PROBLEM:        (HPAQ83C24)     (Patch ID: OSF375-350297)
********
This patch fixes a problem that causes the system to panic after creating
a symbolic link to the root file system ('/') and accessing it like a
normal file.

For an AdvFS file system, the system will panic with the following error
message:

        bs_bf_htop: invalid handle

For other file systems, the system will panic with the following error message:

       vrele:bad ref count


For 'bs_bf_htop: invalid handle' (AdvFS) a typical stack trace could
look like:

   0 boot() ["../../../../src/kernel/arch/alpha/machdep.c":1730]
   1 panic(s = 0xffffffffa10f2e30 = "N1 = 0") ["../../../..
        /src/kernel/bsd/subr_prf.c":757, 0xfffffc00004421e4]
   2 advfs_sad() ["../../../../src/kernel/msfs/bs/bs_misc.c":322, ]
   3 bs_bf_htop() ["../../../../src/kernel/msfs/bs/bs_access.c":500, ]
   4 bs_refpg() ["../../../../src/kernel/msfs/bs/bs_buffer2.c":1472, ]
   5 seq_search() ["../../../../src/kernel/msfs/fs/fs_dir_lookup.c":1457, ]
   6 msfs_lookup() ["../../../../src/kernel/msfs/osf/msfs_lookup.c":624, ]
   7 namei() ["../../../../src/kernel/vfs/vfs_lookup.c":563, ]
   8 stat1() ["../../../../src/kernel/vfs/vfs_syscalls.c":2327, ]
   9 stat() ["../../../../src/kernel/vfs/vfs_syscalls.c":2295, ]
  10 syscall() ["../../../../src/kernel/arch/alpha/syscall_trap.c":519, ]
  11 _Xsyscall() ["../../../../src/kernel/arch/alpha/locore.s":1094, ]

For 'vrele:bad ref count' a typical stack trace could look like:

   0 boot() ["../../../../src/kernel/arch/alpha/machdep.c":1730, ]
   1 panic(s = 0xfffffc0000628238 = "vrele: bad ref count") ["../../..
        /../src/kernel/bsd/subr_prf.c":757, 0xfffffc00004421e4]
   2 vrele() ["../../../../src/kernel/vfs/vfs_subr.c":2196, ]
   3 exit() ["../../../../src/kernel/bsd/kern_exit.c":875, ]
   4 rexit() ["../../../../src/kernel/bsd/kern_exit.c":635, ]
   5 syscall() ["../../../../src/kernel/arch/alpha/syscall_trap.c":519, ]
   6 _Xsyscall() ["../../../../src/kernel/arch/alpha/locore.s":1094, ]