Assert Failed

the file of af.XXXXX is : //////////////////////////////////////////////////////////////////////////////// / 13:04:52 IBM Informix Dynamic Server Version 10.00.FC7 Software Serial Number AAA#B000000 13:04:52 Assert Failed: Buffer in wrong state for cleaning deleted items 13:04:52 Who: Session(92256, informix@xmkf_B24, 0, c0000000c8c5dd48) Thread(114144, btscanner_0, c0000000c7f9d038, 3) File: rsbtree.c Line: 4295 13:04:52 Results: Internally corrected 13:04:52 Stack for thread: 114144 btscanner_0 base: 0xc0000000c4087000 len: 69632 pc: 0x0000000000000000 tos: 0xc0000000c4088910 state: running vp: 3 ( 0) 0x4000000000a4641c legacy_hp_afstack + 0x25c [/home/informix/IDS10C7/bin/oninit] ( 1) 0x4000000000a45a6c afstack + 0x5c [/home/informix/IDS10C7/bin/oninit] ( 2) 0x4000000000a44d74 afhandler + 0x98c [/home/informix/IDS10C7/bin/oninit] ( 3) 0x4000000000a44318 affail_interface + 0x50 [/home/informix/IDS10C7/bin/oninit] ( 4) 0x400000000076b3e8 btdelfgrmv + 0x6c0 [/home/informix/IDS10C7/bin/oninit] ( 5) 0x40000000008cadd8 btc_dirty_page + 0xba0 [/home/informix/IDS10C7/bin/oninit] ( 6) 0x40000000008c94f4 btc_leaf_scan_index + 0x144 [/home/informix/IDS10C7/bin/oninit] ( 7) 0x40000000008c9350 btc_scan_index + 0x928 [/home/informix/IDS10C7/bin/oninit] ( 8) 0x40000000008c5488 btscanner_loop + 0x128 [/home/informix/IDS10C7/bin/oninit] ( 9) 0x4000000000a1c074 startup + 0xd4 [/home/informix/IDS10C7/bin/oninit] (10) 0x4000000000a1be5c resume + 0x10c [/home/informix/IDS10C7/bin/oninit] ===========------------- - - - - - - /home/informix/IDS10C7/bin/onstat -g ses 92256: IBM Informix Dynamic Server Version 10.00.FC7 -- On-Line -- Up 38 days 22:34:44 -- 3509664 Kbytes ===========------------- - - - - - - /home/informix/IDS10C7/bin/onstat -g sql 92256: IBM Informix Dynamic Server Version 10.00.FC7 -- On-Line -- Up 38 days 22:34:44 -- 3509664 Kbytes

It seems bug in before IDS10.0FC8 . http://www-1.ibm.com/support/docview.wss?uid=swg27011556 IC54847 SERVER REPORTS A NON-FATAL ERROR: ASSERT FAILED: BUFFER IN WRONG STATE FOR CLEANING DELETED ITEMS

i think it was a bug too, this our testing server, it's ids fc7. On our production server is fc8. according with your said, I will upgrade it . Thanks