[Info-vax] FREWSLX Alpha 7.3-2

abrsvc dansabrservices at yahoo.com
Thu Apr 26 06:49:54 EDT 2012


On Thursday, April 26, 2012 2:52:31 AM UTC-4, Richard wrote:
> On Apr 26, 2:21 pm, s... at obanion.us wrote:
> > On Wednesday, April 25, 2012 6:52:57 PM UTC-7, Richard wrote:
> > > Folks,
> >
> > > Hoping someone out there still looks at this group :-)
> > > Any thoughts on whether and what tuning we need to avoid a repeat of
> > > this crash?
> >
> > Google found a thread for Alpha 8.2, concerning a similar crash when the SYSTEM account was running Monitor:http://unix.derkeiler.com/Newsgroups/comp.os.vms/2006-08/msg02017.html
> >
> > And Volker Halle suggesting:
> >
> > "This code in the pagefault handler is trying to free a working set list
> > entry, to re-use it to bring in the page about to be faulted into
> > memory. It cannot find any WSLE (working set list entry), which it can
> > free up - after trying hard. Most of the WSLEs are probably somehow
> > locked in the workingset.
> >
> > Your system may be a little bit low on memory. You may want to try to
> > increase the working set quota for user SYSTEM, who was running
> > MONITOR.
> >
> > You can verify my analysis with
> >
> > SDA> SHOW PROC/WORKING
> >
> > and see, if you can find a WSL entry, which could have been freed ;-)"
> >
> > When I last worked on Alpha 4100s, we usually ran it with 2 to 4 GB of memory, so the 1 GB you have might be a little low...
> >
> > Sean
> 
> Thanks Sean,
> 
> There is plenty of memory free, and we've been running this program
> for years, and in this SYSMWCNT value as well.
> We've just switched from a physical Alpha 4100 to a Charon_AXP 4100,
> same memory etc, about 4 weeks ago, and this program runs daily.
> 
> Attached is the output from the crash dump, SHOW PROC/WORKING and SHOW
> WORKING
> 
> 
> TSG_RW_BA1090> ana/crash sys$system:sysdump.dmp
> %SDA-I-SINGLEMEM, single member shadow set; accessing dump file via
> _DSA7459:
> 
> OpenVMS (TM) system dump analyzer
> ...analyzing an Alpha compressed selective memory dump...
> 
> Dump taken on 17-APR-2012 22:30:59.16
> FREWSLX, Free working set list index, resource wait
> 
> SDA> show proc/working
> Process index: 0022   Name: BATCH_1184        Extended PID: 2242D9A2
> --------------------------------------------------------------------
> 
> 
> Working set information
> -----------------------
> 
> First WSL entry          00000001   Current authorized working set
> size   2308
> First locked entry       00000008   Default (initial) working set
> size    1154
> First dynamic entry      0000000D   Maximum working set allowed
> (quota)   2308
> Last entry replaced      00000050
> Last entry in list       00000482
> 
> 
> Working set list
> ----------------
> 
>          INDEX          ADDRESS           STATUS
> 
>         00000001   FFFFFEFD.BF6FC000    VALID PPT(L1) WSLOCK
>         00000002   FFFFFEFD.BF000000    VALID PPT(L2) WSLOCK
>         00000003   FFFFFEFC.001FE000    VALID PPT(L3) WSLOCK
>         00000004   00000000.7FF86000    VALID PROCESS MODIFIED WSLOCK
>         00000005   00000000.7FF84000    VALID PROCESS MODIFIED WSLOCK
>         00000006   00000000.7FFF0000    VALID PROCESS WSLOCK
>         00000007   FFFFFFFF.856A6000    VALID PHD     WSLOCK
> 
> Locked entries:
>         00000008   FFFFFEFE.01888000    VALID PHD     WSLOCK
>         00000009   FFFFFEFE.0188A000    VALID PHD     WSLOCK
>         0000000A   00000000.7AFA8000    VALID PROCESS WSLOCK
>         0000000B   00000000.7AFAA000    VALID PROCESS WSLOCK
>         0000000C   00000000.7AFAC000    VALID PROCESS WSLOCK
> 
> Dynamic entries:
> 
>          ----  2 entries not displayed
> 
>         0000000F   FFFFFEFC.001EC000    VALID PPT(L3) WSLOCK
>         00000010   FFFFFEFC.001EA000    VALID PPT(L3) WSLOCK
> 
>          ----  1 entry not displayed
> 
>         00000012   00000000.7FFCE000    VALID PROCESS
> 
>          ----  4 entries not displayed
> 
>         00000017   00000000.7FFD0000    VALID PROCESS MODIFIED
> 
>          ----  10 entries not displayed
> 
>         00000022   00000000.7FFCC000    VALID PROCESS
> 
>          ----  2 entries not displayed
> 
>         00000025   00000000.7FF3A000    VALID PROCESS
> 
> 
>     Press RETURN for more.
> SDA>
> Process index: 0022   Name: BATCH_1184        Extended PID: 2242D9A2
> --------------------------------------------------------------------
> 
>          INDEX          ADDRESS           STATUS
> 
>          ----  6 entries not displayed
> 
>         0000002C   00000000.7ADF2000    VALID PROCESS
> 
>          ----  5 entries not displayed
> 
>         00000032   00000000.7B608000    VALID GLOBAL
>         00000033   00000000.7B5EC000    VALID GLOBAL
> 
>          ----  28 entries not displayed
> 
>         00000050   00000000.7B5EE000    VALID GLOBAL
> 
>          ----  6 entries not displayed
> 
>         00000057   00000000.7AEFE000    VALID PROCESS
> 
>          ----  2 entries not displayed
> 
>         0000005A   00000000.7AF04000    VALID PROCESS
> 
>          ----  2 entries not displayed
> 
>         0000005D   00000000.7AF88000    VALID PROCESS
> 
>          ----  9 entries not displayed
> 
>         00000067   00000000.7AE56000    VALID GLOBAL
> 
>          ----  3 entries not displayed
> 
>         0000006B   00000000.7FF9C000    VALID PROCESS
> 
>          ----  5 entries not displayed
> 
>         00000071   00000000.7FFA4000    VALID PROCESS
> 
>          ----  20 entries not displayed
> 
>         00000086   00000000.00084000    VALID PROCESS
> 
>          ----  15 entries not displayed
> 
>         00000096   00000000.7AF02000    VALID PROCESS
> 
>          ----  4 entries not displayed
> 
>         0000009B   FFFFFEFC.00000000    VALID PPT(L3) WSLOCK
> 
>          ----  69 entries not displayed
> 
>         000000E1   00000000.00010000    VALID PROCESS
> 
>     Press RETURN for more.
> SDA>
> Process index: 0022   Name: BATCH_1184        Extended PID: 2242D9A2
> --------------------------------------------------------------------
> 
>          INDEX          ADDRESS           STATUS
> 
> 
>          ----  1 entry not displayed
> 
>         000000E3   00000000.7B5EA000    VALID GLOBAL
> 
>          ----  2 entries not displayed
> 
>         000000E6   00000000.00012000    VALID PROCESS
> 
>          ----  1 entry not displayed
> 
>         000000E8   00000000.00094000    VALID PROCESS
>         000000E9   00000000.7FF70000    VALID PROCESS
> 
>          ----  2 entries not displayed
> 
>         000000EC   00000000.00020000    VALID PROCESS
> 
>          ----  2 entries not displayed
> 
>         000000EF   00000000.00082000    VALID PROCESS
> 
>          ----  7 entries not displayed
> 
>         000000F7   00000000.7B5F8000    VALID PROCESS
> 
>          ----  907 entries not displayed
> 
> 
> SDA>
> SDA> show working
> System Working Set
> ------------------
> 
> 
> Working set information
> -----------------------
> 
> First WSL entry          00000001   Current authorized working set
> size   276
> First locked entry       00000001   Default (initial) working set
> size    276
> First dynamic entry      00000001   Maximum working set allowed
> (quota)   276
> Last entry replaced      000000D7
> Last entry in list       00000113
> 
> 
> Working set list
> ----------------
> 
>          INDEX          ADDRESS           STATUS
> 
> 
> Locked entries:
> 
> Dynamic entries:
>         00000001   FFFFFFFF.858D2000    VALID SYSTEM
>         00000002   FFFFFFFF.85836000    VALID SYSTEM
>         00000003   FFFFFFFF.85928000    VALID SYSTEM
>         00000004   FFFFFFFF.858B6000    VALID SYSTEM
>         00000005   FFFFFFFF.858CE000    VALID SYSTEM
>         00000006   FFFFFFFF.858EE000    VALID SYSTEM
>         00000007   FFFFFFFF.85902000    VALID SYSTEM
>         00000008   FFFFFFFF.85910000    VALID SYSTEM
>         00000009   FFFFFFFF.85932000    VALID SYSTEM
>         0000000A   FFFFFFFF.85860000    VALID SYSTEM
>         0000000B   FFFFFFFF.858AC000    VALID SYSTEM
>         0000000C   FFFFFFFF.85916000    VALID SYSTEM
>         0000000D   FFFFFFFF.8587E000    VALID SYSTEM
>         0000000E   FFFFFFFF.8589E000    VALID SYSTEM
>         0000000F   FFFFFFFF.858D6000    VALID SYSTEM
>         00000010   FFFFFFFF.858F6000    VALID SYSTEM
>         00000011   FFFFFFFF.85918000    VALID SYSTEM
>         00000012   FFFFFFFF.85826000    VALID SYSTEM
>         00000013   FFFFFFFF.858A0000    VALID SYSTEM
>         00000014   FFFFFFFF.858D8000    VALID SYSTEM
>         00000015   FFFFFFFF.85880000    VALID SYSTEM
>         00000016   FFFFFFFF.858F8000    VALID SYSTEM
>         00000017   FFFFFFFF.8591A000    VALID SYSTEM
>         00000018   FFFFFFFF.858A2000    VALID SYSTEM
>         00000019   FFFFFFFF.858DA000    VALID SYSTEM
>         0000001A   FFFFFFFF.8588E000    VALID SYSTEM
>         0000001B   FFFFFFFF.858FA000    VALID SYSTEM
>         0000001C   FFFFFFFF.85882000    VALID SYSTEM
>         0000001D   FFFFFFFF.8591C000    VALID SYSTEM
>         0000001E   FFFFFFFF.858DE000    VALID SYSTEM
>         0000001F   FFFFFFFF.8589A000    VALID SYSTEM
>         00000020   FFFFFFFF.858F2000    VALID SYSTEM
>         00000021   FFFFFFFF.85958000    VALID SYSTEM
>         00000022   FFFFFFFF.858E6000    VALID SYSTEM
> 
>     Press RETURN for more.
> SDA>
> System Working Set
> ------------------
> 
>          INDEX          ADDRESS           STATUS
> 
>         00000023   FFFFFFFF.85810000    VALID SYSTEM
>         00000024   FFFFFFFF.85900000    VALID SYSTEM
>         00000025   FFFFFFFF.85824000    VALID SYSTEM
>         00000026   FFFFFFFF.8580A000    VALID SYSTEM
>         00000027   FFFFFFFF.85834000    VALID SYSTEM
>         00000028   FFFFFFFF.85812000    VALID SYSTEM
>         00000029   FFFFFFFF.8580C000    VALID SYSTEM
>         0000002A   FFFFFFFF.858BA000    VALID SYSTEM
>         0000002B   FFFFFFFF.85840000    VALID SYSTEM
>         0000002C   FFFFFFFF.857CE000    VALID SYSTEM
>         0000002D   FFFFFFFF.85828000    VALID SYSTEM
>         0000002E   FFFFFFFF.8583A000    VALID SYSTEM
>         0000002F   FFFFFFFF.856FE000    VALID SYSTEM
>         00000030   FFFFFFFF.8575A000    VALID SYSTEM
>         00000031   FFFFFFFF.85766000    VALID SYSTEM
>         00000032   FFFFFFFF.857BA000    VALID SYSTEM
>         00000033   FFFFFFFF.85854000    VALID SYSTEM
>         00000034   FFFFFFFF.856FC000    VALID SYSTEM
>         00000035   FFFFFFFF.857FA000    VALID SYSTEM
>         00000036   FFFFFFFF.858C6000    VALID SYSTEM
>         00000037   FFFFFFFF.856F6000    VALID SYSTEM
>         00000038   FFFFFFFF.8584E000    VALID SYSTEM
>         00000039   FFFFFFFF.85954000    VALID SYSTEM
>         0000003A   FFFFFFFF.8584C000    VALID SYSTEM
>         0000003B   FFFFFFFF.8584A000    VALID SYSTEM
>         0000003C   FFFFFFFF.85846000    VALID SYSTEM
>         0000003D   FFFFFFFF.85848000    VALID SYSTEM
>         0000003E   FFFFFFFF.85844000    VALID SYSTEM
>         0000003F   FFFFFFFF.857CA000    VALID SYSTEM
>         00000040   FFFFFFFF.8583E000    VALID SYSTEM
>         00000041   FFFFFFFF.85856000    VALID SYSTEM
>         00000042   FFFFFFFF.8583C000    VALID SYSTEM
>         00000043   FFFFFFFF.85832000    VALID SYSTEM
>         00000044   FFFFFFFF.85830000    VALID SYSTEM
>         00000045   FFFFFFFF.8582E000    VALID SYSTEM
>         00000046   FFFFFFFF.85818000    VALID SYSTEM
>         00000047   FFFFFFFF.8582C000    VALID SYSTEM
>         00000048   FFFFFFFF.8582A000    VALID SYSTEM
>         00000049   FFFFFFFF.857F0000    VALID SYSTEM
>         0000004A   FFFFFFFF.85820000    VALID SYSTEM
>         0000004B   FFFFFFFF.8581E000    VALID SYSTEM
>         0000004C   FFFFFFFF.85804000    VALID SYSTEM
>         0000004D   FFFFFFFF.85800000    VALID SYSTEM
>         0000004E   FFFFFFFF.857FE000    VALID SYSTEM
>         0000004F   FFFFFFFF.857FC000    VALID SYSTEM
>         00000050   FFFFFFFF.857E8000    VALID SYSTEM
>         00000051   FFFFFFFF.857E2000    VALID SYSTEM
>         00000052   FFFFFFFF.857F8000    VALID SYSTEM
>         00000053   FFFFFFFF.85944000    VALID SYSTEM
>         00000054   FFFFFFFF.857F4000    VALID SYSTEM
>         00000055   FFFFFFFF.857F2000    VALID SYSTEM
>         00000056   FFFFFFFF.857EE000    VALID SYSTEM
> 
>     Press RETURN for more.
> SDA>
> System Working Set
> ------------------
> 
>          INDEX          ADDRESS           STATUS
> 
>         00000057   FFFFFFFF.85710000    VALID SYSTEM
>         00000058   FFFFFFFF.857EC000    VALID SYSTEM
>         00000059   FFFFFFFF.8594E000    VALID SYSTEM
>         0000005A   FFFFFFFF.857EA000    VALID SYSTEM
>         0000005B   FFFFFFFF.8570A000    VALID SYSTEM
>         0000005C   FFFFFFFF.85706000    VALID SYSTEM
>         0000005D   FFFFFFFF.857E6000    VALID SYSTEM
>         0000005E   FFFFFFFF.85950000    VALID SYSTEM
>         0000005F   FFFFFFFF.857E4000    VALID SYSTEM
>         00000060   FFFFFFFF.8571A000    VALID SYSTEM
>         00000061   FFFFFFFF.85924000    VALID SYSTEM
>         00000062   FFFFFFFF.8594A000    VALID SYSTEM
>         00000063   FFFFFFFF.85808000    VALID SYSTEM
>         00000064   FFFFFFFF.85712000    VALID SYSTEM
>         00000065   FFFFFFFF.85708000    VALID SYSTEM
>         00000066   FFFFFFFF.85704000    VALID SYSTEM
>         00000067   FFFFFFFF.858AA000    VALID SYSTEM
>         00000068   FFFFFFFF.85908000    VALID SYSTEM
>         00000069   FFFFFFFF.8586E000    VALID SYSTEM
>         0000006A   FFFFFFFF.85884000    VALID SYSTEM
>         0000006B   FFFFFFFF.85886000    VALID SYSTEM
>         0000006C   FFFFFFFF.8588A000    VALID SYSTEM
>         0000006D   FFFFFFFF.85894000    VALID SYSTEM
>         0000006E   FFFFFFFF.858A4000    VALID SYSTEM
>         0000006F   FFFFFFFF.8570E000    VALID SYSTEM
>         00000070   FFFFFFFF.858A6000    VALID SYSTEM
>         00000071   FFFFFFFF.85930000    VALID SYSTEM
>         00000072   FFFFFFFF.858BE000    VALID SYSTEM
>         00000073   FFFFFFFF.85934000    VALID SYSTEM
>         00000074   FFFFFFFF.858A8000    VALID SYSTEM
>         00000075   FFFFFFFF.85876000    VALID SYSTEM
>         00000076   FFFFFFFF.858C2000    VALID SYSTEM
>         00000077   FFFFFFFF.858CA000    VALID SYSTEM
>         00000078   FFFFFFFF.858E2000    VALID SYSTEM
>         00000079   FFFFFFFF.858EA000    VALID SYSTEM
>         0000007A   FFFFFFFF.858FE000    VALID SYSTEM
>         0000007B   FFFFFFFF.8586C000    VALID SYSTEM
>         0000007C   FFFFFFFF.85952000    VALID SYSTEM
>         0000007D   FFFFFFFF.8590C000    VALID SYSTEM
>         0000007E   FFFFFFFF.85922000    VALID SYSTEM
>         0000007F   FFFFFFFF.85904000    VALID SYSTEM
>         00000080   FFFFFFFF.858B0000    VALID SYSTEM
>         00000081   FFFFFFFF.858E0000    VALID SYSTEM
>         00000082   FFFFFFFF.8590A000    VALID SYSTEM
>         00000083   FFFFFFFF.8593E000    VALID SYSTEM
>         00000084   FFFFFFFF.85926000    VALID SYSTEM
>         00000085   FFFFFFFF.8594C000    VALID SYSTEM
>         00000086   FFFFFFFF.85938000    VALID SYSTEM
>         00000087   FFFFFFFF.8593A000    VALID SYSTEM
>         00000088   FFFFFFFF.8588C000    VALID SYSTEM
>         00000089   FFFFFFFF.856FA000    VALID SYSTEM
>         0000008A   FFFFFFFF.85868000    VALID SYSTEM
> 
>     Press RETURN for more.
> SDA>
> System Working Set
> ------------------
> 
>          INDEX          ADDRESS           STATUS
> 
>         0000008B   FFFFFFFF.8586A000    VALID SYSTEM
>         0000008C   FFFFFFFF.8585C000    VALID SYSTEM
>         0000008D   FFFFFFFF.8580E000    VALID SYSTEM
>         0000008E   FFFFFFFF.85850000    VALID SYSTEM
>         0000008F   FFFFFFFF.8581C000    VALID SYSTEM
>         00000090   FFFFFFFF.8571C000    VALID SYSTEM
>         00000091   FFFFFFFF.85806000    VALID SYSTEM
>         00000092   FFFFFFFF.85700000    VALID SYSTEM
>         00000093   FFFFFFFF.857DC000    VALID SYSTEM
>         00000094   FFFFFFFF.857E0000    VALID SYSTEM
>         00000095   FFFFFFFF.857DE000    VALID SYSTEM
>         00000096   FFFFFFFF.857B4000    VALID SYSTEM
>         00000097   FFFFFFFF.85714000    VALID SYSTEM
>         00000098   FFFFFFFF.8570C000    VALID SYSTEM
>         00000099   FFFFFFFF.856F8000    VALID SYSTEM
>         0000009A   FFFFFFFF.85912000    VALID SYSTEM
>         0000009B   FFFFFFFF.857AA000    VALID SYSTEM
>         0000009C   FFFFFFFF.85842000    VALID SYSTEM
>         0000009D   FFFFFFFF.85862000    VALID SYSTEM
>         0000009E   FFFFFFFF.85756000    VALID SYSTEM
>         0000009F   FFFFFFFF.8581A000    VALID SYSTEM
>         000000A0   FFFFFFFF.857DA000    VALID SYSTEM
>         000000A1   FFFFFFFF.8587A000    VALID SYSTEM
>         000000A2   FFFFFFFF.85702000    VALID SYSTEM
>         000000A3   FFFFFFFF.85852000    VALID SYSTEM
>         000000A4   FFFFFFFF.858DC000    VALID SYSTEM
>         000000A5   FFFFFFFF.85780000    VALID SYSTEM
>         000000A6   FFFFFFFF.85814000    VALID SYSTEM
>         000000A7   FFFFFFFF.857A4000    VALID SYSTEM
>         000000A8   FFFFFFFF.85878000    VALID SYSTEM
>         000000A9   FFFFFFFF.8592E000    VALID SYSTEM
>         000000AA   FFFFFFFF.85870000    VALID SYSTEM
>         000000AB   FFFFFFFF.858B4000    VALID SYSTEM
>         000000AC   FFFFFFFF.8585A000    VALID SYSTEM
>         000000AD   FFFFFFFF.85896000    VALID SYSTEM
>         000000AE   FFFFFFFF.85874000    VALID SYSTEM
>         000000AF   FFFFFFFF.858CC000    VALID SYSTEM
>         000000B0   FFFFFFFF.8592C000    VALID SYSTEM
>         000000B1   FFFFFFFF.85906000    VALID SYSTEM
>         000000B2   FFFFFFFF.858EC000    VALID SYSTEM
>         000000B3   FFFFFFFF.85764000    VALID SYSTEM
>         000000B4   FFFFFFFF.85760000    VALID SYSTEM
>         000000B5   FFFFFFFF.85936000    VALID SYSTEM
>         000000B6   FFFFFFFF.8593C000    VALID SYSTEM
>         000000B7   FFFFFFFF.857D8000    VALID SYSTEM
>         000000B8   FFFFFFFF.857B0000    VALID SYSTEM
>         000000B9   FFFFFFFF.858FC000    VALID SYSTEM
>         000000BA   FFFFFFFF.85816000    VALID SYSTEM
>         000000BB   FFFFFFFF.8591E000    VALID SYSTEM
>         000000BC   FFFFFFFF.857D0000    VALID SYSTEM
>         000000BD   FFFFFFFF.8578E000    VALID SYSTEM
>         000000BE   FFFFFFFF.857BE000    VALID SYSTEM
> 
>     Press RETURN for more.
> SDA>
> System Working Set
> ------------------
> 
>          INDEX          ADDRESS           STATUS
> 
>         000000BF   FFFFFFFF.85956000    VALID SYSTEM
>         000000C0   FFFFFFFF.857A8000    VALID SYSTEM
>         000000C1   FFFFFFFF.857AE000    VALID SYSTEM
>         000000C2   FFFFFFFF.85790000    VALID SYSTEM
>         000000C3   FFFFFFFF.857D6000    VALID SYSTEM
>         000000C4   FFFFFFFF.857F6000    VALID SYSTEM
>         000000C5   FFFFFFFF.8590E000    VALID SYSTEM
>         000000C6   FFFFFFFF.85768000    VALID SYSTEM
>         000000C7   FFFFFFFF.85864000    VALID SYSTEM
>         000000C8   FFFFFFFF.858C4000    VALID SYSTEM
>         000000C9   FFFFFFFF.8576C000    VALID SYSTEM
>         000000CA   FFFFFFFF.858E4000    VALID SYSTEM
>         000000CB   FFFFFFFF.85888000    VALID SYSTEM
>         000000CC   FFFFFFFF.857AC000    VALID SYSTEM
>         000000CD   FFFFFFFF.858E8000    VALID SYSTEM
>         000000CE   FFFFFFFF.85754000    VALID SYSTEM
>         000000CF   FFFFFFFF.85948000    VALID SYSTEM
>         000000D0   FFFFFFFF.8577A000    VALID SYSTEM
>         000000D1   FFFFFFFF.8589C000    VALID SYSTEM
>         000000D2   FFFFFFFF.858C8000    VALID SYSTEM
>         000000D3   FFFFFFFF.85784000    VALID SYSTEM
>         000000D4   FFFFFFFF.858B2000    VALID SYSTEM
>         000000D5   FFFFFFFF.857C0000    VALID SYSTEM
>         000000D6   FFFFFFFF.857D4000    VALID SYSTEM
>         000000D7   FFFFFFFF.857B8000    VALID SYSTEM
>         000000D8   FFFFFFFF.858B8000    VALID SYSTEM
>         000000D9   FFFFFFFF.858D0000    VALID SYSTEM
>         000000DA   FFFFFFFF.85942000    VALID SYSTEM
>         000000DB   FFFFFFFF.858F0000    VALID SYSTEM
>         000000DC   FFFFFFFF.85940000    VALID SYSTEM
>         000000DD   FFFFFFFF.8579E000    VALID SYSTEM
>         000000DE   FFFFFFFF.85774000    VALID SYSTEM
>         000000DF   FFFFFFFF.8578C000    VALID SYSTEM
>         000000E0   FFFFFFFF.85802000    VALID SYSTEM
>         000000E1   FFFFFFFF.85890000    VALID SYSTEM
>         000000E2   FFFFFFFF.86642000    VALID SYSTEM
>         000000E3   FFFFFFFF.86644000    VALID SYSTEM
>         000000E4   FFFFFFFF.86646000    VALID SYSTEM
>         000000E5   FFFFFFFF.8577E000    VALID SYSTEM
>         000000E6   FFFFFFFF.858AE000    VALID SYSTEM
>         000000E7   FFFFFFFF.85792000    VALID SYSTEM
>         000000E8   FFFFFFFF.857CC000    VALID SYSTEM
>         000000E9   FFFFFFFF.85892000    VALID SYSTEM
>         000000EA   FFFFFFFF.857A2000    VALID SYSTEM
>         000000EB   FFFFFFFF.8577C000    VALID SYSTEM
>         000000EC   FFFFFFFF.857BC000    VALID SYSTEM
>         000000ED   FFFFFFFF.8574E000    VALID SYSTEM
>         000000EE   FFFFFFFF.857C4000    VALID SYSTEM
>         000000EF   FFFFFFFF.8574A000    VALID SYSTEM
>         000000F0   FFFFFFFF.85946000    VALID SYSTEM
>         000000F1   FFFFFFFF.857C2000    VALID SYSTEM
>         000000F2   FFFFFFFF.85746000    VALID SYSTEM
> 
>     Press RETURN for more.
> SDA>
> System Working Set
> ------------------
> 
>          INDEX          ADDRESS           STATUS
> 
>         000000F3   FFFFFFFF.85786000    VALID SYSTEM
>         000000F4   FFFFFFFF.8595E000    VALID SYSTEM
>         000000F5   FFFFFFFF.8595C000    VALID SYSTEM
>         000000F6   FFFFFFFF.85762000    VALID SYSTEM
>         000000F7   FFFFFFFF.85770000    VALID SYSTEM
>         000000F8   FFFFFFFF.8576E000    VALID SYSTEM
>         000000F9   FFFFFFFF.8585E000    VALID SYSTEM
>         000000FA   FFFFFFFF.8575C000    VALID SYSTEM
>         000000FB   FFFFFFFF.8595A000    VALID SYSTEM
>         000000FC   FFFFFFFF.85778000    VALID SYSTEM
>         000000FD   FFFFFFFF.85794000    VALID SYSTEM
>         000000FE   FFFFFFFF.85752000    VALID SYSTEM
>         000000FF   FFFFFFFF.85744000    VALID SYSTEM
>         00000100   FFFFFFFF.8579C000    VALID SYSTEM
>         00000101   FFFFFFFF.85798000    VALID SYSTEM
>         00000102   FFFFFFFF.85776000    VALID SYSTEM
>         00000103   FFFFFFFF.85858000    VALID SYSTEM
>         00000104   FFFFFFFF.85914000    VALID SYSTEM
>         00000105   FFFFFFFF.8576A000    VALID SYSTEM
>         00000106   FFFFFFFF.85788000    VALID SYSTEM
>         00000107   FFFFFFFF.85866000    VALID SYSTEM
>         00000108   FFFFFFFF.857A6000    VALID SYSTEM
>         00000109   FFFFFFFF.85750000    VALID SYSTEM
>         0000010A   FFFFFFFF.85822000    VALID SYSTEM
>         0000010B   FFFFFFFF.85758000    VALID SYSTEM
>         0000010C   FFFFFFFF.85872000    VALID SYSTEM
>         0000010D   FFFFFFFF.8579A000    VALID SYSTEM
>         0000010E   FFFFFFFF.8587C000    VALID SYSTEM
>         0000010F   FFFFFFFF.858BC000    VALID SYSTEM
>         00000110   FFFFFFFF.858D4000    VALID SYSTEM
>         00000111   FFFFFFFF.858F4000    VALID SYSTEM
>         00000112   FFFFFFFF.85920000    VALID SYSTEM
>         00000113   FFFFFFFF.858C0000    VALID SYSTEM
> SDA>

This is a key:
" We've just switched from a physical Alpha 4100 to a Charon_AXP 4100, 
same memory etc, about 4 weeks ago, and this program runs daily. "

I would contact the vender here.  I would suspect the Charon code first.  Please provide the crash dump file to them for analysis.  This is more likely an emulation problem.

Dan



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