linuxdcpp-team team mailing list archive

[maksis <1656049@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1656050 ***
    https://bugs.launchpad.net/bugs/1656050

Public bug reported:

After updating zlib to version 1.2.10, transfers randomly fail because
of compression errors. Such errors happening on uploader's side won't
reported anywhere, the upload just gets disconnected.

Based on some debugging with AirDC++, the actual location where the
error happens in zlib is
https://github.com/madler/zlib/blob/master/deflate.c#L595

I'm not sure whether that's a bug in zlib or something intended as there
are also breaking changes in version 1.2.10:
https://github.com/madler/zlib/issues/190 (avail_out is not originally
zero when the call is made)

Setting compression level at
https://sourceforge.net/p/dcplusplus/code/ci/default/tree/dcpp/ZUtils.cpp#l59
to a non-zero value seems to help with avoiding the issue.

** Affects: dcplusplus
     Importance: Undecided
         Status: New

** This bug has been marked a duplicate of bug 1656050
   Compression errors with zlib 1.2.10

-- 
You received this bug notification because you are a member of
Dcplusplus-team, which is subscribed to DC++.
https://bugs.launchpad.net/bugs/1656049

Title:
  Compression errors with zlib 1.2.10

Status in DC++:
  New

Bug description:
  After updating zlib to version 1.2.10, transfers randomly fail because
  of compression errors. Such errors happening on uploader's side won't
  reported anywhere, the upload just gets disconnected.

  Based on some debugging with AirDC++, the actual location where the
  error happens in zlib is
  https://github.com/madler/zlib/blob/master/deflate.c#L595

  I'm not sure whether that's a bug in zlib or something intended as
  there are also breaking changes in version 1.2.10:
  https://github.com/madler/zlib/issues/190 (avail_out is not originally
  zero when the call is made)

  Setting compression level at
  https://sourceforge.net/p/dcplusplus/code/ci/default/tree/dcpp/ZUtils.cpp#l59
  to a non-zero value seems to help with avoiding the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/dcplusplus/+bug/1656049/+subscriptions