PROBLEM:  (CLD MGO104106, CLD HPAQ40QCM)    (Patch ID: OSF440-025)
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Typical stack trace for the assert panic is:
   panic
   assert_wait_mesg
   xpt_ccb_alloc
   htm_immed_async
   isp_process_response_queue

For the blocked thread, there will be at least one thread waiting forever
with a stack trace of:

       thread_block
       mpsleep
       isp_enable_lun
       htm_enable_lun
       handle_immediate
       sim_action
       xpt_sim_func
       xpt_action
       tmv2_complete_disable
       tmv2_accept_cbf
       xpt_callback_thread

PROBLEM:  (CLD GOZ72114A, CLD BCGMA10Z6, CLD BCGMA0X3C, CLD BCGMA1GFC,
           CLD BCGMB06HF, CLD DSATB0SF1, CLD DSATB0X2F, CLD HPAQB0X3N,
           CLD EVT75135A) (Patch ID:OSF440-247)
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This patch fixes a problem on configurations having multiple Qlogic 1020/1040
based SCSI controllers (such as KZPBA) and multiple CPUs.  The symptom
of the problem is a performance degradation up to having ss_perform_timeouts
being logged against the KZPBA scsi devices.  In some extreme cases, the
symptoms can be so severe that it makes make it appear as if the system was
hung. Tape units have had a number of problems with vdump, tar, and nsrd
related to the command timeouts.

PROBLEM:  (BCGM90Z90)    (Patch ID: OSF440-281)
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This patch fixes a problem where timeouts are not canceled on I/O requests
causing the I/O block to be freed inappropriately.