When adding or removing CPUs or Memory through Dynamic Reconfiguration(DR) on AIX, Veritas File System (VxFS) may cause the server to panic.
Article ID: 100028842
Updated On:
Description
Error Message
The panic stack will look similar to:
...
.simple_lock_try+000014 ()
vx_ilock_try+000010 ()
vx_iflush_list+0004B4 ()
vx_workitem_process+000050 ()
vx_worklist_process+0001D4 ()
vx_worklist_thread+000090 ()
vx_thread_base+000048 ()
...
Cause
During a DR event, VxFS adjusts its buffer and i-node caches. Background flushing threads can travel these lists, they might refer to stale pointers and cause the panic.
Resolution
5.1SP1RP4 contains a fix for this issue.
A HotFix is available on 6.0.3 to resolve the problem. Please contact support for this hotfix.
6.1 is not affected by this issue.
Applies To
This issue can effect AIX servers using VxFS 5.1 or 6.0 when performing Dynamic Reconfiguration (DR) of CPUs or Memory.
Issue/Introduction
When adding or removing CPUs or Memory through Dynamic Reconfiguration(DR) on AIX, Veritas File System (VxFS) can crash with a Data Storage Interrupt (DSI).
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