Firebird 5.0.1.1469 Access violation. The code attempted to access a virtual address without privilege to do so.

[OlegMatveevFB]

SRV-DB-041 Tue Dec 3 02:27:04 2024
Access violation.
The code attempted to access a virtual
address without privilege to do so.
This exception will cause the Firebird server
to terminate abnormally.

Firebird 5.0.1.1469, ODS 13.1, Dialect 1
5 peices core dumps

[hvlad]

It is related with huge amount of monitoring data. Could you confirm ?

[OlegMatveevFB]

Yes, sure. The suspicion was initially about a connection trigger making a request to mon$attachments.
The problem happened twice.
The first time was on one database, after which I turned off this trigger. I enabled the creation of dumps and left the trigger enabled in another database.
But in FB 2.5.9 it works.

[OlegMatveevFB]

Added SQL file into
bug folder

[hvlad]

It is definitely bug. And, perhaps, already fixed in 5581ea6
If it is reproducible, could you try with latest snapshot build ?

[OlegMatveevFB]

Last snapshot can try only after December 24. The error is not specifically reproduced. On November 24th I migrated from 2.5.9 to 5.0.1. This is only the second time.

[hvlad]

Ok, lets wait for @dyemanov opinion