When kern.geom.raid3.use_malloc tunnable is set to 1, malloc(9) instead of uma(9) will be used for memory allocation. In case of problems or tracking bugs, there are more useful tools for malloc(9) debugging than for uma(9) debugging, like memguard(9) and redzone(9).
When kern.geom.raid3.use_malloc tunnable is set to 1, malloc(9) instead of
uma(9) will be used for memory allocation.
In case of problems or tracking bugs, there are more useful tools for malloc(9)
debugging than for uma(9) debugging, like memguard(9) and redzone(9).

MFC after:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase