[Varnish] #878: Varnish child dies with segfault when loading a VCL importing std vmod

[Varnish]

#878: Varnish child dies with segfault when loading a VCL importing std vmod
-------------------------------+--------------------------------------------
 Reporter:  tmagnien           |        Type:  defect  
   Status:  new                |    Priority:  normal  
Milestone:                     |   Component:  varnishd
  Version:  trunk              |    Severity:  normal  
 Keywords:  std vmod segfault  |  
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 Hi.

 With a fresh compilation of trunk, if I take the default VCL file and just
 add "import std;" statement, a vcl.load of that VCL file causes the
 varnish child to segfault. The segfault does not occur when starting
 varnish but only if I do an explicit vcl.load of the file through CLI.

 From my investigations, it seems that the segfault occurs in the VGC_Init
 function, at the time Vmod_Func_std._init(&vmod_priv_std, &VCL_conf) is
 called.

 I can provide strace or gdb backtrace, if needed, but this is easy to
 reproduce.

 When investigating, I found that the init function of a vmod is called
 when the VCL is loaded. I think it should be called only when the VCL is
 "used", not when it's "loaded".

 Regards,
 Thierry

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Ticket URL: <http://www.varnish-cache.org/trac/ticket/878>
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