Results 1 to 3 of 3

Thread: Problems with CPU usage after latest SP4 kernel update

  1. #1

    Problems with CPU usage after latest SP4 kernel update

    I've found that after updating our zLinux (s390x) servers with the latest kernel for SuSE 11 SP4 (kernel-default-3.0.101-77.1), a couple of applications start hanging and the CPU races out of control.

    It's caused us to roll back our update of those servers to one of the previous kernels, kernel-default-3.0.101-68.1 or 71.1. I will try and gather more information via strace and lost when I can, but the issue seems to happen during disk accesses, most notably when I attempt to run zipl, as the process attempts to write the new boot loader config to DASD.

    Has anyone else had a similar issue with SP4 on Z? Right now we don't have the luxury of updating our existing servers to SuSE 12 due to stringent requirements for introducing major upgrades to our operating system.

  2. #2

    Re: Problems with CPU usage after latest SP4 kernel update


    It appears that in the past few days you have not received a response to your
    posting. That concerns us, and has triggered this automated reply.

    These forums are peer-to-peer, best effort, volunteer run and that if your issue
    is urgent or not getting a response, you might try one of the following options:

    - Visit and search the knowledgebase and/or check all
    the other support options available.
    - Open a service request:
    - You could also try posting your message again. Make sure it is posted in the
    correct newsgroup. (

    Be sure to read the forum FAQ about what to expect in the way of responses:

    If this is a reply to a duplicate posting or otherwise posted in error, please
    ignore and accept our apologies and rest assured we will issue a stern reprimand
    to our posting bot..

    Good luck!

    Your SUSE Forums Team

  3. #3

    Re: Problems with CPU usage after latest SP4 kernel update

    It turns out that the latest kernel update for SLES on Z seems to fix the problem we were having. I'll read the errata to find out what was changed (or put back!)


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts