similar to: VMWare Server -- Which Kernel is Best

Thanks for all the great stuff. Executive Summary: Kernel Parameters or Special Kernel for 5.2 on VMWare? More Details: Is it the best practice to use the specially compiled kernels (when available, typically here: http://people.centos.org/~tru/kernel-vm/5/RPMS/i386/ ) or are kernel parameters now able to achieve the same thing? This bug report: http://bugs.centos.org/view.php?id=2189 seems

OK, so I need to bring up a new vm and was wondering what the state of vm kernels for centos. I have read this http://bugs.centos.org/view.php?id=2189about the tick divider but it wasn't clear what the best step forward is for centos 5.1 was, i usually ran with the clocksource=pit option and it looked like that and the divider option caused a problem. I have in the past compiled my own but

Hi everyone: Just a follow up on the fast clock issue: "Can you double-check that 'cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq' outputs the same number as your 'cpuKHZ' setting in your config.ini file?" There is no cpufreq directory under /sys/devices/system/cpu/cpu0; all I see is "cache" (dir), "crash_notes" (a file) and

I'm running VMware Server 1.0.6 on a CentOS 5.2 host and am having some clock difficulties. Host OS is x86_64 running on 1.9 GHz AMD Sempron, nVidia chipset. Guest OS's are 32-bit FreeBSD (clock works fine after disabling ACPI, setting the clock source to the PIT, and running the guest tools), WinXP (unknown clock status), and i686 CentOS 5.2 (here is the problem). I've tried pretty

Hi all, If you are using the kernel divider= option in your vmware quest, you are probably aware of the bugs reported at: https://bugzilla.redhat.com/show_bug.cgi?id=315471 Someone @redhat "confirmed" the fix is in the test kernel -92. I tried it but it seems to have the same problem as before - when used with clocksource=pit, it hangs on bootup. Wonder if some of you can test this

Hi everyone, I have been struggling with having the clock of Linux VM's (including CentOS 4.6 and 5.1) running very fast under VMWare, no matter what I have tried. My platform: - AMD Turion X2 TL-60 - AMD 690 chipset with integrated Radeon x1250 (probably doesn't concern in this case) - Windows Vista Ultimate x64, all Windows Update patches loaded (no SP1 yet) - 4GB RAM - VMWare

After upgrading to 4.7 x86_64 on all our boxes (from 4.6), we have 3 VMware Server 1.0.5 hosts that are unstable. Sometimes they spontaneously reboot, other times they freeze and require a hard reset. Under 4.6, they were rock solid. Failures tend to be associated with a guest start-up event, but are often at random times as well. There is no useful evidence in either the vmware or messages log

Under 4.6, we recompiled the kernel with HZ=100 for improved time-keeping in VMware guests. I've read about the backporting of the divider patch into RHEL/CentOS 4.7, but it sounds like it also comes with some bugs. I have been unable to determine the current status of the divider option in the latest 4.7 kernel update. I have experimented with "divider=10" and it works with no major

Howdy, I am having time-drift issues on my CentOS VM. I had referred to following documentation: http://wiki.centos.org/TipsAndTricks/VMWare_Server , however it didn't help. I used kickstart for creating this VM and I am listing important steps in ref to timekeeping issue. Any comments or suggestion would be appreciated. - CS. ------------------- # For EL5 virtual machines, Append the

I've posted this question to the Gnome users list, but so far no luck, so I thought I'd mention this here. A little while ago, I noticed that I was no longer able to log out from my GDM. I'm running the default GDM (2.16) that comes with CentOS, and this problem started up right about the same time that I updated to the 53.1.4 kernel (from the 8.1.15 version). As I've posted

I saw that there is a local root exploit in the wild. http://blog.kagesenshi.org/2008/02/local-root-exploit-on-wild.html And I see my centos box still has: 2.6.18-53.1.4.el5 yum says there are no updates... am I safe? Valent.

[ Sorry for the very belated response ] Thanks, Tru. What is the process for Sean's work to make it into the standard CentOS5 and 5.1 repositories? How will the tools package get updated as you patch the kernel? Perhaps we should cc Sean on the email? His home page on the Duke server has no contact information. Thanks, Andrew [ Resent to the centos-virt email list, as recommended by

Hi, I am running CentOS 5.3 32bit as a VirtualBox 3.0.0 guest running on Windows XP. The Windows host CPU usage is constantly at 50% although the CentOS guest is completely idle (i.e. 0.00 load average). I know this is a common problem related to the 1000Hz frequency that the CentOS kernel runs at. With previous versions of CentOS, I used the kernel-vm package [1] and it solved my problem.

Howdy all, I compiled a set of kernel RPMs with the upstream kernel patch applied. Obviously they haven't gone through the full QA process, but I know of them running on approximately 50 servers without any reported issues. They're available at: http://erek.blumenthals.com/blog/2008/02/11/rhel-5-centos-5-kernel-rpms-patched-against-vmsplice-local-root-exploit/ Let me know any

Just installed CentOS 5.1 on VMware ESX and am attempting to play with the newly added tick_divider feature. It doesn't seem to be making any difference in the number of timer interrupts though. I set tick_divider=10 which should reduce the number of timer interrupts to 100. I wrote a nasty little scripts that queries /proc/interrupts every 1 second and still see an increase each second in

Hija! I get this error while doing the cleanup, hints? Cheers, JJ ----------------------------------------------------------- [root at neonbox ~]# package-cleanup --oldkernels --count 2 Setting up yum Loading "priorities" plugin Loading "kernel-module" plugin Loading "protectbase" plugin Loading "kmdl" plugin Loading "skip-broken" plugin

We've noticed our fully-virtualized KVM guests' time keeps getting faster, despite running ntpd. A quick google reveals this to be a known problem with virtual guests. It seems there are a variety of solutions, some apparently vendor-specific. What is the best practice as of now for KVM guests? * Setting independent_wallclock=1 (or is that a xen-only thing)? * Passing kernel

When upstream released 5.1, everybody wanted to test a new kernel parameter that could adjust the system clock rate at boot time to something else than the standard 1000Hz clock rate. A lot of testings has been done (thanks to Akemi Yagi for her great work) and you can see the results here : http://bugs.centos.org/view.php?id=2189 As you can read at the bottom of the comments, it seems it was a

I've been doing this on CentOS 4 and CentOS 5 but after installing 2.6.18-53.1.4el kernel, I'm having a bit of a struggle... # make -C /lib/modules/2.6.18-53.1.4.el5/build \ SUBDIRS=/usr/src/appletalk modules make: Entering directory `/usr/src/kernels/2.6.18-53.1.4.el5-i686' CC [M] /usr/src/appletalk/aarp.o CC [M] /usr/src/appletalk/ddp.o CC [M] /usr/src/appletalk/dev.o

Can someone please clarify the status of minimal install images of Centos 5 for VMware? I see the work that 'tru' did, but it is still at 5 (not 5.1). Is that the best image available (just run yum update), or what about the minimal image listed on the VMware Virtual Appliance site? Ted Miller Indiana, USA