Thats' the essence of what I had happen several days ago (the machine 
     had been running for 64 days).  I found in the archives for this forum 
     a discussion about bad SIMM's leading to a simlar message (although 
     the specific code was not mentioned), but I would not think either of 
     my 2 32MB SIMM's would only fail once in 8 months -- ??
     
     Following are the uerf ouput and crash-data.0 file (BTW, I'm puzzled 
     why the crash-data.o file has a bunch of messages about the /misc fs 
     being full -- before and after the crash it has had around 140MB 
     available, although holding the /users -- about 4 or 5 active with  
     Oracle db development and/or Web browsing ;-} -- directories it could 
     get filled at any time since I don't have quotas enabled, however, 
     /tmp and oracle are in separate fs's -- ??).
     
     TIA,
     Rory O'Connor    
     Reply-To:  rory_o'connor_at_us.wfl.com
     
     =====================================================================
     
     usaxplj/root >uerf -R -o full -t s:15-aug-1996,17:00:00 
     e:15-aug-1996,19:45:00       
                                                       uerf version 4.2-011 
     (122)
     
     
     ********************************* ENTRY     1. ***********************
     
     ----- EVENT INFORMATION -----
     
     EVENT CLASS                             ERROR EVENT 
     OS EVENT TYPE                  302.     PANIC 
     SEQUENCE NUMBER                  2.
     OPERATING SYSTEM                        DEC OSF/1 
     OCCURRED/LOGGED ON                      Thu Aug 15 19:44:15 1996
     OCCURRED ON SYSTEM                      usaxp1j 
     SYSTEM ID                 x0006000D     CPU TYPE:  DEC 7000 
     SYSTYPE                   x00000000
     MESSAGE                                 panic (cpu 0): Machine check - 
                                              _Hardware error 
     
     ********************************* ENTRY     2. ***********************
     
     ----- EVENT INFORMATION -----
     
     EVENT CLASS                             ERROR EVENT 
     OS EVENT TYPE                  100.     CPU EXCEPTION 
     SEQUENCE NUMBER                  1.
     OPERATING SYSTEM                        DEC OSF/1 
     OCCURRED/LOGGED ON                      Thu Aug 15 19:44:15 1996
     OCCURRED ON SYSTEM                      usaxp1j 
     SYSTEM ID                 x0006000D     CPU TYPE:  DEC 7000 
     SYSTYPE                   x00000000
     
     ----- UNIT INFORMATION -----
     
     UNIT CLASS                              CPU 
     
     =====================================================================
     
#
# Crash Data Collection (Version 1.4) 
#
_crash_data_collection_time: Thu Aug 15 19:50:21 EDT 1996 
_current_directory: /
_crash_kernel: /var/adm/crash/vmunix.0 
_crash_core: /var/adm/crash/vmcore.0 
_crash_arch: alpha
_crash_os: Digital UNIX
_host_version: Digital UNIX V3.2C  (Rev. 148); Thu Feb  1 17:54:31 EST 1996 
_crash_version: Digital UNIX V3.2C  (Rev. 148); Thu Feb  1 17:54:31 EST 1996
     
_crashtime:  struct {
    tv_sec = 840152655
    tv_usec = 311344
}
_boottime:  struct {
    tv_sec = 834587541
    tv_usec = 491904
}
_config:  struct {
    sysname = "OSF1"
    nodename = "usaxp1j.glaxo.com"
    release = "V3.2"
    version = "148"
    machine = "alpha"
}
_cpu:  37
_system_string:  0xffffffffff8009e8 = "AlphaStation 200 4/233" 
_ncpus:  1
_avail_cpus:  1
_partial_dump:  1
_physmem(MBytes):  63
_panic_string:  0xfffffc00004f1010 = "Machine check - Hardware error" 
_paniccpu:  0
_panic_thread:  0xfffffc000225fb80
_preserved_message_buffer_begin:
struct {
    msg_magic = 0x63061
    msg_bufx = 0x88a
    msg_bufr = 0xfdb
    msg_bufc = "ine check type 0x670.
Machine check abort
  retry         = 0x0
  mchk_code     = 0x92
  paltemp[1]    = 0x4000e000
  paltemp[2]    = 0x4
  paltemp[3]    = 0x546c3b
  paltemp[4]    = 0x2400020
  paltemp[5]    = 0x0
  paltemp[6]    = 0x1
  paltemp[7]    = 0x4200
  paltemp[8]    = 0x400
  paltemp[9]    = 0x0
  paltemp[10]   = 0x3e6aa0
  paltemp[11]   = 0x0
  paltemp[12]   = 0x3e6e40
  paltemp[13]   = 0x3e6e70
  paltemp[14]   = 0x3e6ed0
  paltemp[15]   = 0x3e6c40
  paltemp[16]   = 0x3e6950
  paltemp[17]   = 0x0
  paltemp[18]   = 0x1ffffb20
  paltemp[19]   = 0x842c7a58
  paltemp[20]   = 0x5202b0
  paltemp[21]   = 0x0
  paltemp[22]   = 0x727a7a7a
  paltemp[23]   = 0x40
  paltemp[24]   = 0x0
  paltemp[25]   = 0x10000
  paltemp[26]   = 0x0
  paltemp[27]   = 0x0
  paltemp[28]   = 0x345c000
  paltemp[29]   = 0x0
  paltemp[30]   = 0x1
  paltemp[31]   = 0x3ac9a58
  exc_addr      = 0x80343c22
  exc_sum       = 0x0
  msk           = 0x0
  pal_base      = 0x14000
  hirr          = 0x0
  hier          = 0x14f0
  mm_csr        = 0x1680
  va            = 0x6170
  biu_addr      = 0x3856f40
  biu_stat      = 0x1440
  dc_addr       = 0xffffffff
  fill_adr      = 0x3856f40
  dc_stat       = 0x3
  fill_syndrome = 0x1
  bc_tag        = 0x403813
  coma_gcr      = 0x7fb200a4
  coma_edsr     = 0x7fb2a140
  coma_ter      = 0x6fb1fff8
  coma_elar     = 0x6fb10000
  coma_ehar     = 0x6fb10800
  coma_ldlr     = 0x6fb16310
  coma_ldhr     = 0x6fb10018
  coma_base0    = 0x6fb10000
  coma_base1    = 0x6fb10080
  coma_base2    = 0x47ff0000
  coma_cnfg0    = 0x47ff004b
  coma_cnfg1    = 0x47ff004b
  coma_cnfg2    = 0x47ff0000
  epic_dcsr     = 0x8008001d
  epic_pear     = 0x804f00
  epic_sear     = 0xf93e10
  epic_tbr1     = 0x2ef000
  epic_tbr2     = 0x0
  epic_pbr1     = 0x8c0000
  epic_pbr2     = 0x40080000
  epic_pmr1     = 0x700000
  epic_pmr2     = 0x3ff00000
  epic_harx1    = 0x80000000
  epic_harx2    = 0x0
  epic_pmlt     = 0xff
  epic_tag0     = 0x812000
  epic_tag1     = 0x814000
  epic_tag2     = 0x804000
  epic_tag3     = 0x801000
  epic_tag4     = 0x807000
  epic_tag5     = 0x803000
  epic_tag6     = 0x805000
  epic_tag7     = 0x802000
  epic_data0    = 0x3066
  epic_data1    = 0x36e8
  epic_data2    = 0x576
  epic_data3    = 0x572
  epic_data4    = 0x578
  epic_data5    = 0x574
  epic_data6    = 0x576
  epic_data7    = 0x574
panic (cpu 0): Machine check - Hardware error
syncing disks... DUMP.prom: dev SCSI 0 6 0 5 500 0 0, block 131072 
DUMP.prom: dev SCSI 0 6 0 5 500 0 0, block 131072
ile system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>/misc: file system full
<3>rz1: using ULTRIX partition info found on disk. 
<3>rz1: using ULTRIX partition info found on disk. 
Alpha PC mach"
}
_preserved_message_buffer_end:
_kernel_process_status_begin:
  PID   COMM
00000   kernel idle
00001   init
00009   kloadsrv
29723   maid.OSF1V2.0.re
00028   vold
10272   tnslsnr
00054   update
07234   lpd
12384   xterm
00154   syslogd
00156   binlogd
31926   xdm
13497   xdm
00192   dxpause
03269   oraweb
29899   oraweb
03277   maid.OSF1V2.0.re
00208   routed
12508   xterm
28915   csh
00265   telnetd
00271   ksh
00283   portmap
00285   nfsiod
00286   nfsiod
00287   nfsiod
00288   nfsiod
00289   nfsiod
00290   nfsiod
00291   nfsiod
14644   nsrd
14651   nsrmmdbd
00329   dxconsole
14671   nsrmmd
31056   smbd
00341   sendmail
14679   nsrindexd
00345   sh
32093   smbd
00359   dxsession
00386   dxterm
00389   snmpd
00391   dxclock
00424   inetd
00429   cron
32202   ksh
00465   smbd
00467   nmbd
12762   ksh
12779   iostat
01557   csh
00534   getty
00536   getty
32352   smbd
32364   telnetd
32393   csh
01712   more
14006   dxsession
14007   Xsession
14011   ksh
00721   telnetd
14035   sh
14036   dxconsole
14038   top
14040   ksh
14041   mwm
14044   dxterm
32480   telnetd
01786   telnet
00770   csh
00778   telnetd
27411   oracle
00793   getty
30506   oracle
30548   oracle
13145   Xdec
30568   oracle
32626   csh
32633   dxterm
01922   lynx
30605   Xsession
30614   mwm
29635   oracle
05113   xdm
_kernel_process_status_end:
_current_pid:  192
_current_tid:  0xfffffc000225fb80
_proc_thread_list_begin:
thread 0xfffffc000225fb80 stopped at  [boot:1735 ,0xfffffc00003e9dbc]    Source 
not avail
able
_proc_thread_list_end:
_dump_begin:
>  0 boot(0x0, 0x4, 0x20000088, 0x24000388, 0x1) 
["../../../../src/kernel/arch/alpha/mach 
dep.c":1735, 0xfffffc00003e9dbc]
     
   1 panic(s = 0xfffffc00004e6740 = "thread_block: interrupt level call")
["../../../../s
rc/kernel/bsd/subr_prf.c":673, 0xfffffc00003aa868] 
pcpu = 0x1
i = 5374640
bootopt = 3841340
mycpu = 1
spl = 5
prevcc = 516
nextcc = 0
timer = -4398042669800
limit = -4398041368872
     
   2 thread_block() ["../../../../src/kernel/kern/sched_prim.c":1740,
0xfffffc00003dc768]
thread = 0xfffffc000225fb80
new_thread = 0xfffffc000225fb80
mycpu = 0
myprocessor = (nil)
s = 5
pset = 0xfffffc00003df024
prev = 0x670
     
   3 thread_preempt(thread = 0xfffffc000225fb80, processor =
0xfffffc0000148100) ["../../
../../src/kernel/kern/sched_prim.c":3465, 0xfffffc00003df03c] 
s = 2
pri = 4103280
pset = 0xfffffc0000556ed8
     
   4 boot(0x0, 0x0, 0xfffffc00004f1010, 0x16, 0x34)
["../../../../src/kernel/arch/alpha/m 
achdep.c":1679, 0xfffffc00003e9c94]
     
   5 panic(s = 0xfffffc00004f1010 = "Machine check - Hardware error")
["../../../../src/k
ernel/bsd/subr_prf.c":757, 0xfffffc00003aaa24] 
pcpu = 0xfffffc00005be030
i = 4256900
bootopt = 7
mycpu = 1
spl = 7
prevcc = 18446739675663065104
nextcc = 18446739675663065088
timer = -4398042253920
limit = 4072
     
   6 kn25_machcheck(0x670, 0xfffffc0000006000, 0xffffffff842c7950, 0x11ffffbc8,
0x0) ["..
/../../../src/kernel/arch/alpha/hal/kn25.c":1191, 0xfffffc000040f5a8]
     
   7 mach_error(0xffffffff842c4000, 0xfffffc0000006000, 0xffffffff842c7950,
0x7, 0x3) [".
./../../../src/kernel/arch/alpha/hal/cpusw.c":795, 0xfffffc00004055b4]
     
   8 _XentInt(0x8, 0x3ff80343c20, 0x1400089d0, 0x140015900, 0x2400020)
["../../../../src/
kernel/arch/alpha/locore.s":997, 0xfffffc00003e6bac]
     
_dump_end:
     
warning: Files compiled -g3: parameter values probably wrong 
_kernel_thread_list_begin:
thread 0xfffffc0003fce000 stopped at   [thread_run:2274 ,0xfffffc00003dd284]
 Source n
ot available
thread 0xfffffc0003fce400 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003f8e800 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003f8ec00 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003f8f000 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003f8f400 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003f8f800 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003ece400 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003ece800 stopped at   [thread_block:1906 ,0xfffffc00003dca98]
 Source n
ot available
thread 0xfffffc0003ecec00 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003ecf000 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003ecf400 stopped at   [thread_block:1906 ,0xfffffc00003dca98]
 Source n
ot available
thread 0xfffffc0003ecf800 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003ecfc00 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003a92000 stopped at   [thread_block:1891 
+0x28,0xfffffc00003dca28]
Source not available
thread 0xfffffc0003a92c00 stopped at   [thread_block:1906 ,0xfffffc00003dca98]
 Source n
ot available
thread 0xfffffc0003f8fc00 stopped at   [thread_block:1906 ,0xfffffc00003dca98]
 Source n
ot available
_kernel_thread_list_end:
_savedefp:  (nil)
_kernel_memory_fault_data_begin:
struct {
    fault_va = 0x0
    fault_pc = 0x0
    fault_ra = 0x0
    fault_sp = 0x0
    access = 0x0
    status = 0x0
    cpunum = 0x0
    count = 0x0
    pcb = (nil)
    thread = (nil)
    task = (nil)
    proc = (nil)
}
_kernel_memory_fault_data_end:
Invalid character in input
_uptime: 1545.86 hours
     
paniccpu: 0x0
machine_slot[paniccpu]: struct {
    is_cpu = 0x1
    cpu_type = 0xf
    cpu_subtype = 0xd
    running = 0x1
    cpu_ticks = {
        [0] 0x39e7095
        [1] 0x4adefd
        [2] 0x89347af
        [3] 0x1340c9bee
        [4] 0x1321ba10
    }
    clock_freq = 0x400
    error_restart = 0x0
    cpu_panicstr = 0xfffffc00004f1010 = "Machine check - Hardware error" 
    cpu_panic_thread = 0xfffffc000225fb80
}
tset machine_slot[paniccpu].cpu_panic_thread:
Begin Trace for machine_slot[paniccpu].cpu_panic_thread: 
>  0 boot(0x0, 0x4, 0x20000088, 0x24000388, 0x1) 
["../../../../src/kernel/arch/alpha/mach
dep.c":1735, 0xfffffc00003e9dbc]
   1 panic(s = 0xfffffc00004e6740 = "thread_block: interrupt level call")
["../../../../s
rc/kernel/bsd/subr_prf.c":673, 0xfffffc00003aa868]
   2 thread_block() ["../../../../src/kernel/kern/sched_prim.c":1740,
0xfffffc00003dc768]
   3 thread_preempt(thread = 0xfffffc000225fb80, processor =
0xfffffc0000148100) ["../../
../../src/kernel/kern/sched_prim.c":3465, 0xfffffc00003df03c]
   4 boot(0x0, 0x0, 0xfffffc00004f1010, 0x16, 0x34)
["../../../../src/kernel/arch/alpha/m 
achdep.c":1679, 0xfffffc00003e9c94]
   5 panic(s = 0xfffffc00004f1010 = "Machine check - Hardware error")
["../../../../src/k
ernel/bsd/subr_prf.c":757, 0xfffffc00003aaa24]
   6 kn25_machcheck(0x670, 0xfffffc0000006000, 0xffffffff842c7950, 0x11ffffbc8,
0x0) ["..
/../../../src/kernel/arch/alpha/hal/kn25.c":1191, 0xfffffc000040f5a8]
   7 mach_error(0xffffffff842c4000, 0xfffffc0000006000, 0xffffffff842c7950,
0x7, 0x3) [".
./../../../src/kernel/arch/alpha/hal/cpusw.c":795, 0xfffffc00004055b4]
   8 _XentInt(0x8, 0x3ff80343c20, 0x1400089d0, 0x140015900, 0x2400020)
["../../../../src/
kernel/arch/alpha/locore.s":997, 0xfffffc00003e6bac] 
End Trace for machine_slot[paniccpu].cpu_panic_thread:
     
"cpu_data" is not an array
_stack_trace[0]_begin:
>  0 boot(0x0, 0x4, 0x20000088, 0x24000388, 0x1) 
["../../../../src/kernel/arch/alpha/mach 
dep.c":1735, 0xfffffc00003e9dbc]
   1 panic(s = 0xfffffc00004e6740 = "thread_block: interrupt level call")
["../../../../s
rc/kernel/bsd/subr_prf.c":673, 0xfffffc00003aa868]
   2 thread_block() ["../../../../src/kernel/kern/sched_prim.c":1740,
0xfffffc00003dc768]
   3 thread_preempt(thread = 0xfffffc000225fb80, processor =
0xfffffc0000148100) ["../../
../../src/kernel/kern/sched_prim.c":3465, 0xfffffc00003df03c]
   4 boot(0x0, 0x0, 0xfffffc00004f1010, 0x16, 0x34)
["../../../../src/kernel/arch/alpha/m 
achdep.c":1679, 0xfffffc00003e9c94]
   5 panic(s = 0xfffffc00004f1010 = "Machine check - Hardware error")
["../../../../src/k
ernel/bsd/subr_prf.c":757, 0xfffffc00003aaa24]
   6 kn25_machcheck(0x670, 0xfffffc0000006000, 0xffffffff842c7950, 0x11ffffbc8,
0x0) ["..
/../../../src/kernel/arch/alpha/hal/kn25.c":1191, 0xfffffc000040f5a8]
   7 mach_error(0xffffffff842c4000, 0xfffffc0000006000, 0xffffffff842c7950,
0x7, 0x3) [".
./../../../src/kernel/arch/alpha/hal/cpusw.c":795, 0xfffffc00004055b4]
   8 _XentInt(0x8, 0x3ff80343c20, 0x1400089d0, 0x140015900, 0x2400020)
["../../../../src/
kernel/arch/alpha/locore.s":997, 0xfffffc00003e6bac] 
_stack_trace[0]_end:
/usr/bin/crashdc: /bin/kdbx: not found 
#
_crash_data_collection_finished:
     
---------------  Start RFC822 Headers  --------------- 
Received on Mon Aug 19 1996 - 19:14:25 NZST