Intermittent ORA-07445 errors - Any ideas?

Question

New installation of XE.
All latest XP patches.
Local browser: Mozilla Firefox, latest version.
Problems occur intermittently when creating pages in application express.
ORACLE V10.2.0.1.0 - Production vsnsta=0
vsnsql=14 vsnxtr=3
Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production
Windows XP Version V5.1 Service Pack 2
CPU : 1 - type 586
Process Affinity : 0x00000000
Memory (Avail/Total): Ph:469M/1023M, Ph+PgF:2353M/2926M, VA:1606M/2047M
Instance name: xe
Example 1
========
ksedmp: internal or fatal error
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [__intel_fast_memcmp+123] [PC:0x264EDCF] [ADDR:0x8DFE65BE] [UNABLE_TO_READ] []
Current SQL statement for this session:
select inst_id,ksutmtim from x$ksutm
Example 2
========
ksedmp: internal or fatal error
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [__intel_fast_memcmp+123] [PC:0x264EDCF] [ADDR:0x8D427140] [UNABLE_TO_READ] []
Current SQL statement for this session:
SELECT SPACE_USED FROM ( SELECT SUM(BYTES) SPACE_USED FROM SYS.DBA_DATA_FILES, SYS.TS$ WHERE TABLESPACE_NAME = NAME AND CONTENTS$ = 0 AND FLAGS != 17 ) S ORDER BY 1
Example 3
========
ksedmp: internal or fatal error
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_ph2orf_regular_formals+1940] [PC:0x60C551D0] [ADDR:0x3C6DFCD4] [UNABLE_TO_READ] []
Current SQL statement for this session:
declare
rc__ number;
simple_list__ owa_util.vc_arr;
complex_list__ owa_util.vc_arr;
begin
owa.init_cgi_env(:n__,:nm__,:v__);
htp.HTBUF_LEN := 63;
null;
null;
simple_list__(1) := 'sys.%';
simple_list__(2) := 'dbms\_%';
simple_list__(3) := 'utl\_%';
simple_list__(4) := 'owa\_%';
simple_list__(5) := 'owa.%';
simple_list__(6) := 'htp.%';
simple_list__(7) := 'htf.%';
if ((wwv_flow_epg_include_modules.authorize('wwv_flow.accept') = false) or (owa_match.match_pattern(p_string =>
'wwv_flow.accept'
/* */,p_simple_pattern =>
simple_list__
,p_complex_pattern =>
complex_list__
,p_use_special_chars =>
false)))
then
rc__ := 2;
else
null;
null;
wwv_flow.accept(p_flow_id=>:p_flow_id,p_flow_step_id=>:p_flow_step_id,p_instance=>:p_instance,p_page_submission_id=>:p_page_submission_id,p_request=>:p_request,p_arg_names=>:p_arg_names,p_t01=>:p_t01,p_t02=>:p_t02,p_t03=>:p_t03,p_t04=>:p_t04,p_t05=>:p_t05,p_t06=>:p_t06,p_t07=>:p_t07,p_t08=>:p_t08,p_t09=>:p_t09,p_t10=>:p_t10,p_t11=>:p_t11,p_t13=>:p_t13,p_t15=>:p_t15,p_t16=>:p_t16,p_t17=>:p_t17,p_t18=>:p_t18,f02=>:f02,f05=>:f05,f03=>:f03,f04=>:f04,f01=>:f01,fcs=>:fcs,f06=>:f06,p_md5_checksum=>:p_md5_checksum);
if (wpg_docload.is_file_download) then
rc__ := 1;
wpg_docload.get_download_file(:doc_info);
null;
null;
null;
commit;
else
rc__ := 0;
null;
null;
null;
commit;
owa.get_page(:data__,:ndata__);
end if;
end if;
:rc__ := rc__;
end;
ksedmp: Obtaining call stack failed twice. not retrying

Answer 1

check the arguments for ORA-7445 errors.
7445 errors are internal you need to contact oracle support, and also for work around you can pass those arguments in *Troubleshoot an ORA-600 or ORA-7445 Error Using the Error Lookup Tool [ID 7445.1]*
due to 7445 erros database was hung up/not responeded, so may be it is the reason for 3113 errors(inbound connection timeout)
and post the value of sqlnet_authentication_services from sqlnet.ora file..
Thanks