RDBPROD: RMU/BACKUP/ONLINE Bugchecks with Exception at RMU72\DIOBCK$GET_PAGE + 17D0

(Doc ID 1384110.1)

Last updated on SEPTEMBER 05, 2017

Applies to:

Oracle Rdb Server on OpenVMS - Version 7.2.4.2 to 7.2.5 [Release 7.2]
HP OpenVMS Itanium
HP OpenVMS Alpha

Symptoms

Running Oracle Rdb 7.2.4.2 update 1 to 7.2.5 on OpenVMS. Performing RMU/BACKUP/ONLINE. You get a bugcheck (RMUBUGCHK.DMP).

On Oracle Rdb 7.2.4.2 update 1 and running OpenVMS Itanium V8.3-1H1, the bugcheck "Stack Dump Summary" looks like:

***** Exception at 000000008080C910 : RMU72\DIOBCK$GET_PAGE + 000017D0
%COSI-F-BUGCHECK, internal consistency failure
Saved PC = 000000008031CD90 : RMU72\RMUBCK$STAREA_PAGES_ONLINE + 00000E60
Saved PC = 0000000080306670 : RMU72\RMUBCK$DBF_BACKUP_AREA + 00000710
Saved PC = 0000000080305670 : RMU72\RMUBCK$DBF_BACKUP_THREAD + 000014E0
Saved PC = 00000000806275E0 : RMU72\RMUIO$THREAD_JACKET + 000000C0
Saved PC = FFFFFFFF800D4C10 : symbol not found
Saved PC = 00000000806273A0 : RMU72\RMUIO$RESCHEDULE + 000002E0
Saved PC = 00000000802FF560 : RMU72\BACKUP_START_BF_THREADS + 000021E0
Saved PC = 00000000802F4B40 : RMU72\RMUBCK$START_BACKUP_OP + 000015B0
Saved PC = 00000000802F3560 : RMU72\RMUCLI$BACKUP + 000019F0
Saved PC = 00000000803306D0 : RMU72\RMU_DISPATCH + 00000960
Saved PC = 000000008032F5C0 : RMU72\RMU_STARTUP + 00000900
Saved PC = 0000000080000C20 : RMU72\ELF$TFRADR + 00000050
Saved PC = FFFFFFFF845446B0 : Image PTHREAD$RTL + 0004A6B0
Saved PC = FFFFFFFF844FA6C0 : Image PTHREAD$RTL + 000006C0
Saved PC = 000000007ADA6730 : Image DCL + 0005C730

Changes

The triggers are:

  1. There are large DELETE and INSERT operations occurring in the database while the RMU/BACKUP/ONLINE is running. The DELETEs erase most of the lines on pages and the INSERTs refill the pages.
    AND
  2. Your database transaction sequence numbers (TSNs) have grown to exceed 32 bits.

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms