Module Name:	syssrc
Committed By:	simonb
Date:		Mon Mar 19 02:25:34 UTC 2001

Modified Files:
	syssrc/sys/uvm: uvm_unix.c

Log Message:
In sys_obreak(), the return value of atop() was being used to change
the process dsize for both positive and negative changes.  Since atop()
casts its result to a paddr_t (which is unsigned), negative changes in
process data size resulted in unrealistic dsizes being set.  Use
"dsize -= atop(-diff)" for a negative diffs.  Fixes the "Impossible
process sizes" mentioned on current-users.

Unsigned cast catch and much debugging help from Martin Laubach.


To generate a diff of this commit:
cvs rdiff -r1.19 -r1.20 syssrc/sys/uvm/uvm_unix.c

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