BBS:      TELESC.NET.BR
Assunto:  Re: What is an incompatible magic value?
De:       bp
Data:     Tue, 12 May 2026 10:00:01 +1100
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Richard Kettlewell  wrote:
> bp@www.zefox.net writes:
>> Apropos of nothing a Raspberry Pi2B running RasPiOS reported
>> "Incompatible magic value 1157544534 in class file sun/security/x509/RDN"
> 
> Reported where?
> 

In a pop-up dialog box on the video console. So far it's only happened
after a day or two of uptime.  

>> The Owon VDS1022 software hasn't been changed, nor has the system
>> software been updated recently.
>>
>> There have been problems getting the program to start and keep
>> running, fixed by rebooting the Pi.
>>
>> If anybody recognizes what's wrong please post!
> 
> Your Java Runtime Environment is corrupted.

Any hints how to sort this out? It seems that the corruption
must be developing somewhere in the executing binaries in 
memory; fresh off the microSD card things work fine....

There've been a few other mysterious developments, lxterminal
windows vanishing without comment when clicked in the text
area among them. 

The boot microSD was set up some time (months) ago and kept
un-updated after I discovered that updates were not compatible
with the Owon software. I've got a Pi5 running bookworm that
_is_ updated and I check occasionaly to see if it works with
the 'scope. So far, it hasn't. 

The Owon software is from 
https://github.com/florentbr/OWON-VDS1022
This "issue" seems relevant to the problem of later RasPiOS
versions not working at all:
https://github.com/florentbr/OWON-VDS1022/issues/109

As an aside, is there a command to ascertain the version of
kernel and userland software the machine is running? I expected
some sort of "about this computer" button in the main menu, but
don't see anything recognizable.

Thanks for writing!

bob prohaska


--- PyGate Linux v1.5.14
 * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

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