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Application suffers an unexpected timeout with specific kernel versions.

This document (7023997) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Server 11 (SP4)
SUSE Linux Enterprise Server 12 (GA and Service Pack 1-4)
SUSE Linux Enterprise Server 15 (GA and Service Pack 1)

Situation

It was found that there is a potential issue in the following Kernel versions:

SUSE Linux Enterprise Server 11

   SP4 - 3.0.101-108.95.2

SUSE Linux Enterprise Server 12

    SP1 - 3.12.74-60.64.115
    SP2 - 4.4.121-92.114
    SP3 - 4.4.180-94.97
    SP4 - 4.12.14-95.19.1

SUSE Linux Enterprise Server 15

              4.12.14-150.22.1
    SP1 - 4.12.14-197.4.1

If the following Symptoms show up, your system could be affected:

The application suffers an unexpected timeout. Further investigation shows that a big amount of data was sent and got stuck.
So far this has been seen on SAP application but it could also affected other processes as well.

For details on the SAP Application please see:
https://launchpad.support.sap.com/#/notes/2812427

Resolution

A Maintenance Update is out for the following Kernel:

SUSE Linux Enterprise Server  11

  SP4 - 3.0.101-108.98.1


SUSE Linux Enterprise Server  12

  SP1 - 3.12.74-60.64.118.1
  SP2 - 4.4.121-92.117
  SP3 - 4.4.180-94.100.1
  SP4 - 4.12.14-95.24.1


SUSE Linux Enterprise Server 15

           4.12.14-150.27.1
  SP1 - 4.12.14-197.10.1


For any other kernel,  downgrade to the previous kernel and apply the workaround described in:

 https://www.suse.com/support/kb/doc/?id=7023928
 



Disclaimer

This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7023997
  • Creation Date:10-JUL-19
  • Modified Date:24-JUL-19
    • NovellSUSE Linux Enterprise Server for SAP Applications
    • SUSESUSE Linux Enterprise Server
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