[Bug 1813888] Re: [Ubuntu] lsqeth core dumps when called from sosreport

[Dimitri John Ledkov]

** Description changed:

  ---Problem Description---
- In the zCX (Open Containers for z/OS), we run in an environment where we have no eth devices defined and therefore no /sys/bus/ccwgroup exists.  We are experiencing intermittent problems with a segmentation fault in the lsqeth program.
+ We run in an environment where we have no eth devices defined and therefore no /sys/bus/ccwgroup exists.  We are experiencing intermittent problems with a segmentation fault in the lsqeth program.
  
  In particular when called from sosreport it consistently fails  but if
  invoking directly from the command line, it most likely does not cause
  an error.
  
  We found out that the logic of lsqeth from s390-tools always expect the
  directory '/sys/bus/ccwgroup/drivers/qeth/'  to be existed.  And it
  doesn't handle the scenario if the directory doesn't exist and causes
  the core dump in our case.
  
  IBM willl provide an upstream patch for s390tools once available.
  
  This package upgrade need to released by Bionic as soon as possible.
  
  ---uname output---
  4.15.0-42-generic
-  
- Machine Type = system Z 
-  
+ 
+ Machine Type = system Z
+ 
  ---Debugger---
  A debugger is not configured
-  
+ 
  ---Steps to Reproduce---
-  1. run in an environment with no eth devices defined and therefore no /sys/bus/ccwgroup exists. 
+  1. run in an environment with no eth devices defined and therefore no /sys/bus/ccwgroup exists.
  2. timeout 10 lsqeth

** Information type changed from Private to Public

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https://bugs.launchpad.net/bugs/1813888

Title:
  [Ubuntu] lsqeth core dumps when called from sosreport

Status in Ubuntu on IBM z Systems:
  In Progress
Status in s390-tools package in Ubuntu:
  Fix Released
Status in s390-tools source package in Bionic:
  New
Status in s390-tools source package in Cosmic:
  New

Bug description:
  ---Problem Description---
  We run in an environment where we have no eth devices defined and therefore no /sys/bus/ccwgroup exists.  We are experiencing intermittent problems with a segmentation fault in the lsqeth program.

  In particular when called from sosreport it consistently fails  but if
  invoking directly from the command line, it most likely does not cause
  an error.

  We found out that the logic of lsqeth from s390-tools always expect
  the directory '/sys/bus/ccwgroup/drivers/qeth/'  to be existed.  And
  it doesn't handle the scenario if the directory doesn't exist and
  causes the core dump in our case.

  IBM willl provide an upstream patch for s390tools once available.

  This package upgrade need to released by Bionic as soon as possible.

  ---uname output---
  4.15.0-42-generic

  Machine Type = system Z

  ---Debugger---
  A debugger is not configured

  ---Steps to Reproduce---
   1. run in an environment with no eth devices defined and therefore no /sys/bus/ccwgroup exists.
  2. timeout 10 lsqeth

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