Oracle Solaris Performance, Panics, Hangs, and Dtrace (MOSC)

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Default Memory Allocator Security Protections using Silicon Secured Memory (SSM ADI)

in Oracle Solaris Performance, Panics, Hangs, and Dtrace (MOSC)

In Solaris 11.3 we provided the ability to use the Silicon Secured Memory feature of the Oracle SPARC processors in the M7 and M8 families. An API for applications to explicitly manage ADI (Application Data Integrity) versioning was provided, see adi(2) man page, as well as new memory allocator library - libadimalloc(3LIB).

This required either code changes to the application or arranging to set LD_PRELOAD_64=/usr/lib/64/libadimalloc.so.1 in the environment variables before the application started. The libadimalloc(3LIB) allocator was derived from the libumem(3LIB) codebase but doesn't expose all of the features that libumem does.

With Oracle Solaris 11.4 Beta the use of ADI has been integrated into the default system memory allocator in libc(3LIB) and libumem(3LIB), while retaining libadimalloc(3LIB) for backwards compatibility with Oracle Solaris 11.3 systems.

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