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Thread: NOHZ: local_softirq_pending 100

  1. #1
    Join Date
    Jun 2012
    Location
    Cuba
    Posts
    26

    Default NOHZ: local_softirq_pending 100

    I have a two node Proxmox VE (2.2-26/c1614c8c) cluster, recently I'm receiving this message from one of two nodes: NOHZ: local_softirq_pending 100.
    That node has a Core i3 CPU and a RTL8111/8168B PCI Express Gigabit Ethernet controller. As far as I know, there is no malfunction at all, but I'm worried about this, I have read forum threads concerning this issue but no proper answers or solutions.

    Best regards
    Last edited by 103; 11-13-2012 at 10:35 PM.

  2. #2
    Join Date
    Apr 2012
    Location
    Nebraska, USA
    Posts
    34

    Default Re: NOHZ: local_softirq_pending 100

    Found the following repeating periodically on the local console NOHZ: Local_Soft_IRQ_Pending 100

    I have had the server up for about month and this started to happen in the last 5 days and since the most recent updates to the the latest build of 2.2.

    I did some googling and it seems to point to a bug in the Red Hat kernel 6.2.32 branch. There was no consensus as to was this a serious problem but it is a bug in OpenVZ. The following url had a good explanation http://www.kubuntuforums.net/showthr...rq_pending-100. Seems like this was a simple code fix.

    Thanks for the great product. The community forum is really super and I really believe in the Support Subscription and will be getting one in the next day or so so that this great product can keep going. This is a totally awesome product and I have ESXi and have nearly a 100 virtual machines running but ESXi can't do the CT. What they offer for feature sets totally rocks.

    Can't wait to see what the 2.3 will bring.

  3. #3
    Join Date
    Dec 2008
    Location
    Budapest, Hungary
    Posts
    260

    Default Re: NOHZ: local_softirq_pending 100

    NOHZ: local_softirq_pending 100

    These messages have started to appear on all of our cluster nodes, mainly during vzdump backups. We are running PVE 2.3 with the latest kernel Linux proxmox 2.6.32-19-pve.
    Last edited by gkovacs; 05-10-2013 at 06:56 PM.

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