ORA Database Error Messages ORA-09881: sstasfre/sstasdel: shmdt error, unable to detach tas read page July 28, 2015 mpbod ORA-09881: sstasfre/sstasdel: shmdt error, unable to detach tas read page Cause: Error in shmdt. Action: Check errno returned. Back to previous menuhttps://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)