Junos OS

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  • 1.  kernel: Approaching the limit on PV entries

    Posted 09-10-2017 17:07

    Hello,

     

    after installing the latest recommended JunOS for MX240(15.1R6.7), we see alot of these messages in the syslog:

     

    kernel: Approaching the limit on PV entries, consider increasing either the vm.pmap.shpgperproc or the vm.pmap.pv_entry_max tunable.

     

    It seems to have no impact on the services(didnt noticed any yet) - can we just ignore these messages?

     

    Thanks for help in advance!

     

    regards,

    Freemind



  • 2.  RE: kernel: Approaching the limit on PV entries

    Posted 09-11-2017 02:57

    It appears to be a message from the underlying free BSD OS.  I don't find any listings in the Junos PR database for this so it is not a publicly reported harmless message yet.  I would consider opening a JTAC ticket to confirm if this requires a setting change in free BSD or can be ignored.

     

    https://forums.freebsd.org/threads/17786/



  • 3.  RE: kernel: Approaching the limit on PV entries
    Best Answer

    Posted 09-12-2017 05:09

    Hi,

     

    These log messages are non impacting. you can ignore these messages or if you want to supress these messages, you can do so with this command.

     

    set system syslog file messages match "!(Approaching the limit on PV entries)"

     

    HTH