panic: kmem_malloc(4096) on an SMP box

[Sven Willenberger]

Gleb Smirnoff wrote:

>   Today we have evidenced a panic on a DELL PowerEdge 1400
> with two processors on board:
> 
> panic: kmem_malloc(4096): kmem_map too small: 209715200 total allocated
> cpuid = 0; 
> 

On our 2G RAM supermicro systems the following in the kernel config file 
worked:

options			VM_KMEM_SIZE_SCALE="2"
options			VM_KMEM_SIZE_MAX="(512*1024*1024)"


If you are using 4G+ you may want to increase  MAX and perhaps reduce 
scaling and also add:

options			KVA_PAGES=512

Sven