ORA-07445 [ksfd_reread_resilver()+340] Error When Starting Up Database (Doc ID 1990722.1)

Last updated on FEBRUARY 18, 2022

Applies to:

Symptoms

When trying to startup the database the following is seen:

conn / as sysdba

startup

ORA-03113: end-of-file on communication channel"

The error reported in the alert.log is:

ORA-07445: exception encountered: core dump [ksfd_reread_resilver()+340] [SIGSEGV] [ADDR:0x6000D698] [PC:0x5F1B2FC] [Address not mapped to object] []

The call stack in the incident trace file written by the error has the following functions:

       <- ssexhd <- restore_rt <- ksfd_reread_resilve <- ksfd_block_verify <- ksfdread_resilver
        <- ksp_spfile_read <- 245 <- ksp_spfile_get <- kspptsp <- kpoparsp
         <- opiodr <- ttcpip <- opitsk <- opiino <- opiodr
          <- opidrv <- sou2o <- opimai_real <- ssthrdmain <- main
           <- libc_start_main <- start

The accompanying trace file reveals:

HARD VIOLATION(S) DETECTED!
CORRUPTED BLOCK INFORMATION:
 memory address: 0x7f1f5b05dc00
 block size: 512
 block number: 3 [0x3]
 block offset in this write request of 1 block(s): 0
 file type: server parameter (SP) file (type value: 13)
REQUESTED CHECK(S):
 Magic number  Block size  Block number  Checksum  Head-tail match  
FAILED CHECK(S):
 CHECKSUM CHECK FAILED
  THE UB2 CHECKSUM OF THE WHOLE BLOCK IS 0x700, BUT IT SHOULD BE 0
  THE CHECKSUM EMBEDDED IN THE HEADER (OFFSET 0x10) IS 0xa24, BUT IT SHOULD BE 0xd24
Dump of the block that violated HARD check(s):
7F1F5B05DC00 00002243 00000003 00000000 04010000  [C"..............]
7F1F5B05DC10 00000A24 632E2A0A 72746E6F 665F6C6F  [$....*.control_f]
.........
WARNING: media corrupt block seen on file <ORACLE_HOME>/dbs/spfile.ora blockno=3

Changes

Cause

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