ESXi 6.0 U1 host high CPU (climbing slowly) but VM idle

I have ESXi 6.0 Update 1 (Build 3029758) installed on new equipment (Atom C2750, 16 GB of RAM).

VM is Solaris 11.0 with 1 vCPU and 4 GB of RAM.  Solaris was installed from floor-11-1111-text - x 86 .iso without any additional configuration except to install VMware Tools.

After you start the VM the CPU host shows inactive (12 MHz), but he's slowly climbing 10% per day (240 MHz per day) until she reaches about 95%, while the virtual machine itself becomes unresponsive, however said ESXi virtual machine still works fine.  At each stage the VM reports always that it is inactive.  Restart the virtual machine makes the host CPU to idle (12 MHz) and the slow rise begins again.

Uptime of the virtual machine:

root@nas:~ # uptime
 02:22am  up 1 day  2:28,  1 user,  load average: 0.00, 0.00, 0.00

The esxtop display:

 3:22:44pm up 1 day  2:58, 496 worlds, 1 VMs, 1 vCPUs; CPU load average: 0.02, 0.02, 0.02
PCPU USED(%): 1.9 5.4 3.0  11 1.3 0.3 0.3 1.2 AVG: 3.1
PCPU UTIL(%): 3.6 3.3 2.9  10 0.9 0.1 0.9 1.1 AVG: 3.0

      ID      GID NAME             NWLD   %USED    %RUN    %SYS   %WAIT %VMWAIT    %RDY   %IDLE  %OVRLP   %CSTP  %MLMTD  %SWPWT
   36739    27266 vmx                 1    0.03    0.02    0.01   99.99       -    0.00    0.00    0.00    0.00    0.00    0.00
   36741    27266 vmast.36740         1    0.15    0.14    0.00   99.86       -    0.01    0.00    0.00    0.00    0.00    0.00
   36742    27266 vmx-vthread-5       1    0.00    0.00    0.00  100.00       -    0.00    0.00    0.00    0.00    0.00    0.00
   36743    27266 vmx-vthread-6:n     1    0.00    0.00    0.00  100.00       -    0.00    0.00    0.00    0.00    0.00    0.00
   36744    27266 vmx-vthread-7:n     1    0.00    0.00    0.00  100.00       -    0.00    0.00    0.00    0.00    0.00    0.00
   36745    27266 vmx-vthread-8:n     1    0.00    0.00    0.00  100.00       -    0.00    0.00    0.00    0.00    0.00    0.00
   36746    27266 vmx-mks:nas         1    0.02    0.02    0.00   99.99       -    0.00    0.00    0.00    0.00    0.00    0.00
   36747    27266 vmx-svga:nas        1    0.00    0.00    0.00  100.00       -    0.00    0.00    0.00    0.00    0.00    0.00
   36748    27266 vmx-vcpu-0:nas      1   11.80   11.61    0.00   88.38    0.00    0.02   88.46    0.00    0.00    0.00    0.00

In case anyone is wondering, I use Solaris 11.0 because we want to use ZFS with physical RDM to create a NAS for this virtual machine.  Unfortunately, Solaris 11.1 (and above) + physical RDM = purple ESXi screen (see Bug report: 11.1 Solaris + RDM = screen ESXi 5.1 violet).  Apparently, this problem was supposed to be fixed in ESXi 5.5 but still there in ESXi 6.0U1.  I tested (physical RDM + ESXi 6.0U1 + 11.1 Solaris) and (ESXi 6.0U1 11.3 Solaris + physical RDM).  The two combinations result in purple screen.

It is interesting however, Solaris 11.1 (and above) without physical RDMs does NOT suffer from the slow rise of above host CPU utilization.  So, either I cope with a rise in CPU host weird or purple screens :-(

In case anyone has the same problem, I solved this superuser.com class.

http://superuser.com/questions/1024292/ESXi-6-0-U1-Solaris-11-0-VM-host-CPU-high-slowly-climbing-but-VM-idle

In summary, the root cause was a storm of interruption in my Solaris 11.0 VM due to an incompatibility between ESXi and Solaris 11.0 interrupt timing mode.  Add the following line to/etc/System on the Solaris VM solved the problem.

Set pcplusmp:apic_timer_preferred_mode = 0x0

Tags: VMware

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    Does anyone have an explanation for this behavior or a solution to the problem?

    Hey,.

    If you have installed Windows recovery disk Toshiba but still high CPU usage? Hmm that's strange because this image is tested by Toshiba

    Have you installed or uninstalled any software or tools?
    I uninstall the current antivirus and disable some start up programs you n t need in msconfig. Usually, this should work.

  • Tecra M2 - stop hard on high CPU (turns off with no BSOD)

    Experienced stops consistent when the CPU is running at full during a little while.
    -J' mean 'stops' complete power cut with no blue screen of death where all is lost and the computer must be restarted manually.
    -by "high CPU", I mean when the processor locks to full use such that when you insert a column in a big Excel sheet with errors or if you want a large number of files and you open a video from the network or when you run a registry scan and antivirus analysis at the same time.

    The problem took place regularly for a few months and I can now make a case with greater predictability. Using the hardware monitor suite 'Everest', it seems that the problem occurs when the temperature of the CPU is located at 99 for more than a minute or more.

    This happens with some, but never when batteries run - then attempts to force the error, it will not be stopped if the power cable is released just before the drop point.

    In the cases of the problem, it seems to be a small error message appearing only a fraction of a second before the death of the computer.

    Each reference forum and help that I read would suggest the problem is related material and that the chip or the motherboard is overheating and need replacement. While the laptop is almost 18 months old, I bought a new ' everything except the screen and HDD "earlier this year, and was not prepared to accept the explanation without more tests.

    Kantonix Linux works very well and the CD starts seems to tax the processor as much as the same events that kill for me under XP.

    A few weeks back, I installed Windows XP on a second HARD drive in the Bay of hotswappable and noted the installation seems to work pretty hot computer and he died during the process. It has experienced no difficulties for while but, a few days after moving the HARD drive reinstalled in the primary position and after you have reinstalled a lot a lot of applications, the error started happening again.

    Last night I caught a few fractions of a second before the death, the pulling power and stop the process and allow me to see the error message (as mentioned above):

    -first message came from "TOSHIBA Power Saver" saying "a fatal error occurred at x 06" (not sure about the last bit) ".

    -second message was "THotkey.exe' saying 'could not load powrprof.dll.

    -monitoring of several hundred cases of the second message.

    Because of the error messages, I was not able to get a print screen.

    Solutions or even on ideas that would be very appreciated!

    Post edited by: DC-financial

    Hello

    According to your explanations and the information in your ad, I think that the problem is related to the software.
    You wrote something about energy saving. This Toshiba utility controls the speed of the CPU and the use of cooling modules.
    I think that this request could be responsible by the judgments. Try reinstalling this utility.
    In addition, check the configuration of the unique power plans. If you work only with battery energy saver using another mode of power supply as working on AC.
    I think you could check these consumption patterns and configure it.

    Verification of the cooling module is also not a bad idea. Maybe fans cannot work properly because of the dust and debris inside the books.
    I use the vacuum cleaner to clean the fans. CA? s an easy way to make it free of dust.
    But if you get it, you must be careful.

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