[Varnish] #1781: Error with gzip content on Varnish4

[Varnish]

#1781: Error with gzip content on Varnish4
--------------------------+----------------------
 Reporter:  llavaud       |       Type:  defect
   Status:  new           |   Priority:  normal
Milestone:                |  Component:  varnishd
  Version:  4.1.0-TP1     |   Severity:  major
 Keywords:  gzip corrupt  |
--------------------------+----------------------
 Hello,

 i have a problem with some gzip content, i request an url on my Varnish3
 and i got a correct gzip response but if i do the same request on my
 Varnish4 server i got a corrupt gzip response.

 - request on the Varnish3 (3.0.5 on debian wheezy):

 {{{
 curl -H 'Accept-Encoding: gzip' -H 'Host: www.parents.fr'
 http://10.114.3.12/Beaute-Forme/Beaute --silent > /tmp/content.gz
 }}}

 {{{
 stat /tmp/content.gz
   File: ‘/tmp/content.gz’
   Size: 11804           Blocks: 24         IO Block: 4096   regular file
 Device: 801h/2049d      Inode: 175099      Links: 1
 Access: (0664/-rw-rw-r--)  Uid: ( 1000/laurentl)   Gid: ( 1000/laurentl)
 Access: 2015-09-01 18:25:01.632840870 +0200
 Modify: 2015-09-01 18:25:33.733209689 +0200
 Change: 2015-09-01 18:25:33.733209689 +0200
  Birth: -
 }}}

 {{{
 gunzip -t /tmp/content.gz
 }}}

 - request on the Varnish4 (4.1.0-TP1 on debian wheezy):

 {{{
 curl -H 'Accept-Encoding: gzip' -H 'Host: www.parents.fr'
 http://10.114.3.14/Beaute-Forme/Beaute --silent > /tmp/content2.gz
 }}}

 file is smaller:
 {{{
 stat /tmp/content2.gz
   File: ‘/tmp/content2.gz’
   Size: 11794           Blocks: 24         IO Block: 4096   regular file
 Device: 801h/2049d      Inode: 175055      Links: 1
 Access: (0664/-rw-rw-r--)  Uid: ( 1000/laurentl)   Gid: ( 1000/laurentl)
 Access: 2015-09-01 18:26:38.481953633 +0200
 Modify: 2015-09-01 18:26:38.509953954 +0200
 Change: 2015-09-01 18:26:38.509953954 +0200
  Birth: -
 }}}

 and corrupt:
 {{{
 gunzip -t /tmp/content2.gz

 gzip: /tmp/content2.gz: invalid compressed data--crc error

 gzip: /tmp/content2.gz: invalid compressed data--length error
 }}}

 i have attached the full varnishlog.

 thanks in advance.

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1781>
Varnish <https://varnish-cache.org/>
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