On Monday, 14 December 2009 08:08:32 -0300, Daniel Bareiro wrote: > > I recommend to use distro-provided modules (or kernel.org kernels > > within their support period) for production use. This ensures you > > get security and stability fixes. kvm-89 will fix these issues, > > but as it's a development snapshot, may introduce new issues. > Minutes ago I've downloaded of kernel.org the source code of Linux > 2.6.32 because I wanted to test with KSM, that it seems to me a very > interesting aggregate. As you said above, surely the modules of 2.6.32 > are going to be newer than the compiled ones with KVM-88 with security > fixes like the one of the DSA-1907-1. > > Then, I imagine that only it would be necessary to compile the > userspace. The steps that I habitually followed are the mentioned ones > in the section 'Unpacking and configuring kvm components' of this [1] > document, but I suppose that to only compile userspace it will be > necessary to follow a different procedure. Is there some document that > you can indicate to me where are mentioned these steps? According to I found looking for in Internet, qemu-kvm does not include the kernel modules but only the userspace and it is considered to be stable. I've downloaded qemu-kvm-0.11.0 and I build it with 'make' and 'make install' like did with kvm-nn but it seems that KSM is not working: root@ubuntu:~# uname -a Linux ubuntu 2.6.32-dgb #1 SMP Mon Dec 14 06:18:06 ART 2009 x86_64 GNU/Linux root@ubuntu:~# cat /sys/kernel/mm/ksm/max_kernel_pages 253738 root@ubuntu:~# cat /sys/kernel/mm/ksm/run 1 root@ubuntu:~# cat /sys/kernel/mm/ksm/pages_sharing 0 root@ubuntu:~# cat /sys/kernel/mm/ksm/pages_shared 0 Is it possible that there is to apply a patch on some of the files of qemu-kvm-0.11.0? At least a fast search in the files does not show some definition of MADV_MERGEABLE. Also I have understood that it must exist support of KSM on glibc. I'm using ubuntu Hardy Heron. Is it possible that this support is not enabled? Regards, Daniel -- Fingerprint: BFB3 08D6 B4D1 31B2 72B9 29CE 6696 BF1B 14E6 1D37 Powered by Debian GNU/Linux Squeeze - Linux user #188.598
Attachment:
signature.asc
Description: Digital signature
