Document limitation for huge number of values in LDAP fields

Gathered information:

• The crash comes from the call {eval var=$attribute.input} in simpleplugin_section.tpl
• In the case of this huge group, the string in this eval is huge
• A clean solution would be to avoid passing this string to eval and attributes to put HTML code instead of smarty code in there.
• The fact that it is smarty code is used for renderAcl
• It is also used for html_options smarty function
• From what I see there is no other use

I was able to solve my issue by setting

; default value * 100
pcre.backtrack_limit=10000000

in php.ini

Here are a few solution ideas:

• ini_set pcre.backtrack_limit to a higher value when loading the app so that huge groups can be displayed
• find a way to send smaller templates to Smarty? probably not a trivial fix
• Catch the PHP exception from smarty and trigger some special processing when the group is too big (friendly error message, etc)