Trying to output a report using the Zend Pdf library throws this error in stderror log: 2011-09-05 13:20:35.444 [STDERR] Failed to create temp file with mkstemp(): Permission denied 2011-09-05 13:20:35.444 [STDERR] Failed to increase temp file size with ftrancate(): Bad file descriptor This error in the error.log: 2011-09-05 13:45:25.228 [ERROR] [188.8.131.52:50982-0#APVH_184.108.40.206_example.com] Failed to initialize VMemBuf. 2011-09-05 13:45:25.228 [INFO] [220.127.116.11:50982-0#APVH_18.104.22.168_example.com] connection to [/tmp/lshttpd/APVH_demo.example.com_Suphp.sock.480] on request #0, confirmed, 1, associated process: 1011, running: 1, error: Illegal seek! 2011-09-05 13:45:25.228 [NOTICE] [22.214.171.124:50982-0#APVH_126.96.36.199_example.com] oops! 503 Service Unavailable 2011-09-05 13:45:25.228 [NOTICE] [188.8.131.52:50982-0#APVH_184.108.40.206_snowleotards.com] Content len: 74, Request line: POST /catalog/index.php/admin/sales_order/pdfinvoices/key/e5b2f8a77e012d61aa38d36fef25f6fe/ HTTP/1.1 INFO: Litespeed Web Server Enterprise v4.0.15 PHP 5.2.17 (cli) (built: Jun 13 2011 14:23:24) Copyright (c) 1997-2010 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies with eAccelerator v0.9.5.3, Copyright (c) 2004-2006 eAccelerator, by eAccelerator with the ionCube PHP Loader v4.0.8, Copyright (c) 2002-2011, by ionCube Ltd., and with Zend Optimizer v3.3.9, Copyright (c) 1998-2009, by Zend Technologies I checked permissions on /tmp and it's open to all rw. Suggestions on where to look?