By chance is this using UFS file system and not using directio (forcedirectio)? On Thu, Dec 10, 2009 at 11:45 AM, Christo Kutrovsky <kutrovsky.oracle@xxxxxxxxx> wrote: > I traced down the problem to a Solaris 10 BUG. bug_id 6642475, has to do > with kernel locks when trying to allocate contiguous memory. The code is > inefficient, and the workaround is to disable it via echo > "pg_contig_disable/W 1" | mdb -kw. > > I hope this helps someone out there. I don't know in what release it is > resolved. -- Regards, Greg Rahn http://structureddata.org -- //www.freelists.org/webpage/oracle-l