i'm seeing this same issue on my install of piwik 1.12.
i'm running php 5.4.15
centos 6.4
msg:
[error] 27480#0: *42927 FastCGI sent in stderr: "PHP message: PHP Fatal error: Nesting level too deep - recursive dependency? in /mysite/piwik/core/View.php on line 37" while reading response header from upstream, client: xxx.xxx.xx.xxx, server: mysite.com, request: "POST /index.php?date=2013-05-03,2013-06-01&module=Referers&action=getSearchEngines&widget=1&viewDataTable=table&idSite=1&period=range HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "mysite.com", referrer: "http://mysite.com/index.php?module=CoreHome&action=index&idSite=1&period=range&date=previous30"
i'm running php 5.4.15
centos 6.4
msg:
[error] 27480#0: *42927 FastCGI sent in stderr: "PHP message: PHP Fatal error: Nesting level too deep - recursive dependency? in /mysite/piwik/core/View.php on line 37" while reading response header from upstream, client: xxx.xxx.xx.xxx, server: mysite.com, request: "POST /index.php?date=2013-05-03,2013-06-01&module=Referers&action=getSearchEngines&widget=1&viewDataTable=table&idSite=1&period=range HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "mysite.com", referrer: "http://mysite.com/index.php?module=CoreHome&action=index&idSite=1&period=range&date=previous30"