On Tue, 28 Feb 2023 at 20:28, Petr Olsak wrote:

Hello luatex developers,

I installed TL pretest with new luatex binary and I found a bug in it, when \directmetapost defined in minim-mp package is used. Try the following file:

checking now

On 2/28/2023 8:19 PM, Petr Olsak wrote:

Hello luatex developers,

I installed TL pretest with new luatex binary and I found a bug in it, when \directmetapost defined in minim-mp package is used. Try the following file:

\input minim-mp

\directmetapost{ % define the pattern picture letter; letter = maketext("a"); beginpattern(a)     draw letter rotated 45;     matrix = identity rotated 45; endpattern(12pt,12pt); % use the pattern beginfig(1)     fill fullcircle scaled 3cm withpattern(a) withcolor 3/4red;     draw fullcircle scaled 3cm withpen pencircle scaled 1; endfig; }

\bye

and run luatex. The luatex from TL 2022 runs without problems but luatex from TL 2023 says:

This is LuaTeX, Version 1.16.0 (TeX Live 2023)  restricted system commands enabled. (./test.tex (/usr/local/texlive/2023/texmf-dist/tex/luatex/minim-mp/minim-mp.tex (/usr/local/texlive/2023/texmf-dist/tex/luatex/minim/minim-alloc.tex) (/usr/local/texlive/2023/texmf-dist/tex/luatex/minim/minim-pdfresources.tex)){/ usr/local/texlive/2023/texmf-var/fonts/map/pdftex/updmap/pdftex.map} ! error:  (pdf backend): 2 unmatched 'save' after form shipout !  ==> Fatal error occurred, no output PDF file produced!

Michal Vlasak noticed that the problem is probably related to the commit:

https://gitlab.lisn.upsaclay.fr/texlive/luatex/-/commit/c1909e4a4c5311197a25...

Hi Michal, The error indicates some bad whatsit subtype being used. Can you check if any of the packages that gets loaded here, does some numeric whatsit node allocation? The late literal has its own whatsid subtype (I might collapse it at some time into the regular one as that makes more sense.) which makes e.g. save, restore, user ones move up in the subtype number range. (I don't want to waste more time than i already did chasing something that is possibly outside the engines scope, so best check this first before I look deeper down the code.) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------