cvs -d /e/celeron/CVSup/main co -D20030531-UTC src/sys > & co-20030531-utc
   cd src
   tar zxf /e/u/j/nandra/macppc-030615.tar.gz
   cd sys/arch/macppc/conf
   cp /e/u/j/kernel/INSECURE-ZS-L2CR-SHM .
   config INSECURE-ZS-L2CR-SHM
   cd ../compile/INSECURE-ZS-L2CR-SHM/
   make depend && time make

ld -N -Ttext 100000 -e __start -S -o netbsd ${SYSTEM_OBJ} vers.o
   text    data     bss     dec     hex filename
4057472   74152  238912 4370536  42b068 netbsd
719.936u 101.794s 12:32.56 109.1%       0+0k 14+3471io 49pf+0w
ttyp1:makoto@serv  6:59:58/030703(...compile/INSECURE-ZS-L2CR-SHM)> history

＠ なので、何時の変更が問題なのか調査:

osrelease na    ts
--------- ----  ----  --
1.6T      0516  0517  ○
=         0531  0615  ○
=         0603  =     ○
=         0604  =     × (nfs_vnops.c = 1.171 06/03 14:27)
=         =     =     ○ (nfs_vnops.c = 1.170 05/27 14:41)
=         0605  =     ×
=         0606  =     ×
=         0612  =     ×
1.6U      0627  0701  ×
=         =     =     × (nfs_vnops.c = 1.173 06/27 14:00)
=         =     =     × (nfs_vnops.c = 1.175 06/29 22:32)