==== run-deadlock ====
cc -O2 -pipe  -Wall -Wpointer-arith -Wuninitialized -Wstrict-prototypes -Wmissing-prototypes -Wunused -Wsign-compare -Wshadow  -MD -MP  -c /home/src/regress/sys/uvm/vnode/vnode.c
cc -O2 -pipe  -Wall -Wpointer-arith -Wuninitialized -Wstrict-prototypes -Wmissing-prototypes -Wunused -Wsign-compare -Wshadow  -MD -MP  -c /home/src/regress/sys/uvm/vnode/test-deadlock.c
cc   -o vnode vnode.o test-deadlock.o 
f=`mktemp`; trap 'rm $f' EXIT; ./vnode -f $f deadlock
parent = 60985, child = 66939