Bug 208068

Summary: physical memory based tunables can exhaust KVA
Product: Base System Reporter: Justin Hibbits <jhibbits>
Component: kernAssignee: freebsd-bugs (Nobody) <bugs>
Status: New ---    
Severity: Affects Some People CC: emaste, shawn.webb
Priority: ---    
Version: CURRENT   
Hardware: Any   
OS: Any   

Description Justin Hibbits freebsd_committer 2016-03-16 18:23:26 UTC
Tunables scaled against physical memory can exhaust KVA on large-memory 32-bit systems (PAE-style), causing early boot panics.

One possible solution would be to scale static allocations(based on maxusers) against KVA rather than physmem.