Solaris 10 Sparc 4V Systems Without Patch 138888-01 May Hang or Panic With Many Threads Stuck In kern_preprom (Doc ID 1345573.1)

Last updated on AUGUST 27, 2015

Applies to:

Solaris SPARC Operating System - Version 10 3/05 to 10 5/09 U7 [Release 10.0]
Information in this document applies to any platform.
Sun 4V Systems


Symptoms

If the described issue occurs and the system hangs, even sending a break may fail.  Generally the system must be panicked from the service processor, though this bug can cause a panic as well.

A crash dump generated during a described hang shows many threads waiting for a condition var (from unix:kern_preprom+0x138)

Threads may resemble the following:




Cause

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