PROBLEM:  (QAR 57350)	(Patch ID: TCR150-004)
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This patch fixes a problem where, under certain conditions like SCSI aborts and
resets, it's possible for host target mode CCB's to be issued multiple times.  
This can corrupt the SIM nexus queue and result in system panics ("simple_lock:
time limit exceeded") on multi-processor, and system hangs on single processor 
systems.

A sample stack trace for the panic may look like:

  0 stop_secondary_cpu()
  1 panic("event_timeout: panic request")
  2 event_timeout()
  3 xcpu_puts()
  4 printf()
  5 panic("simple_lock: time limit exceeded")
  6 simple_lock_fault()
  7 simple_lock_time_violation()
  8 sim_action()
  9 xpt_sim_func()
  10 xpt_action()
  12 cdisk_complete()
  13 xpt_callback_thread()

PROBLEM:  (QAR 57380 & MCPMC059X)	(Patch ID: TCR150-004)
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This patch fixes a kernel memory fault panic caused by a race condition when 
the AM de-initializes and removes the device structures.

A sample stack trace might look like:

  0 boot()
  1 panic("thread_block: simple lock owned")
  2 thread_block()
  3 thread_preempt()
  4 boot()
  5 panic("kernel memory fault")
  6 trap()
  7 _XentMM()
  8 am_find_device()
  9 SCSI_cleanup_device()
  10 am_dereg_notification_devices()
  11 am_de_initialize()
  12 am_handle_ioctl()
  13 am_ioctl()
  14 spec_ioctl()
  15 vn_ioctl()
  16 ioctl_base()
  17 ioctl()
  18 syscall()
  19 _Xsyscall()

PROBLEM:  (QAR 63465)    (Patch ID: TCR150-030)
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This patch fixes a problem in which shared tape drives may not failover
properly.

SCSI bus resets will be seen in the error log and the tape service will not
have failed over to another server.

PROBLEM:  (QAR 64932)    (Patch ID: TCR150-036)
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This patch fixes two problems:

o  A problem in which the following messages may appear in the binary error 
   log.

     "SCSI STATUS RESERVATION CONFLICT Target xx Lun xx"
or
     "Max SEND SCSI BUSY retries exhausted"

o  A problem in which a system may panic if the system has an IDE interface 
   and ASE is then installed.

PROBLEM:  (QAR 66292, QAR 71462)    (Patch ID: TCR150-057)
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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:  (VNO41809A, MGO104006, VNO29021A) (PATCH ID: TCR150-081)
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This patch fixes the following TCR problems:

- After error events are processed, a timing hole exists
   whereby important events can be lost.

- After a HSZ controller failure, SCSI device reservations
   could get lost because the error events are not being
   ordered properly.