https://bugzilla.redhat.com/show_bug.cgi?id=1993670
--- Comment #10 from a3emdot andre.maute@gmx.de --- Looks like there is some kind of nondeterminism involved, even if specifying the output option her are some runs with a simple shell script
$ ./pango-view-segfaults-20210915.sh
$ ./pango-view-segfaults-20210915.sh pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 2: 39789 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 8" --antialias=gray --backend=cairo --text="1234567890" --output="out8.png" pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 8: 39820 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 20" --antialias=gray --backend=cairo --text="1234567890" --output="out20.png"
$ ./pango-view-segfaults-20210915.sh pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 3: 40010 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 10" --antialias=gray --backend=cairo --text="1234567890" --output="out10.png" pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 4: 40016 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 12" --antialias=gray --backend=cairo --text="1234567890" --output="out12.png" pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 9: 40048 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 22" --antialias=gray --backend=cairo --text="1234567890" --output="out22.png" pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 10: 40058 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 24" --antialias=gray --backend=cairo --text="1234567890" --output="out24.png" pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 16: 40147 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 36" --antialias=gray --backend=cairo --text="1234567890" --output="out36.png"
$ ./pango-view-segfaults-20210915.sh pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 3: 40307 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 10" --antialias=gray --backend=cairo --text="1234567890" --output="out10.png" pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 5: 40330 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 14" --antialias=gray --backend=cairo --text="1234567890" --output="out14.png" pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 8: 40368 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 20" --antialias=gray --backend=cairo --text="1234567890" --output="out20.png"
$ ./pango-view-segfaults-20210915.sh pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 7: 40620 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 18" --antialias=gray --backend=cairo --text="1234567890" --output="out18.png" pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 9: 40641 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 22" --antialias=gray --backend=cairo --text="1234567890" --output="out22.png" pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 13: 40717 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 30" --antialias=gray --backend=cairo --text="1234567890" --output="out30.png" pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 15: 40743 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 34" --antialias=gray --backend=cairo --text="1234567890" --output="out34.png"
$ ./pango-view-segfaults-20210915.sh pango-view: cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed. ./pango-view-segfaults-20210915.sh: line 3: 40904 Aborted (core dumped) pango-view --no-display --dpi=72 --font="DejaVu Sans 10" --antialias=gray --backend=cairo --text="1234567890" --output="out10.png"