SUSE-RU-2020:0695-1: moderate: Recommended update for md_monitor

[sle-updates at lists.suse.com]

   SUSE Recommended Update: Recommended update for md_monitor
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Announcement ID:    SUSE-RU-2020:0695-1
Rating:             moderate
References:         #1095141 #1116560 #1140006 #1157754 
Affected Products:
                    SUSE Linux Enterprise Server 12-SP5
                    SUSE Linux Enterprise Server 12-SP4
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   An update that has four recommended fixes can now be
   installed.

Description:

   This update for md_monitor fixes the following issues:

   - Use pselect() instead of select(). (bsc#1095141) The reason that
     pselect() is needed is that if one wants to wait for either a signal or
     for a file descriptor to become ready, then an atomic test is needed to
     prevent race conditions.

   - Permanently store 'md_side' for each device and skip devices with valid
     md_slot in reset_mirror(). (bsc#1116560) A device might be removed or
     re-added, but in either case the side at which this happens should not
     change. The md_slot entry needs to be set to '-1' from the MD RAID10
     code to indicate that a failed device has been correctly removed.

   - Fix potential memleak in discover_md_components(). (bsc#1157754)

   - Don't omit trailing dots in display_md_status. (bsc#1140006)
     display_md_status() and display_io_status() end output at the index of
     the last child of the md array they encounter while walking the sibling
     list. In the past this could have lead to missing trailing dots (".") if
     a disk at the end of the array was in removed.


Patch Instructions:

   To install this SUSE Recommended Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server 12-SP5:

      zypper in -t patch SUSE-SLE-SERVER-12-SP5-2020-695=1

   - SUSE Linux Enterprise Server 12-SP4:

      zypper in -t patch SUSE-SLE-SERVER-12-SP4-2020-695=1



Package List:

   - SUSE Linux Enterprise Server 12-SP5 (s390x):

      md_monitor-6.6-7.10.1
      md_monitor-debuginfo-6.6-7.10.1
      md_monitor-debugsource-6.6-7.10.1

   - SUSE Linux Enterprise Server 12-SP4 (s390x):

      md_monitor-6.6-7.10.1
      md_monitor-debuginfo-6.6-7.10.1
      md_monitor-debugsource-6.6-7.10.1


References:

   https://bugzilla.suse.com/1095141
   https://bugzilla.suse.com/1116560
   https://bugzilla.suse.com/1140006
   https://bugzilla.suse.com/1157754