How to Extract all Libumem Oversized Allocations Using mdb (Doc ID 1297440.1)

Last updated on AUGUST 03, 2016

Applies to:

Solaris Operating System - Version 10 9/10 U9 to 11 11/11 [Release 10.0 to 11.0]
Information in this document applies to any platform.

Goal

The maximum buffer size in libumem (UMEM_MAXBUF) in Solaris 10 Update 9 and earlier is 16384 bytes. Memory allocations that do not fit into this buffer will be allocated in the oversized pool.

How are oversized allocations tracked in libumem?
How can the oversized pool be walked to see all memory allocations in the oversized pool?

Solution

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