TeX capacity exceeded

["Thomas A. Schmitz" <thomas.schmitz@uni-bonn.de>]

Hi all,

I have a rather large (almost 120,000 lines) xml file, processing pulls 
in another large xml file. The project compiles under mkiv; with lmtx, I get

tex error       > tex error on line 8 in file : TeX capacity exceeded, 
sorry [reference count=32767]

<macro> \reallanguagetag

just twenty pages shy of the end of the document.

There is an error log with this content:

return {
  ["errortype"]=3,
  ["filename"]="",
  ["lastcontext"]="\n\n\n<macro> \\reallanguagetag \n    \n<macro> 
\\reallanguagetag #1->\\ifcsname \\??languagelinked #1\n    \\endcsname 
\\lastnamedcs \\else #1\\fi \n<macro> \\setusedlanguage #1->\\edef 
\\currentusedlanguage {\\reallanguagetag {#1}\n    }\\ifempty 
\\currentusedlanguage \\let \\currentusedlanguage \\currentlanguage 
\\always\\let \\usedlanguageparameter \\languageparameter \\orelse \\ifx 
\\currentusedlanguage \\v!global \\let \\currentusedlanguage\n\n<macro> 
\\typo_delimited_push ...\\currentdelimitedtext {#1}\\edef 
\\m_delimited_argument {#2}\\ifempty \\m_delimited_argument 
\\typo_delimited_set_language_nop \n    \\else 
\\typo_delimited_set_language_yes \\fi \\let 
\\currentparentdelimitedtext \\currentdelimitedtext \\global \\advance 
\\c_typo...\n\n<macro> \\delimitedtext [#1]#*[#2]->\\dontleavehmode 
\\typo_delimited_push {#1}{#2}\n    \\edef \\p_delimited_method 
{\\delimitedtextparameter \\c!method }\\ifx \\p_delimited_method 
\\v!font \\expandafter \\typo_delimited_fontdriven \\else \\expandafter 
\\typo_delimited_other \\fi \n\n<to be read again> \n 
{\n...\n\n<initial> \n    ",
  ["lastluaerror"]="",
  ["lasttexerror"]="TeX capacity exceeded, sorry [reference count=32767]",
  ["lasttexhelp"]="If you really absolutely need more capacity, you can 
ask a wizard to enlarge me.",
  ["linenumber"]=8,
  ["offset"]=10,
  ["skiplinenumber"]=8,
}

  In mkiv, these are the stats at the end of the run:

mkiv lua stats  > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua
mkiv lua stats  > used cache path: 
/mnt/shared/lmtx/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e
mkiv lua stats  > resource resolver: loadtime 0.009 seconds, 1 scans 
with scantime 0.005 seconds, 0 shared scans, 27 found files, scanned 
paths: /home/tas/texmf
mkiv lua stats  > stored bytecode data: 455 modules (0.122 sec), 96 
tables (0.007 sec), 551 chunks (0.130 sec)
mkiv lua stats  > traced context: maxstack: 1422, freed: 2, unreachable: 
1420
mkiv lua stats  > cleaned up reserved nodes: 63 nodes, 9 lists of 442
mkiv lua stats  > node memory usage: 17 attribute, 4 attribute_list, 1 
glue, 51 glue_spec, 3 kern, 2 penalty, 2 temp, 2 user_defined
mkiv lua stats  > node list callback tasks: 8 unique task lists, 9336 
instances (re)created, 177413 calls
mkiv lua stats  > h-node processing time: 4.800 seconds including kernel
mkiv lua stats  > attribute processing time: 0.617 seconds front- and 
backend
mkiv lua stats  > driver time: 0.886 seconds
mkiv lua stats  > used backend: pdf (backend for directly generating pdf 
output)
mkiv lua stats  > jobdata time: 0.161 seconds saving, 0.052 seconds loading
mkiv lua stats  > callbacks: internal: 261417, file: 319, direct: 3, 
late: 31831, function 200128, total: 493698 (464 per page)
mkiv lua stats  > randomizer: resumed with value 0.47143577262518
mkiv lua stats  > positions: 9535 collected, 9535 regular, 0 special
mkiv lua stats  > v-node processing time: 0.401 seconds
mkiv lua stats  > result saved in file: plutarchusvitae.pdf, 
compresslevel 3, objectcompresslevel 1
mkiv lua stats  > loaded patterns: de::3 en::1 la::65, load time: 0.000
mkiv lua stats  > xml load time: 0.648 seconds, 4 files, 4 converted
mkiv lua stats  > lxml preparation time: 0.626 seconds, 233814 nodes, 
578788 lpath calls, 578743 cached calls
mkiv lua stats  > interactive elements: 0 references, 37 destinations
mkiv lua stats  > margin data: 10798 entries, 0 pending
mkiv lua stats  > loaded fonts: 9 files: garamondpremrpro.otf, 
sabonltstd-bold.otf, sabonltstd-italic.otf, sabonltstd-roman.otf, 
kadmosu.otf, oldstandard-bold.otf, oldstandard-italic.otf, 
xitsmath-regular.otf, dejavusansmono.ttf
mkiv lua stats  > font engine: otf 3.113, afm 1.513, tfm 1.000, 17 
instances, 6 shared in backend, 0 common vectors, 6 common hashes, load 
time 0.146 seconds
mkiv lua stats  > used platform: linux-64, type: unix, binary subtree: 
texmf-linux-64
mkiv lua stats  > used engine: luatex version: 1.13, functionality 
level: 7420, banner: this is luatex, version 1.13.0 (tex live 2021)
mkiv lua stats  > used hash slots: 47131 of 65536 + 250000
mkiv lua stats  > lua properties: engine: lua 5.3, used memory: 601 MB, 
ctx: 579 MB, max: unknown MB, hash chars: min(64,40), symbol mask: utf (τεχ)
mkiv lua stats  > runtime: 22.310 seconds, 1068 processed pages, 1068 
shipped pages, 47.871 pages/second
system          | total runtime: 213.928 seconds


Is texmfcnf.lua still the configuration file I need to look at for this 
kind of problem? Which variable could I change?

Thanks, and all best

Thomas
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