> it seems that <sys/namei.h> already has cache_enter().  I wonder
> if this patch looks sane and safe:

That was the first one.  With that one it worked faster, but on
reboot it did:

Jan 20 01:43:49 ultra shutdown: reboot by he: =

Jan 20 01:44:01 ultra syslogd: Exiting on signal 15
syncing disks... done
unmounting file systems...uvm_fault(0xcca452a8, 0x682000, 0, 2) -> 0xe
kernel: page fault trap, code=3D0
Stopped in pid 15309.1 (reboot) at      netbsd:cache_remove+0x37:      =
 movl    %eax,0x4(%edx)
db> trace =

cache_remove(cdba5054,cc9dd990,cdb47e0c,0,1) at netbsd:cache_remove+0x3=
7
cache_purgevfs(c1d44000,cdb47e44,1,1,1) at netbsd:cache_purgevfs+0x3e
dounmount(c1d44000,80000,cc9dd990,0,cdb47e78) at netbsd:dounmount+0x85
vfs_unmountall(cc9dd990,0,0,3800c8f9,0) at netbsd:vfs_unmountall+0xb1
vfs_shutdown(0,cc8cfbe0,cdb47f3c,c0380a2a,0) at netbsd:vfs_shutdown+0xa=
6
cpu_reboot(0,0,cdb47ecc,c0373bd9,9) at netbsd:cpu_reboot+0x103
sys_reboot(cc8cfbe0,cdb47f64,cdb47f5c,0,cb649d10) at netbsd:sys_reboot+=
0x46
syscall_plain() at netbsd:syscall_plain+0x7e
--- syscall (number 208) ---
0xbdb3e17b:
db> =


Hm.

- H=E5vard