I am also experiencing this exact problem. So I followed Kirk's instructions to upgrade to 1.2.11, but just like Kirk, it does not fix the problem for me. The problem persists with cupsys 1.2.11.
$ apt-cache policy cupsys Installed: 1.2.11-2ubuntu1
$ tail -f /var/log/cups/error_log E [09/Jun/2007:16:14:05 +1000] Unable to accept client connection - Too many open files.
I am also experiencing this exact problem. So I followed Kirk's instructions to upgrade to 1.2.11, but just like Kirk, it does not fix the problem for me. The problem persists with cupsys 1.2.11.
$ apt-cache policy cupsys
Installed: 1.2.11-2ubuntu1
$ tail -f /var/log/ cups/error_ log 2007:16: 14:05 +1000] Unable to accept client connection - Too many open files.
E [09/Jun/