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ORA-7445 [Qkxrpxformkcc()+197] after Applying Patch 7456731 (Doc ID 1139183.1)

Last updated on OCTOBER 10, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 and later
Information in this document applies to any platform.

Symptoms

After applying the patch for bug:7456731 several core dumps under qkxrPXformKcc() in different processes are seen, eg.:

ORA-07445: exception encountered: core dump [qkxrPXformKcc()+197] [SIGSEGV] [unknown code] [0x000000000] [] []


The current SQL statement from the crashes session shows that ORA_ROWSCN is used.

Other possible symptoms are:

ORA-7445 [qkexrFindMatching()+56]
ORA-600 [qkexrFindMatching1]

Call stacks will look similar to:

... qkxrPXformKcc qkxrDo qkexrXformOpn_Col qkexrXformOpn_Sys qkexrXformOpn
qkxrXformRwo qertbIAllocate qertbAllocate qknRwsAllocateTree qknDoRwsAllocate
qkaTraverseQknDescendents qkaTraverseQkn qkadrv2Post qkadrv2 opitca ...

or

... qkexrFindMatching qkexrXformOpn qkexrXformOpn_Col qkexrXformOpn_Sys
qkexrXformOpn qkxrXformRwo qertbIAllocate qertbAllocate qknRwsAllocateTree
qknDoRwsAllocate qkaTraverseQknDescendents qkaTraverseQkn qkadrv2Post qkadrv2
opitca ...

Changes

<Patch:7456731> was recently applied

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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