[Octave-bug-tracker] [bug #56952] segfault during compilation while processing doc/interpreter/genpropdoc.m

[Mike Miller]

Follow-up Comment #4, bug #56952 (project octave):

I can reproduce this error, only occasionally, by deleting all generated files
in doc/interpreter and running make again. I always build with 'make -jN'
where N is 4 or 6 or 8.

Example output on my system with 'make -j6 V=1':


...
rm -f doc/interpreter/plot-rootproperties.texi-t
doc/interpreter/plot-rootproperties.texi && /bin/bash run-octave --norc
--silent --no-history --path ../doc/interpreter --eval "genpropdoc ('root');"
> doc/interpreter/plot-rootproperties.texi-t && mv
doc/interpreter/plot-rootproperties.texi-t
doc/interpreter/plot-rootproperties.texi
rm -f doc/interpreter/plot-surfaceproperties.texi-t
doc/interpreter/plot-surfaceproperties.texi && /bin/bash run-octave --norc
--silent --no-history --path ../doc/interpreter --eval "genpropdoc
('surface');" > doc/interpreter/plot-surfaceproperties.texi-t && mv
doc/interpreter/plot-surfaceproperties.texi-t
doc/interpreter/plot-surfaceproperties.texi
rm -f doc/interpreter/plot-textproperties.texi-t
doc/interpreter/plot-textproperties.texi && /bin/bash run-octave --norc
--silent --no-history --path ../doc/interpreter --eval "genpropdoc ('text');"
> doc/interpreter/plot-textproperties.texi-t && mv
doc/interpreter/plot-textproperties.texi-t
doc/interpreter/plot-textproperties.texi
rm -f doc/interpreter/plot-uimenuproperties.texi-t
doc/interpreter/plot-uimenuproperties.texi && /bin/bash run-octave --norc
--silent --no-history --path ../doc/interpreter --eval "genpropdoc
('uimenu');" > doc/interpreter/plot-uimenuproperties.texi-t && mv
doc/interpreter/plot-uimenuproperties.texi-t
doc/interpreter/plot-uimenuproperties.texi
fatal: caught signal Segmentation fault -- stopping myself...
rm -f doc/interpreter/plot-uibuttongroupproperties.texi-t
doc/interpreter/plot-uibuttongroupproperties.texi && /bin/bash run-octave
--norc --silent --no-history --path ../doc/interpreter --eval "genpropdoc
('uibuttongroup');" > doc/interpreter/plot-uibuttongroupproperties.texi-t &&
mv doc/interpreter/plot-uibuttongroupproperties.texi-t
doc/interpreter/plot-uibuttongroupproperties.texi
rm -f doc/interpreter/plot-uicontextmenuproperties.texi-t
doc/interpreter/plot-uicontextmenuproperties.texi && /bin/bash run-octave
--norc --silent --no-history --path ../doc/interpreter --eval "genpropdoc
('uicontextmenu');" > doc/interpreter/plot-uicontextmenuproperties.texi-t &&
mv doc/interpreter/plot-uicontextmenuproperties.texi-t
doc/interpreter/plot-uicontextmenuproperties.texi
rm -f doc/interpreter/plot-uipanelproperties.texi-t
doc/interpreter/plot-uipanelproperties.texi && /bin/bash run-octave --norc
--silent --no-history --path ../doc/interpreter --eval "genpropdoc
('uipanel');" > doc/interpreter/plot-uipanelproperties.texi-t && mv
doc/interpreter/plot-uipanelproperties.texi-t
doc/interpreter/plot-uipanelproperties.texi
rm -f doc/interpreter/plot-uicontrolproperties.texi-t
doc/interpreter/plot-uicontrolproperties.texi && /bin/bash run-octave --norc
--silent --no-history --path ../doc/interpreter --eval "genpropdoc
('uicontrol');" > doc/interpreter/plot-uicontrolproperties.texi-t && mv
doc/interpreter/plot-uicontrolproperties.texi-t
doc/interpreter/plot-uicontrolproperties.texi
/bin/bash: line 1:  1278 Segmentation fault      (core dumped) /bin/bash
run-octave --norc --silent --no-history --path ../doc/interpreter --eval
"genpropdoc ('root');" > doc/interpreter/plot-rootproperties.texi-t
make[2]: *** [Makefile:31001: doc/interpreter/plot-rootproperties.texi] Error
139
make[2]: *** Waiting for unfinished jobs....


On my system it is not reproducible every time, and it is not a blocker, it's
an annoyance. Restarting the build usually succeeds.

Debian testing, x86_64, Intel integrated graphics with Mesa 19.1.6. And this
is from an up to date clone of the default branch.

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