Module Name:	syssrc
Committed By:	thorpej
Date:		Fri Jun  4 23:38:42 UTC 1999

Modified Files:
	syssrc/sys/kern: kern_malloc.c
	syssrc/sys/uvm: uvm_fault.c uvm_fault.h uvm_fault_i.h uvm_km.c
	    uvm_map_i.h

Log Message:
Keep interrupt-safe maps on an additional queue.  In uvm_fault(), if we're
looking up a kernel address, check to see if the address is on this
"interrupt-safe" list.  If so, return failure immediately.  This prevents
a locking screw if a page fault is taken on an interrupt-safe map in or
out of interrupt context.


To generate a diff of this commit:
cvs rdiff -r1.43 -r1.44 syssrc/sys/kern/kern_malloc.c
cvs rdiff -r1.32 -r1.33 syssrc/sys/uvm/uvm_fault.c
cvs rdiff -r1.10 -r1.11 syssrc/sys/uvm/uvm_fault.h
cvs rdiff -r1.8 -r1.9 syssrc/sys/uvm/uvm_fault_i.h
cvs rdiff -r1.26 -r1.27 syssrc/sys/uvm/uvm_km.c
cvs rdiff -r1.13 -r1.14 syssrc/sys/uvm/uvm_map_i.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.