[Bug 1889059] Re: [Ubuntu 20.04] zlib on s390x may produce incomplete raw (but not gzip/zlib) streams

Thu Aug 20 00:00:50 UTC 2020

Hi, is it correct to say that fixing this bug and bug 1882494 just
requires updating the patch we have to the current state of the
https://github.com/madler/zlib/pull/410 pull request? If so, the package
that is currently building at
https://launchpad.net/~mwhudson/+archive/ubuntu/devirt/+packages?field.name_filter=zlib
should have the fix and would be worth testing.

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Title:
  [Ubuntu 20.04] zlib on s390x may produce incomplete raw (but not
  gzip/zlib) streams

Status in Ubuntu on IBM z Systems:
  New
Status in zlib package in Ubuntu:
  New
Status in zlib source package in Focal:
  New
Status in zlib source package in Groovy:
  New

Bug description:
  zlib on s390x may produce incomplete raw (but not gzip/zlib) streams

  ---uname output---
  Linux t35lp56.lnxne.boe 5.8.0-20200703.rc3.git0.52a479d42203.300.fc31.s390x #1 SMP Fri Jul 3 00:46:20 CEST 2020 s390x s390x s390x GNU/Linux

  Machine Type = z15 

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

  ---Steps to Reproduce---
   Create a raw (negative windowBits value) stream with zlib. EOBS might be missing or truncated.

  This affects all distro levels that contain hardware acceleration
  (DFLTCC) patch. I've attached the preliminary fix.

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