unoserver sometimes generates errored PDF files without crashing

[niels-bosman]

We've noticed that some of our users are experiencing invalid PDF's being generated form our unoserver-server. I will attach a document that is crashed to demonstrate (OUTPUT.pdf). I have noticed the following things when this happens:

• The file is always 32 bytes
• The file always contains unoconvert error: signal: killed as raw data (invalid PDF of course).
• This randomly happens to us, we would expect the converting to fail and there to be no result

How can we prevent this kind of behaviour from happening and possibly prevent this?

INPUT.pptx OUTPUT.pdf

[regebro]

For me it does print an "ioerror" indicating that something is wrong with the input file. It does generate an output file anyway, though. That was with Libreoffice 7.3.7.2.

[niels-bosman]

@regebro I can confirm that this was something that was not reproducible on a per file basis. After one retry it often times works with the same file...

[regebro]

Hmm, I wonder if "unoconvert error: signal: killed" means the OS killed it because it used too many resources, maybe?