PROBLEM:  (QAR70521) (PATCH ID: TCR160-034)
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This patch fixes a problem which caused a boot failure on a cluster
with a large number of shared SCSI buses. The system would panic
during the AM initialize phase with different panic strings mostly
simple lock timeouts.
PROBLEM: (BCGM82522, ZPO051905, BCSM818JN, VNO63760A) (PATCH ID: TCR160-068)
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This patch fixes a problem in clustered systems. It reduces the occurrences of
tmv2_notify_cbf error messages in the errlog.


PROBLEM: (DE_G03908) (PATCH ID: TCR160-083)
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This change fixes a possible system hang during shutdown due to the asehsm 
process having active wired memory. A typical stack trace :
   0 pmap_is_lw_wired     src/kernel/arch/alpha/pmap.c : 6095
   1 u_map_delete         src/kernel/vm/vm_umap.c : 1435
   2 vm_map_exit          src/kernel/vm/vm_map.c : 2294
   3 exit                 src/kernel/bsd/kern_exit.c : 1209
   4 sigexit              src/kernel/bsd/kern_sig.c : 5368
   5 psig                 src/kernel/bsd/kern_sig.c : 5088
   6 syscall              src/kernel/arch/alpha/syscall_trap.c : 761
   7 _Xsyscall            src/kernel/arch/alpha/locore.s : 1505

The halt process stack :

>  0 thread_block         src/kernel/kern/sched_prim.c : 2376
   1 unix_master          src/kernel/kern/parallel.c : 535
   2 spec_write           src/kernel/vfs/spec_vnops.c : 2356
   3 msfsspec_write       src/kernel/msfs/osf/msfs_vnops.c : 4653
   4 vn_write             src/kernel/vfs/vfs_vnops.c : 1240
   5 rwuio                src/kernel/bsd/sys_generic.c : 1950
   6 write                src/kernel/bsd/sys_generic.c : 1873
   7 syscall              src/kernel/arch/alpha/syscall_trap.c : 627
   8 _Xsyscall            src/kernel/arch/alpha/locore.s : 1505