[Bug 1971959] Re: [UBUNTU 22.04] dbginfo.sh: stabilization of data collection

[Launchpad Bug Tracker]

This bug was fixed in the package s390-tools - 2.20.0-0ubuntu3.1

---------------
s390-tools (2.20.0-0ubuntu3.1) jammy; urgency=medium

  * Fix chreipl-fcp-mpath (LP: #1971993)
    - Move chreipl-fcp-mpath* from /lib/udev/rules.d to /lib/udev.
    - d/control:
      + Build-Depend on bsdextrautils for hexdump
      + Add multiple explicit Depends on udev
      + s390-tools-chreipl-fcp-mpath: drop unnecessary Depends on lvm2
    - No longer change attributes of chreipl-fcp-mpath-common.sh to 755,
      since only the input script '.in' has a she-bang, but not the '.sh'
      anymore (was done with commit c2f8988).
    - Add d/p/0d15a07-chreipl-fcp-mpath-bundle-a-pre-cooked-man-page.patch
      to bundle a pre-cooked version of the man page for chreipl-fcp-mpath
      Required minor context adjustment for CHANGELOG.md hunk
      and changes in d/rules.
    - Add missing README.md to s390-tools-chreipl-fcp-mpath.doc
      (and with that also the README.md for genprotimg to s390-tools.docs).
  * Add new CPU-MF Counters for new IBM Z hardware (LP: #1960119) by:
    - d/p/2515832-util_arch-Add-IBM-z16-as-known-machine.patch and
    - d/p/cce5f51-cpumf-lscpumf-Add-IBM-z16-extended-counter-set-def.patch
  * Add exploitation support of new IBM Z crypto hardware (LP: #1959548) with:
    - d/p/b16a6d4f-lszcrypt-add-CEX8S-support.patch
    - d/p/bcbb6fca-zcryptstats-add-CEX8-support.patch
    - d/p/4382901d-lszcrypt-show-AP-bus-msg-size-limit-capability.patch
    - d/p/27dce331-lszcrypt-add-support-for-checkstop-state.patch
    - d/p/a29b3c89-lszcrypt-new-options-to-show-only-accel-cca-or-ep11-.patch
    - d/p/a8b0d7ac-lszcrypt-new-options-to-filter-cards-queues-only.patch
    - d/p/46fd42af-lszcrypt-new-option-to-show-the-serial-numbers-of-CC.patch
  * Stabilization of data collection in dbginfo.sh script (LP: #1971959)
    by adding several upstream patches:
    - d/p/*-dbginfo.sh-*.patch
    - whereas one needed minor context adjutment for the CHANGELOG.md hunk:
      d/p/50a4740-dbginfo.sh-replace-which-by-builtin-command-type-for.patch
  * Fix cmsfs-fuse mount failure due to unknown option '-o hard_remove'
    (LP: #1978323) with:
    d/p/0981df6-cmsfs-fuse-fix-enabling-of-hard_remove-option.patch

 -- Frank Heimes <frank.heimes at canonical.com>  Fri, 20 May 2022 13:48:34
+0200

** Changed in: s390-tools (Ubuntu Jammy)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1971959

Title:
  [UBUNTU 22.04] dbginfo.sh: stabilization of data collection

Status in Ubuntu on IBM z Systems:
  Fix Committed
Status in s390-tools package in Ubuntu:
  Fix Released
Status in s390-tools source package in Jammy:
  Fix Released
Status in s390-tools source package in Kinetic:
  Fix Released

Bug description:
  SRU Justification:
  ==================

  [Impact]

   * The s390x-specific dbginfo.sh script, used to collect runtime,
     configuration and trace information for debugging Linux on IBM Z,
     has stabilization issues while collecting data.

   * Script hangups are possible on single commands,

   * potentially missing data collection on error

   * and overwrites of buffers by diag commands.

  [Test Plan]

   * Prepare an IBM zSystems or LinuxONE system
     (ideally an LPAR as well as a z/VM guest)
     with an Ubuntu 22.04 system.

   * The s390-tools package is mandatory and always installed,
     but needs to be replaced with an updated/fixed version -
     pick the version from the PPA that is mentioned below.

   * Execute dbginfo.sh (as root or with sudo).

   * Monitor the output and verify if all 18 steps are completed,
     without any crashes or hangs.

   * Inspect the size and content of the result file:
     /tmp/DBGINFO-*.tgz

  [Where problems could occur]

   * The script might no run on older generations anymore.

   * Some of the things that are gathered might not be
     properly picked (like z/VM data on LPAR).

   * If a step fails (like in the past), no summarized
     output might be generated.

  __________

  Description:   dbginfo.sh: stabilization of data collection
  Symptom:        - script hangup possible on single commands
                  - missing data collection on error
                  - overwrite of buffers by diag commands
  Problem:       hangup and loss of data collection
  Solution:      rework code regarding
                  - add timeout function
                  - remove problematic commands
                  - include handling improvements
  Component:     s390-tools

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