Re: Xephyr (on Linux host) and VMS keyboard

On 6/18/25 12:33, JKB wrote:

...
Thanks, I have set term/inquire in sys$login:login.com. Modification
done, but doesn't fix access violation error.
...

I didn't expect this to fix the ACCVIO. To me, it only proves that your login.com is being executed here.

$ analyze /process_dump DECW$WSINIT.DMP
Condition signalled to take dump:
%SYSTEM-F-ACCVIO, access violation, reason mask=01, virtual address=1211100F, PC
=80000010, PSL=03C00004
          OpenVMS VAX Debug Version V7.3-017
  DBG> examine/instruction 2147483664
2147483664:     CALLG    B^4(SP),(R1)
DBG> display reg
DBG>
  How can I display registers ?

You already know their exact contents from the register dump.
To match with the register dump and/or the above ACCVIO message:
DBG> set rad hex
To see all register contents
DBG> ex %r0:r15
The CALLG uses an argument list, which is on the stack. Maybe you can find something useful on the stack.

In the log file, is there any message about not being able to create a process dump?
>

  Nope 🙁

You connect to XDM on the VAX, correct? That is, DECW$WSINIT runs in the context of the TCPIP$XDM user. In case there is a resource problem, it may not be possible to write a process dump, just because doing so requires resources, too. It's not obvious whether that is the case or not. The fact that you get a process dump for the same ACCVIO when running DECW$WSINIT interactively, indicates that the underlying problem for the ACCVIO is not a resources problem.

I have set accounting before posting. Strangely, all ACCVIO are
not loggued.

I'm not sure I understand what you mean.

 DECW$WSINIT Image Termination
-----------------------------
Username:          BERTRAND          UIC:               [BERTRAND]             Account:                             Finish time:       14-JUN-2025 15:23:09.75
Process ID:        00000131          Start time:        14-JUN-2025 15:23:07.67
Owner ID:                            Elapsed time:                0 00:00:02.08
Terminal name:                       Processor time:              0 00:00:01.52
Remote node addr:                    Priority:          4  Remote node name:                    Privilege <31-00>: 00108000
Remote ID:                           Privilege <63-32>: 00000000
Remote full name:                                                              Queue entry:                         Final status code: 1000000C
Queue name:                                       Job name:                                                 Final status text: %SYSTEM-F-ACCVIO, access violation, reason mask=!XB, virtual
 Page faults:              939        Direct IO:                  8
Page fault reads:          42        Buffered IO:              121
Peak working set:        1482        Volumes mounted:            0
Peak page file:          2578        Images executed:            3
                                                                              Image name: FERMAT$DUA0:[SYS0.SYSCOMMON.][SYSEXE]DECW$WSINIT.EXE       

The ACCVIO is logged - as well as it can be logged by the accounting facility. The “Final status code” is translaated to “%SYSTEM-F-ACCVIO”, but information about the PC etc. is not available at the time the program terminates.