[Bug 1553770] [NEW] apt-utils: xz support is gone.

Colin Watson cjwatson at canonical.com
Sun Mar 6 18:11:56 UTC 2016 

Public bug reported:

Stable release update justification:

[Impact] apt-ftparchive fails to produce .xz compressed files with sufficiently large data sets.  This prevents migration of the Ubuntu archive to .xz.
[Test Case] Grab trusty/main/amd64 with debmirror, construct a suitable file list, and ask apt-ftparchive to generate files for this with Packages::Compress set to include xz.  We can easily test this on the Launchpad "dogfood" instance where we do QA of the archive publisher.
[Regression Potential] Confined to lzma/xz compression, which I think is basically just apt-ftparchive, but we should make sure that other compression methods still work there.

Original report follows:

Imported from Debian bug http://bugs.debian.org/751688:

Package: apt-utils
Version: 0.9.15.5
Severity: normal

Dear Maintainer,

Tested with 1.0.4 and reinstalled working 0.9.15.5

Packages::Compress seems to not work anymore with xz compression.

Only . (uncompressed), gzip and bzip2 seems to work, xz now return errors
(see at the bottom).

Same error with Sources::Compress

Christian

$ apt-ftparchive generate apt.conf
 dists/unstable/main/binary-amd64/:E: write, still have 32768 to write but
couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 32768 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)
E: write, still have 4096 to write but couldn't
E: IO to subprocess/file failed - write (0: Success)

E: Sub-process Compress child returned an error code (100)

** Affects: apt (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: apt (Ubuntu Trusty)
     Importance: Undecided
         Status: New

** Affects: apt (Debian)
     Importance: Undecided
         Status: New

** Bug watch added: Debian Bug tracker #751688
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=751688

** Changed in: apt (Debian)
 Remote watch: None => Debian Bug tracker #751688

** Description changed:

  Imported from Debian bug http://bugs.debian.org/751688:
  
- 5
+ Package: apt-utils
+ Version: 0.9.15.5
+ Severity: normal
+ 
+ Dear Maintainer,
+ 
+ Tested with 1.0.4 and reinstalled working 0.9.15.5
+ 
+ Packages::Compress seems to not work anymore with xz compression.
+ 
+ Only . (uncompressed), gzip and bzip2 seems to work, xz now return errors
+ (see at the bottom).
+ 
+ Same error with Sources::Compress
+ 
+ Christian
+ 
+ 
+ $ apt-ftparchive generate apt.conf
+  dists/unstable/main/binary-amd64/:E: write, still have 32768 to write but
+ couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 32768 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ E: write, still have 4096 to write but couldn't
+ E: IO to subprocess/file failed - write (0: Success)
+ 
+ E: Sub-process Compress child returned an error code (100)

** Also affects: apt (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: apt (Ubuntu Precise)
   Importance: Undecided
       Status: New

** No longer affects: apt (Ubuntu Precise)

** Description changed:

+ Stable release update justification:
+ 
+ [Impact] apt-ftparchive fails to produce .xz compressed files with sufficiently large data sets.  This prevents migration of the Ubuntu archive to .xz.
+ [Test Case] Grab trusty/main/amd64 with debmirror, construct a suitable file list, and ask apt-ftparchive to generate files for this with Packages::Compress set to include xz.  We can easily test this on the Launchpad "dogfood" instance where we do QA of the archive publisher.
+ [Regression Potential] Confined to lzma/xz compression, which I think is basically just apt-ftparchive, but we should make sure that other compression methods still work there.
+ 
+ Original report follows:
+ 
  Imported from Debian bug http://bugs.debian.org/751688:
  
  Package: apt-utils
  Version: 0.9.15.5
  Severity: normal
  
  Dear Maintainer,
  
  Tested with 1.0.4 and reinstalled working 0.9.15.5
  
  Packages::Compress seems to not work anymore with xz compression.
  
  Only . (uncompressed), gzip and bzip2 seems to work, xz now return errors
  (see at the bottom).
  
  Same error with Sources::Compress
  
  Christian
  
- 
  $ apt-ftparchive generate apt.conf
-  dists/unstable/main/binary-amd64/:E: write, still have 32768 to write but
+  dists/unstable/main/binary-amd64/:E: write, still have 32768 to write but
  couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 32768 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  
  E: Sub-process Compress child returned an error code (100)

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https://bugs.launchpad.net/bugs/1553770

Title:
  apt-utils: xz support is gone.

Status in apt package in Ubuntu:
  New
Status in apt source package in Trusty:
  New
Status in apt package in Debian:
  New

Bug description:
  Stable release update justification:

  [Impact] apt-ftparchive fails to produce .xz compressed files with sufficiently large data sets.  This prevents migration of the Ubuntu archive to .xz.
  [Test Case] Grab trusty/main/amd64 with debmirror, construct a suitable file list, and ask apt-ftparchive to generate files for this with Packages::Compress set to include xz.  We can easily test this on the Launchpad "dogfood" instance where we do QA of the archive publisher.
  [Regression Potential] Confined to lzma/xz compression, which I think is basically just apt-ftparchive, but we should make sure that other compression methods still work there.

  Original report follows:

  Imported from Debian bug http://bugs.debian.org/751688:

  Package: apt-utils
  Version: 0.9.15.5
  Severity: normal

  Dear Maintainer,

  Tested with 1.0.4 and reinstalled working 0.9.15.5

  Packages::Compress seems to not work anymore with xz compression.

  Only . (uncompressed), gzip and bzip2 seems to work, xz now return errors
  (see at the bottom).

  Same error with Sources::Compress

  Christian

  $ apt-ftparchive generate apt.conf
   dists/unstable/main/binary-amd64/:E: write, still have 32768 to write but
  couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 32768 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)
  E: write, still have 4096 to write but couldn't
  E: IO to subprocess/file failed - write (0: Success)

  E: Sub-process Compress child returned an error code (100)

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