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Fatal resource shortage: privvmpages [message #8945]

Mon, 11 December 2006 18:39

marsvin
Messages: 8
Registered: December 2006

Junior Member

Hi all,

I'm a bit of a newbie getting started for the first time installing OpenVZ in a test environment.

First off my machine is a dual proc dual core Operton (AMD64) platform with 4GB of ram. My operating system is Debian Sarge 3.1.
I haven't installed anything other than the OS, ssh and OpenVZ so far so this is as clean an install as I can get. OpenVZ and its kernel were installed using apt. This is the one I'm using now:

me@server:~$ uname -a
Linux server 2.6.9-023stab032.1-ovz-amd64-smp #1 SMP Fri Oct 27 13:41:52 CEST 2006 x86_64 GNU/Linux

To install the virtual machine I followed this tutorial: http://wiki.openvz.org/Installation_on_Debian
and then downloaded the Debian64 template from here: http://openvz.org/download/template/cache/

Oh I used vps.basic.conf as the configuration. I did find a 64 bit smp config here http://download.openvz.org/kernel/devel/026test015.1/configs / but after I installed it and tried to start the virtual machine I ended up with 2 pages of errors. (if needed I can try again and post the errors here.)

With the default config installation was a breeze but when I finished and rebooted again, right before the login prompt showed up I got this error message:

Dec 11 19:09:51 localhost kernel: Fatal resource shortage: privvmpages, UB 101.

Although there is nothing installed on the virtual machine yet (or on the base OS for that matter.)

I'm assuming this won't make my system any more stable so I'd like to find out what's causing this problem and how to fix it but I'm not sure where to start.

I did find several posts about this error on this board but they all seemed to indicate mis-use of memory which shouldn't be a problem in my system (yet.)

Any thoughts would be much appreciated and if you got here thanks for reading this rather long post Wink

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Re: Fatal resource shortage: privvmpages [message #8946 is a reply to message #8945]

Mon, 11 December 2006 19:18

rickb
Messages: 368
Registered: October 2006

Senior Member

First, check what privvmpages is set to currently:

#cat /proc/user_beancounters

under the VEID, you will see a lines like this:

889489: kmemsize 1420887 2768219 60252800 121278080 0
lockedpages 0 0 550 550 0
privvmpages 8622 18280 500000 750000 0

In this case, privvmpages is set to 500000:750000 and has no failcounts. Your probably will have failcounts greater then 0. To raise privvmpages, use this command:

vzctl set VEID --privvmpages XXXXX:YYYYY --save

This will set VEID privvmpages to XXXXX:YYYYY. You can use mine to at least get your VE going and then tune them later.

If this doesn't help, use these steps so someone can help you with one reply:

0) reboot your hardware node if possible and no production services (just to clear beancounters)
1) cat /proc/user_beancounters (save it)
2) simulate problem
3) cat /proc/user_beancounters (save it)

Paste the full output of beancounters here!

Rick

-------------
Common Terms I post with: http://wiki.openvz.org/Category:Definitions

UBC. Learn it, love it, live it: http://wiki.openvz.org/Proc/user_beancounters

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Re: Fatal resource shortage: privvmpages [message #8948 is a reply to message #8946]

Mon, 11 December 2006 20:14

marsvin
Messages: 8
Registered: December 2006

Junior Member

Thanks a lot for replying so quickly Smile

The increased vmpages fixed the problem. The error was popping up at hardware boot btw, before I did anything at all, so there was no "before" counter.

I'm seeing a new error pop up though, numproc is listing a failcnt of 1. I have 5 processes currently running in the VPS with maxheld, barrier and limit at 65.

After toying around a bit (logging in with ssh, vim'ing some files and so on) it doesn't seem to increase.

Here's the list at boot.
By the way, is that limit set for physpages, vmguarpages and oomguarpages sane?

Version: 2.5
       uid  resource                     held              maxheld              barrier                limit              failcnt
       101: kmemsize                   445083              2081471              5242880              5592405                    0
            lockedpages                     0                    0                   32                   32                    0
            privvmpages                  1146               146808               500000               750000                    0
            shmpages                        0                   65                 8192                 8192                    0
            dummy                           0                    0                    0                    0                    0
            numproc                         5                   65                   65                   65                    1
            physpages                     485                 1887                    0  9223372036854775807                    0
            vmguarpages                     0                    0                 6144  9223372036854775807                    0
            oomguarpages                  485                 1887                 6144  9223372036854775807                    0
            numtcpsock                      1                    2                   80                   80                    0
            numflock                        1                    2                  100                  110                    0
            numpty                          0                    0                   16                   16                    0
            numsiginfo                      0                    2                  256                  256                    0
            tcpsndbuf                       0                    0               319488               524288                    0
            tcprcvbuf                       0                    0               319488               524288                    0
            othersockbuf                 2344                 3664               132096               336896                    0
            dgramrcvbuf                     0                    0               132096               132096                    0
            numothersock                    1                    4                  120                  120                    0
            dcachesize                      0                    0              1048576              1097728                    0
            numfile                       121                 1105                 2048                 2048                    0
            dummy                           0                    0                    0                    0                    0
            dummy                           0                    0                    0                    0                    0
            dummy                           0                    0                    0                    0                    0
            numiptent                      10                   10                  128                  128                    0

And here it is after some action:

Version: 2.5
       uid  resource                     held              maxheld              barrier                limit              failcnt
       101: kmemsize                   433380              2081471              5242880              5592405                    0
            lockedpages                     0                    0                   32                   32                    0
            privvmpages                  1147               146808               500000               750000                    0
            shmpages                        0                  656                 8192                 8192                    0
            dummy                           0                    0                    0                    0                    0
            numproc                         5                   65                   65                   65                    1
            physpages                     486                 1975                    0  9223372036854775807                    0
            vmguarpages                     0                    0                 6144  9223372036854775807                    0
            oomguarpages                  486                 1975                 6144  9223372036854775807                    0
            numtcpsock                      1                    2                   80                   80                    0
            numflock                        1                    2                  100                  110                    0
            numpty                          0                    1                   16                   16                    0
            numsiginfo                      0                    2                  256                  256                    0
            tcpsndbuf                       0                 9376               319488               524288                    0
            tcprcvbuf                       0                 4392               319488               524288                    0
            othersockbuf                 2344                 7920               132096               336896                    0
            dgramrcvbuf                     0                 8488               132096               132096                    0
            numothersock                    1                    6                  120                  120                    0
            dcachesize                      0                    0              1048576              1097728                    0
            numfile                       119                 1105                 2048                 2048                    0
            dummy                           0                    0                    0                    0                    0
            dummy                           0                    0                    0                    0                    0
            dummy                           0                    0                    0                    0                    0
            numiptent                      10                   10                  128                  128                    0

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