[Varnish] #848: varnishlog -r seems broken

[Varnish]

#848: varnishlog -r seems broken
--------------------+-------------------------------------------------------
 Reporter:  perbu   |       Owner:                 
     Type:  defect  |      Status:  new            
 Priority:  normal  |   Milestone:  Varnish 3.0 dev
Component:  build   |     Version:  trunk          
 Severity:  normal  |    Keywords:  varnishlog     
--------------------+-------------------------------------------------------
Description changed by perbu:

Old description:

> Created a log file like this: ./varnishlog -w /tmp/vlog
>
> Waiting a few seconds and breaking (^C).
>
> Then I try to read the file like this: ./varnishlog -r /tmp/vlog
>
> varnishlog then gives no output and returns with a exit code of 0.
>
> Strace gives some hints that something is wrong:
>
> (..)
> open("/tmp/vlog", O_RDONLY)             = 3
> uname({sys="Linux", node="odd", ...})   = 0
>
> What the hell is this:
> open("/opt/varnish/var/varnish/odd/_.vsm", O_RDONLY) = 4
> fstat(4, {st_mode=S_IFREG|0644, st_size=84934656, ...}) = 0
> read(4,
> "6\332y\371\200\0\1\0#\330?M\0\0\0\0\277\23\0\0\300\23\0\0\0\0\20\5\0\0\0\0"...,
> 65664) = 65664
> mmap(NULL, 84934656, PROT_READ, MAP_SHARED, 4, 0) = 0x7fc57f055000
> read(3, "\35\0\0)\f\0\0\0", 8)          = 8
> read(3, "66.249.72.243 40136 773308670\0\0\0", 32) = 32
> exit_group(0)                           = ?
>

> I have a log file that I can send to someone. It does however, contain
> session data so I won't upload it.

New description:

 Created a log file like this: ./varnishlog -w /tmp/vlog

 Waiting a few seconds and breaking (^C).

 Then I try to read the file like this: ./varnishlog -r /tmp/vlog

 varnishlog then gives no output and returns with a exit code of 0.

 Strace gives some hints that something is wrong:
 {{{
 (..)
 open("/tmp/vlog", O_RDONLY)             = 3
 uname({sys="Linux", node="odd", ...})   = 0
 }}}
 What the hell is this:
 {{{
 open("/opt/varnish/var/varnish/odd/_.vsm", O_RDONLY) = 4
 fstat(4, {st_mode=S_IFREG|0644, st_size=84934656, ...}) = 0
 read(4,
 "6\332y\371\200\0\1\0#\330?M\0\0\0\0\277\23\0\0\300\23\0\0\0\0\20\5\0\0\0\0"...,
 65664) = 65664
 mmap(NULL, 84934656, PROT_READ, MAP_SHARED, 4, 0) = 0x7fc57f055000
 read(3, "\35\0\0)\f\0\0\0", 8)          = 8
 read(3, "66.249.72.243 40136 773308670\0\0\0", 32) = 32
 exit_group(0)                           = ?
 }}}

 I have a log file that I can send to someone. It does however, contain
 session data so I won't upload it.

--

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Ticket URL: <http://www.varnish-cache.org/trac/ticket/848#comment:1>
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