PROBLEM: (82158) (PATCH ID: OSF510-004)
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I/O hangs to the ITPSA controller when doing cross RAD I/O (adapter on one quad
thread performing I/O on other quad).


PROBLEM: (BCSM91X60) (PATCH ID: OSF510-210)
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 This patch fixes simple lock time-outs and kernel memory
 faults that can occur with
 EV6 hardware and the itpsa driver.  Stack traces look
 like the following:

  panic+228:  stop_secondary_cpu(0xff800180)
  event_timeout+252:  panic("event_timeout: panic request")  
  xcpu_puts+76:   event_timeout()
  printf+312:  xcpu_puts()
  panic+584:  printf()
  simple_lock_fault+492:     
  panic("simple_lock: time limit exceeded")
  simple_lock_time_violation+24:      
  simple_lock_fault()   simple_lock_D+0:    simple_lock_time_violation()
 WARNING: "st" irregularity: repeating frame: simple_lock_D+0




  0 stop_secondary_cpu   src/kernel/arch/alpha/cpu.c : 614
  1 panic                src/kernel/bsd/subr_prf.c : 751
  2 event_timeout        src/kernel/arch/alpha/cpu.c : 1183
  3 xcpu_puts            src/kernel/bsd/subr_prf.c : 895
  4 printf               src/kernel/bsd/subr_prf.c : 423
  5 panic                src/kernel/bsd/subr_prf.c : 804
  6 trap                 src/kernel/arch/alpha/trap.c : 1760
  7 _XentMM              src/kernel/arch/alpha/locore.s : 1741
  8 thread_dup           src/kernel/arch/alpha/pcb.c : 638
  9 itpsa_hba_go         src/kernel/io/cam/iti/itpsacfg.c : 744


PROBLEM: (84468) (PATCH ID: OSF510-217)
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This patch fixes panics associated when multiple KZPCA-AA and/or
KZPCM-AA host bus adapters are in the system.  Expected panic string
is "sc ws remove: SZ_IN_USE NOT set".
This patch fixes kernel memory faults, and/or I/O hangs with
systems that have KZPCM-AA and/or KZPCA-AA.  These errors can
occur during large data transfers.


PROBLEM: (86450, 87586, 87657, none) (PATCH ID: OSF510-286)
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  This patch fixes a panic in the itpsa driver. It is
  seen when an abort to the SCSI rewind command is issued.
  The problem is a result of the TLZ10 not responding
  to selections while performing a rewind.
  The panic string will look as follows:

    "xpt_callback: callback on freed CCB"


PROBLEM: (88231) (PATCH ID: OSF510-417)
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Frequent SCSI bus resets on a KZPCA HBA may cause the following panic:
   PANIC: "sc ws remove: SZ_IN_USE NOT set"

with the following typical stack trace:

crash> tf
>  0 boot                 src/kernel/arch/alpha/machdep.c : 2644
   1 panic                src/kernel/bsd/subr_prf.c : 1401
   2 ss_finish(SIM_WS *sws)   src/kernel/io/cam/sim_sched.c : 1493
   3 sm_bus_free(SIM_WS *sws) src/kernel/io/cam/sim_sm.c : 616
   4 itpsa_cfgAsStart(CCB_SCSIIO *ccb_scsiio)     
			  src/kernel/io/cam/iti/itpsacfg.c : 1840
   5 itpsa_asStart        src/kernel/io/cam/iti/itpsa.c : 5901
   6 itpsa_procIntr       src/kernel/io/cam/iti/itpsa.c : 2792
   7 itpsaintr            src/kernel/io/cam/iti/itpsa.c : 2914
   8 _XentInt             src/kernel/arch/alpha/locore.s : 1586


PROBLEM: (83699, 81531) (PATCH ID: OSF510-516)
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Fixes a kernel memory fault panic during boot process while probing SCSI bus


PROBLEM: (GB_G02141) (PATCH ID: OSF510-515)
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This patch fixes a kernel memory fault panic after an "ITPSA: itpsa_action -
error converting path ID to ITPSA softc structure" message.
This is caused because the error logger tries to use a pointer to a data
structure which is not valid.