<div>Hello, Every few days, my entire system (Ubuntu Dapper on a Thinkpad T42) crashes. I can't even move the mouse or suspend the computer. Pressing Ctrl+Alt+Backspace or Ctrl+Alt+Delete does nothing. Here is what appears in my /var/log/syslog prior to crash. I constantly get these messages: </div> <blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">Dec 5 22:39:02 localhost /USR/SBIN/CRON[21525]: (root) CMD ( [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -r -0 rm) Dec 5 22:39:05 localhost cupsd: Unable to open log file "/var/log/cups/error_log" - Permission denied Dec 5 22:39:40 localhost last message repeated 91 times Dec 5 22:40:40 localhost last message repeated 183 times Dec 5 22:41:40 localhost last message repeated 156 times Dec 5 22:42:41 localhost last message repeated 156 times Dec 5 22:43:41 localhost last message repeated 156 times</blockquote><div> [and so on, about 50 times...] </div> <blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">Dec 5 23:05:42 localhost last message repeated 156 times Dec 5 23:06:42 localhost last message repeated 156 times Dec 5 23:12:10 localhost syslogd 1.4.1#17ubuntu7: restart. </blockquote> Here are the file permissions in /var/log/cups (though I thought I had changed the owner of error_log to cupsys at some point to try to fix the problem): <blockquote>-rw-r--r-- 1 cupsys lp 2.0K 2006-12-05 23:13 access_log -rw-r--r-- 1 cupsys lp 180 2006-12-05 02:10 access_log.1.gz -rw-r--r-- 1 cupsys lp 183 2006-12-04 03:01 access_log.2.gz -rw-r--r-- 1 cupsys lp 249 2006-12-03 03:17 access_log.3.gz -rw-r--r-- 1 cupsys lp 192 2006-11-30 04:02 access_log.4.gz -rw-r--r-- 1 cupsys lp 189 2006-11-29 20:39 access_log.5.gz -rw-r--r-- 1 cupsys lp 117 2006-11-29 12:31 access_log.6.gz -rw-r--r-- 1 cupsys lp 222 2006-11-27 19:45 access_log.7.gz -rw-r--r-- 1 root lp 1.7M 2006-12-05 23:23 error_log -rw-r--r-- 1 root lp 98K 2006-12-05 12:31 error_log.1.gz -rw-r--r-- 1 root lp 35K 2006-12-04 03:32 error_log.2.gz -rw-r--r-- 1 root lp 80K 2006-12-03 13:05 error_log.3.gz -rw-r--r-- 1 root lp 17K 2006-12-02 02:27 error_log.4.gz -rw-r--r-- 1 root lp 106K 2006-12-01 00:14 error_log.5.gz -rw-r--r-- 1 root lp 73K 2006-11-30 02:03 error_log.6.gz -rw-r--r-- 1 root lp 32K 2006-11-29 12:35 error_log.7.gz -rw-r----- 1 cupsys lpadmin 0 2006-06-11 01:19 page_log </blockquote>Questions: (1) Is it likely that CUPS is causing these crashes? I know I haven't given very much information; I'd be happy to give any upon request. (2) How can I fix the CUPS issue? Thank you so much. -- Ubuntu Linux 6.06 (Dapper Drake)