Database Crashes With ORA-07445 [kgldtin:xxxx[kgl.c] [SIGSEGV] [Address not mapped to object]
(Doc ID 551885.1)
Last updated on FEBRUARY 02, 2022
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 to 22.214.171.124 [Release 9.2]
Information in this document applies to any platform.
This problem can occur on any platform.
The database crashes after the following errors:
ORA-07445: exception encountered: core dump [kgldtin:7285[kgl.c]] [SIGSEGV] [Address not mapped to object] [0x000000000]  
ORA-07445: exception encountered: core dump [kglobcl:2690[kgl2.c]] [SIGSEGV] [Address not mapped to object] [0x000000000]  
The call stack will look similar to the following:
kgldtin kgldti kkdlgob qcsfgob qcsprfro qcspqb kkmdrv opiSem opiprs kksald rpiswu2 kkslod kglobld kglobpn kglpim kglpin kksfbc kkspsc0 opiosq0 . . .
The PROCESS STATE section in the tracefile may show a latch is being held. For example:
holding 455b66948 Child library cache level=5 child#=1
Location from where latch is held: kgldti: 2child:
Context saved from call: 0
This problem is introduced in 126.96.36.199 by the fix for unpublished Bug:3749490. Any database with a one-off or merge patch containing the fix for unpublished Bug:3749490 can be affected.
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