If you end up opening a case with Oracle and getting it solved, I would be interested in hearing about it. We have a Mutex problem with 10.2.0.2, which is a pain because when it bites, one cannot log in via sqlplus, not even as SYS (or internal). ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Stefan Knecht Sent: Tuesday, May 16, 2006 8:27 AM To: oracle Cc: oracle-l Subject: Re: 10.2.0.2 Core dumps Can't reproduce at will, seems to occur irregularly - though I had 7 the past few days: Mon May 1 21:01:19 2006 SERVER COMPONENT id=PATCH_BGN: timestamp=2006-05-01 21:01:19 SERVER COMPONENT id=UPGRD_END: timestamp=2006-05-01 21:40:28 Thu May 11 15:17:16 2006 ORA-07445: exception encountered: core dump [kglhpd_internal()+1298] [SIGSEGV] [Address not mapped to object] [0x1525438] [] [] Thu May 11 15:45:30 2006 ORA-07445: exception encountered: core dump [qesmmIUnRegisterWorkArea()+628] [SIGILL] [Illegal operand] [0x8EA33E0] [] [] Thu May 11 15:45:35 2006 Sat May 13 15:45:21 2006 ORA-07445: exception encountered: core dump [kcbget()+1662] [SIGSEGV] [Address not mapped to object] [0xE] [] [] Sat May 13 15:47:04 2006 ORA-07445: exception encountered: core dump [kcbgcur()+2685] [SIGSEGV] [Address not mapped to object] [0xE] [] [] Sat May 13 15:48:04 2006 ORA-07445: exception encountered: core dump [kcbgcur()+2685] [SIGSEGV] [Address not mapped to object] [0xE] [] [] Mon May 15 11:13:44 2006 ORA-07445: exception encountered: core dump [kglhpd_internal()+1298] [SIGSEGV] [Address not mapped to object] [0x14C63C8] [] [] The times it happened basically reflect the times of activity on the system. As i stated earlier, it's a test system, and it's not being used daily. And even in repeating the very same application procedures; sometimes it dumps, sometimes it don't. Beats me. Though I would do some very extensive testing before going into production with 10.2.0.2, especially if you run Intermedia as well (like I do on this system). Stefan On 5/16/06, oracle <oracle@xxxxxxxxxxxx> wrote: Stefan Knecht wrote: > Hello all > > Anyone else experience unusually often occurring coredumps and segfaults > on 10.2.0.2 <http://10.2.0.2 > (linux) ? Feh - when is this occuring? I'm getting ready to go to production with a bunch of RAC environments on RHAS4 64bit Opterons... (worried look). Thanks