Sent from my iPhone
> On May 10, 2015, at 14:45, Timothe Litt <[email protected]> wrote: > >> On 10-May-15 14:14, Cory Smelosky wrote: >> >> Sent from my iPhone >> >>>> On May 10, 2015, at 13:32, Timothe Litt <[email protected]> wrote: >>>> >>>> On 10-May-15 13:07, Cory Smelosky wrote: >>>> Hey, >>>> >>>> Trying to figure out if this is an issue with the install or an >>>> obscure SIMH bug. >>>> >>>> PDP-10 simulator V4.0-0 Beta git commit id: 3b8c318b >>>> Listening on port 2020 >>>> >>>> BOOT> >>>> >>>> >>>> [PS MOUNTED] >>>> >>>> SETSPD: TERMINAL 1-40 SPEED 200 >>>> >>>> System restarting, wait...?INVALID CHARACTER IN NUMBER >>>> ENTER CURRENT DATE AND TIME: 10-MAY-2015 13:02 >>>> >>>> YOU HAVE ENTERED SUNDAY, 10-MAY-2015 1:02PM, >>>> IS THIS CORRECT (Y,N) Y >>>> WHY RELOAD? OPR >>>> RUN CHECKD? N >>>> >>>> RUNNING DDMP >>>> >>>> >>>> SYSJOB 5(23) STARTED AT 10-MAY-2015 1302 >>>> RUN SYS:ORION >>>> RUN SYS:QUASAR >>>> RUN SYS:MOUNTR >>>> RUN SYS:INFO >>>> RUN SYS:MAILER >>>> RUN SYS:MAPPER >>>> RUN SYS:LPTSPL >>>> RUN SYS:LPTSPL >>>> RUN SYS:CDRIVE >>>> RUN SYS:SPRINT >>>> JOB 0 /LOG OPERATOR XX OPERATOR >>>> ENA >>>> ^ESET LOGIN PSEUDO >>>> ^ESET LOGIN CONSOLE >>>> ^ESET OPERATOR >>>> PTYCON >>>> GET SYSTEM:PTYCON.ATO >>>> / >>>> JOB 1 /LOG OPERATOR XX OPERATOR >>>> ENA >>>> RUN SYS:BATCON >>>> / >>>> SJ 1: @LOG OPERATOR OPERATOR >>>> SJ 0: @LOG OPERATOR OPERATOR >>>> >>>> ********** >>>> *BUGHLT "ILMNRF" AT 10-May-2015 13: >>>> *JOB: 000000000002, USER: OPERATOR >>>> *ADDITIONAL DATA: 001000746144, 304000000000, 000000537375 >>>> ********** >>>> >>>> Config: >>>> >>>> set cpu idle >>>> set cpu tops-20 >>>> at rp0 tops20-ps-rp06-1.dsk >>>> at rp1 tops20-ps-rp06-2.dsk >>>> at rp2 tsu.dsk >>>> at dz0 2020 >>>> set tim y2k >>>> set console wru=6 >>>> boot rp0 >>>> >>>> I have applied the TSU01 4.1 update. >>>> >>>> Any ideas? It worked fine until I tried to build kermit. >>> This is the generic illegal memory reference in the monitor for >>> TOPS-20. Could be a reference to an unmapped page; a stray pointer, or >>> commonly a missing erjmp after a potentially unmapped reference. There >>> were lots of patches for various cases, but there's probably not a 'last >>> bug'. >> Ahhh. Wonder what caused it? All I recall doing before was building permit. >> >>> The additional data is the pagefail word, flags and pc. >>> >>> The only way to track it down is to get a crash dump and dig in. (You >>> might get a clue if you look at the PC with MDDT...) >> A bit difficult considering I can't get a successful boot. ;) >> >> SIMH's switch register cheat sheet? >> >>> You might also get a clue if you run spear on the error log. >> Again hindered by an inability to boot. ;) > Well, we know that TOPS-20 boots on SimH when built from scratch. > So the monitor or the disk was probably corrupted. > As usual, you aren't providing enough detail of exactly what you did and > how/when it fails. I must stop sending emails about issues before leaving the house! I had upgraded to TSU01 after installing distribution files and sed/sysdpy. I then defined DOC: in 4-1-config and built Kermit. > > While it could be a SimH issue, I'd start by assuming it's a monitor bug > and work backwards. > That's the only way to get close enough to identify an issue, wherever > it is. Would a fresh install work best to replicate as well? > > So you, or someone with TOPS-20 expertise can: > boot into EDDT and investigate > with dbugsw set, stop in MX and determine if one of the programs started > by MX or sysjob is triggering the bug. Since the fault is Job 2, that > seems likely. > set a breakpoint at the bughlt and backtrace. > boot an older version of the monitor (assuming you kept one) > generate a suitable patch. I hadn't built a new monitor - I kept the 2020 install tape one. I was too tired to remember the debug switch to the monitor executable. > > Or since you have backups of all your work, you can just build a new PS, > restore them and see what happens. Yeah. > > I don't have the time to debug this, but there are other folks on the > list who have the necessary skills. > > _______________________________________________ Simh mailing list [email protected] http://mailman.trailing-edge.com/mailman/listinfo/simh
