[Pkg-salt-team] Bug#928337: salt: salt-minion falls into endless loop after upgrade from stretch to buster and fills all the free space on disk with stacktraces into log files

[Tomas Lamr]

Package: salt-minion
Version: 2018.3.4~git20180207+dfsg1-1
Severity: important
File: salt

Dear Maintainer,

   * What led up to the situation?
   
   Just upgrade from stretch do buster. It happens when minion id has 16
   chars or if (in our case) any machine dns hostname is 16chars long
   
   * What exactly did you do (or not do) that was effective (or
     ineffective)?

   I patched the _compat.py directly as shown here https://github.com/saltstack/salt/pull/51931
   The upstream git project has the fix, but it is missing in debian
   package.

   * What was the outcome of this action?
   
   Applying the oneline fix made it work.
   
   * What outcome did you expect instead?

   I expected that upgrade from strech to buster won't broke my remote
   server. 

Thanks a lot for taking a look into this,
Tomas

-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-4-amd64 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages salt-minion depends on:
ii  bsdmainutils     11.1.2+b1
ii  dctrl-tools      2.24-3
ii  lsb-base         10.2019031300
ii  python3          3.7.2-1
ii  python3-crypto   2.6.1-9+b1
ii  python3-systemd  234-2+b1
ii  python3-zmq      17.1.2-2
ii  salt-common      2018.3.4~git20180207+dfsg1-1

Versions of packages salt-minion recommends:
ii  debconf-utils  1.5.71
ii  dmidecode      3.2-1
ii  e2fsprogs      1.44.5-1
pn  sfdisk         <none>

Versions of packages salt-minion suggests:
pn  python3-augeas  <none>

-- Configuration Files:
/etc/salt/minion changed [not included]

-- no debconf information