Re: Thomas Munro > > Does anything of that ring a bell for someone? Is that an AIX bug, a > > PG bug, or something else? > > No clue here. Anything unusual about the file system (NFS etc)? Can > you truss/strace the system calls, to sanity check the flags arriving > into open(), and see if there's any unexpected other activity around > open() calls that might be coming from something you're linked > against? Hi, it's local storage, 16Gb SAN, Unity 500 storage, all data is on SSD disks, and file system is JFS2 (mount options are rw,log=INLINE). Good point about the flags, but we don't have access to the servers, so not sure if it will be possible to retrieve strace information. I'll try asking. Thanks, Christoph -- Senior Consultant, Tel.: +49 2166 9901 187 credativ GmbH, HRB Mönchengladbach 12080, USt-ID-Nummer: DE204566209 Trompeterallee 108, 41189 Mönchengladbach Geschäftsführung: Dr. Michael Meskes, Geoff Richardson, Peter Lilley Unser Umgang mit personenbezogenen Daten unterliegt folgenden Bestimmungen: https://www.credativ.de/datenschutz