kernel-lt and use them for some comparison testing. Cheers, --- Adi Pircalabu On 22-08-2016 18:31, Laurentiu Soica wrote: > No

On Mon 31-07-17 16:23:26, ZhenweiPi wrote: > On 07/31/2017 03:51 PM, Michal Hocko wrote: > > >On Mon 31-07-17 15:41:49, Wei Wang wrote: > >>>On 07/31/2017 02:55 PM, Michal Hocko wrote: > >>>> >On Mon 31-07-17 12:13:33, Wei Wang wrote: > >>>>> >>Ballooned pages will be marked as MADV_DONTNEED by the hypervisor and >

No luck with qemu-kvm-ev, the behavior is the same. Running perf record -a -g on the baremetal shows that most of the CPU time is in _raw_spin_lock Children Self Command Shared Object Symbol - 93.62% 93.62% qemu-kvm [kernel.kallsyms] [k] _raw_spin_lock - _raw_spin_lock + 45.30%

I've tried with KSM disabled and nothing changed. I've upgraded KVM to qemu-kvm-ev. I'm waiting to see if there are any improvements and report back. ?n mie., 17 aug. 2016 la 15:10, Boris Derzhavets <bderzhavets at hotmail.com> a scris: > For myself KSM is unpredictable feature. The problem is Compute, just this > node > > does "copy on write" , so only

Hello, I have been trying to take the derivative of a quadratic B-spline obtained by using the COBS library. What I would like to do is similar to what one can do by using fit<-smooth.spline(cdf) xx<-seq(-10,10,.1) predict(fit, xx, deriv = 1) The goal is to fit the spline to data that is approximating a cumulative distribution function (e.g. in my example, cdf is a 2-column matrix with x

We have allowed migration for only LRU pages until now and it was enough to make high-order pages. But recently, embedded system(e.g., webOS, android) uses lots of non-movable pages(e.g., zram, GPU memory) so we have seen several reports about troubles of small high-order allocation. For fixing the problem, there were several efforts (e,g,. enhance compaction algorithm, SLUB fallback to 0-order

Greetings, I have an interesting situation where SAMBA servers that are across various routers are requiring the fully qualified domain name. Example: \\xyx.nrl.navy.mil. If our SAMBA server is local (behind the same router as our client), then the \\xyx name will work fine.... This allows you to connect, but if you are browsing the network neighborhood, and you double click on the \\xyx when

We have allowed migration for only LRU pages until now and it was enough to make high-order pages. But recently, embedded system(e.g., webOS, android) uses lots of non-movable pages(e.g., zram, GPU memory) so we have seen several reports about troubles of small high-order allocation. For fixing the problem, there were several efforts (e,g,. enhance compaction algorithm, SLUB fallback to 0-order