Perl Regex

cipher has asked for the wisdom of the Perl Monks concerning the following question:

Hello, I am new to perl, I am stuck on regex part of parsing a file, help would be appreciated. I am parsing a log file which has log entries per line. I am loading regex match in a scalar.
I am trying to match this data:
some_fields msg="http_decoder: HTTP.Unknown.Tunnelling" some_fields
This message keeps on changing.
Here is my regex:

/msg=\"+((?:([^:,]+):\s|)([^,]+?)\s*(?:\s*,.*?|)))\"+/
[download]

Here is my script:

foreach $message (@logs)
         {
if ($message =~ /msg=\"+((?:([^:,]+):\s|)([^,]+?)\s*(?:\s*,.*?|))\"+/)
+    
                  {
        print $message"\n";
        }

    }
[download]

I tried online regex tools and this matches the string but when using perl it does not show any result.
I also tried adding the global match /g still does not work. Any clue? I tried several combinations it does not work. If I use the regex:
if ($message =~ /^msg/) - It only gives me msg="http_decoder: as output
I want the entire string
msg="http_decoder: HTTP.Unknown.Tunnelling"
I also tried
(/^msg=\"(.*?)\"+) This also gives me msg="http_decoder:

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