SuperCluster/Exadata: Stopping/Restarting 12.1.0.2 CRS/DB cause node panic on Solaris

Asset ID:	1-72-1947141.1
Update Date:	2016-03-21
Keywords:

Solution Type Problem Resolution Sure

Solution 1947141.1 : SuperCluster/Exadata: Stopping/Restarting 12.1.0.2 CRS/DB cause node panic on Solaris

Applies to:

Oracle SuperCluster M6-32 Hardware - Version All Versions to All Versions [Release All Releases]
Oracle Exadata Storage Server Software - Version 12.1.1.1.0 to 12.1.1.1.1 [Release 12.1]
Oracle Solaris on x86-64 (64-bit)
Oracle Solaris on SPARC (64-bit)

Symptoms

Solaris Operating System

12.1.0.2 - CRS and Database

Database node panic and reboot whenever restarting oracle clusterware/database using below commands

1) srvctl stop database -d db_name
2) crsctl stop crs

Cause

Node is crashing in verbs driver

/var/adm/messages

Nov 18 12:10:20 drm6client01 genunix: [ID 723222 kern.notice] 000002a1088235e0 sol_uverbs:sol_uverbs_close+97c (c4038d3c1d10, 0, 20, 1, 38, c4038e365b78)
Nov 18 12:10:20 drm6client01 genunix: [ID 702911 kern.notice] %l0-3: 0000c4038fa322c0 000000007ae0e528 0000c4038fa322f8 0000000000000000
Nov 18 12:10:20 drm6client01 %l4-7: 0000c4038fa32318 0000000000000010 0000c4038fa32330 0000c4038d3c1d20
Nov 18 12:10:20 drm6client01 genunix: [ID 723222 kern.notice] 000002a1088236b0 specfs:spec_close+14c (c4038c7b2d80, c4038e45bf08, 620, c4038cc64620, c40278ff45d0, c4038cc64598)

This will only be used if the Database Node is configured to use exafusion optimisations. Currently these are not supported on Super Cluster/Exadata Solaris Database Node.

Solution

Disable Exafusion on ASM and Database instance

Set the following parameter on ASM and database instance on all nodes

_exafusion_enabled=FALSE

SQL> alter system set "_exafusion_enabled"=FALSE scope=spfile;

All instances must be restarted for the change to take effect.

Note :- There is no impact by disabling Exafusion on Solaris

References

<NOTE:1270094.1> - Exadata Critical Issues
<BUG:18876265> - ORA-00600: INTERNAL ERROR CODE, ARGUMENTS: [IPC_CREATE_QUE_1], [1], [0], [], [],

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