Microsoft KB Archive/247973

= PRB: Missing Oracle File SQLNET.ora May Cause Access Violation on Oracle8i =

Article ID: 247973

Article Last Modified on 10/17/2003

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APPLIES TO


 * Microsoft Open Database Connectivity 2.5
 * Microsoft Open Database Connectivity 2.5
 * Microsoft Open Database Connectivity 2.5
 * Microsoft Open Database Connectivity 2.0
 * Microsoft Open Database Connectivity 2.0
 * Microsoft Open Database Connectivity 2.0
 * Microsoft Open Database Connectivity 2.0
 * Microsoft Open Database Connectivity 2.0

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This article was previously published under Q247973



WARNING:This information is preliminary and has not been confirmed or tested by Microsoft. Use only with discretion.



SYMPTOMS
When using the pre-MDAC 2.5 Microsoft Oracle ODBC Driver with Oracle 8i, an access violation (AV) with the following call stack may occur under stress:

ChildEBP RetAddr Args to Child

078ebdb8 0564016f 00005420 00280910 00000000 oran8!nnfgrne+0x54a(FPO: [Non-Fpo]

078ec410 056ded02 05655420 078ee62c 00000016 oranl8!nlolgobj+0x6df(FPO: [Non-Fpo]

078ec450 05684b90 05655420 078ee62c 0027feb0 oran8!snzutmts_tostr+0xde42(FPO: [Non-Fpo]

078ec480 056769b2 05655420 078ee62c 000000ff oran8!nnfsn2a+0x30(FPO: [Non-Fpo]

078ed5f8 056cf4b4 05655420 00001803 078ee62c oran8!niqname+0x252(FPO: [Non-Fpo]

078ef764 05414c57 078ee62c 00000010 00001803 oran8!osncon+0x254(FPO: [Non-Fpo]

078ef944 0541217e 0127a104 05223d20 00000014 ORACLIENT8!xupiulf+0x16427(FPO: [Non-Fpo]

078ef968 054121ca 052258d0 05223d20 00000014 ORACLIENT8!xupiulf+0x1394e(FPO: [Non-Fpo]

078ef984 054182f1 052258d0 05223d20 00000014 ORACLIENT8!xupiulf+0x1399a(FPO: [Non-Fpo]

078efe3c 05419298 052258d0 05226ed8 00000003 ORACLIENT8!xupiulf+0x19ac1(FPO: [Non-Fpo]

078efe7c 053ed8c4 052258d0 05226ed8 ffffffff ORACLIENT8!xupiulf+0x1aa68(FPO: [Non-Fpo]

078efeb4 053ec8a0 052258d0 05226ed8 ffffffff ORACLIENT8!upilog+0x64(FPO: [Non-Fpo]

078efee8 10002642 05226178 052258d0 05226ed8 ORACLIENT8!ocirlo+0xb0(FPO: [Non-Fpo]

078eff48 1f579b69 00000013 00000009 0782f1b4 OCIW32!olog+0x62(FPO: [Non-Fpo]

078eff84 7800265a 052251f0 005c0042 0782f110 msdaora!DllGetClassObject+0xe35(FPO: [Non-Fpo]

078effb8 77f04ee8 0027ef40 005c0042 0782f110 MSVCRT!beginthreadex+0xb2(FPO: [Non-Fpo]

078effec 00000000 780025ff 0027ef40 00000000 KERNEL32!lstrcmpiW+0xbe(FPO: [Non-Fpo]



RESOLUTION
To resolve this problem, use either an Oracle-recommended ODBC driver that is compatible with Oracle 8i or the Microsoft Oracle ODBC driver found in MDAC 2.5 and later, and make sure that the Oracle SQLNET.ora file is installed.



MORE INFORMATION
Using the Microsoft ODBC Driver for Oracle build (2.573.4202 and earlier) with Oracle 8i is neither supported nor recommended. For additional information, see the following article or articles in the Microsoft Knowledge Base:

239719 INFO: Support Limits of MS Oracle ODBC Driver/OLEDB Provider

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Keywords: kboracle kbdatabase kbprb kbdriver kbmdacnosweep KB247973

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