Tests of 0.4.30 crash on s390x

Running the individual test still reproduces the issue and is a bit more verbose in regard to warngins/errors

$ LC_ALL=C.UTF-8 MESON_TESTTHREADS=1 meson test rgb_params --print-errorlogs
ninja: Entering directory `/root/gegl-0.4.30/obj-s390x-linux-gnu'
ninja: no work to do.
1/1 gegl:composition / rgb_params FAIL 0.67s (exit status 250 or signal 122 SIGinvalid)

The output from the failed tests:

1/1 gegl:composition / rgb_params FAIL 0.67s (exit status 250 or signal 122 SIGinvalid)

--- command ---
08:12:02 GEGL_USE_OPENCL='no' GEGL_PATH='/root/gegl-0.4.30/obj-s390x-linux-gnu/operations' ABS_TOP_SRCDIR='/root/gegl-0.4.30' ABS_TOP_BUILDDIR='/root/gegl-0.4.30/obj-s390x-linux-gnu' GEGL_SWAP='RAM' /usr/bin/python3 /root/gegl-0.4.30/tests/test-runner.py --test-name rgb-params --output-dir /root/gegl-0.4.30/obj-s390x-linux-gnu/tests/compositions/output --reference-path /root/gegl-0.4.30/tests/compositions/reference --input-file /root/gegl-0.4.30/obj-s390x-linux-gnu/../tests/compositions/rgb-params.xml --gegl-exe bin/gegl --imgcmp-exe tools/gegl-imgcmp
--- stdout ---
Bail out! GEGL:ERROR:../gegl/buffer/gegl-buffer-load.c:289:gegl_buffer_load: assertion failed: (babl_format_get_bytes_per_pixel (info->format) == info->header.bytes_per_pixel)
--- stderr ---

(gegl-imgcmp:51090): GLib-GObject-WARNING **: 08:12:03.394: value "-2147483648" of type 'gint' is invalid or out of range for property 'tile-width' of type 'gint'
**
GEGL:ERROR:../gegl/buffer/gegl-buffer-load.c:289:gegl_buffer_load: assertion failed: (babl_format_get_bytes_per_pixel (info->format) == info->header.bytes_per_pixel)

The assertion is:
GEGL:ERROR:../gegl/buffer/gegl-buffer-load.c:289:gegl_buffer_load: assertion failed: (babl_format_get_bytes_per_pixel (info->format) == info->header.bytes_per_pixel)

Further isolating the test the failing command is actually the img comparison:
GEGL_USE_OPENCL='no' GEGL_PATH='/root/gegl-0.4.30/obj-s390x-linux-gnu/operations' ABS_TOP_SRCDIR='/root/gegl-0.4.30' ABS_TOP_BUILDDIR='/root/gegl-0.4.30/obj-s390x-linux-gnu' GEGL_SWAP='RAM' /root/gegl-0.4.30/obj-s390x-linux-gnu/tools/gegl-imgcmp /root/gegl-0.4.30/tests/compositions/reference/rgb-params.gegl /root/gegl-0.4.30/obj-s390x-linux-gnu/tests/compositions/output/rgb-params.gegl

With that we see that the backtrace and values are:

Thread 1 "gegl-imgcmp" received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
49 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
#1 0x000003fffd92ad48 in __GI_abort () at abort.c:79
#2 0x000003fffdc26e42 in () at /lib/s390x-linux-gnu/libglib-2.0.so.0
#3 0x000003fffdc26ea6 in g_assertion_message_expr () at /lib/s390x-linux-gnu/libglib-2.0.so.0
#4 0x000003fffdec27e6 in gegl_buffer_load (path=<optimized out>) at ../gegl/buffer/gegl-buffer-load.c:289
#5 0x000003ff872c370a in gegl_buffer_load_op_ensure_buffer (o=0x2aa00222200) at ../operations/common/gegl-buffer-load-op.c:40
#6 gegl_buffer_load_op_ensure_buffer (o=0x2aa00222200) at ../operations/common/gegl-buffer-load-op.c:37
#7 gegl_buffer_load_op_get_bounding_box (operation=<optimized out>) at ../operations/common/gegl-buffer-load-op.c:49
#8 0x000003fffdf03138 in gegl_operation_get_bounding_box (self=self@entry=0x2aa000f1750) at ../gegl/operation/gegl-operation.c:212
#9 0x000003fffdf036dc in gegl_graph_prepare (path=0x2aa0022e100) at ../gegl/process/gegl-graph-traversal.c:191
#10 0x000003fffdf03926 in gegl_eval_manager_prepare (self=0x2aa0022cc00) at ../gegl/process/gegl-eval-manager.c:93
#11 0x000003fffdf039b2 in gegl_eval_manager_get_bounding_box (self=0x2aa0022cc00) at ../gegl/process/gegl-eval-manager.c:102
#12 0x000003fffdeeb386 in gegl_node_get_bounding_box (self=self@entry=0x2aa00129cc0) at ../gegl/graph/gegl-node.c:1844
#13 0x000003fffdeeb58a in gegl_node_property_changed (gobject=<optimized out>, arg1=0x2aa000a4d40, user_data=0x3ffffffe2d0) at ../gegl/graph/gegl-node.c:1376
#14 0x000003fffdb135ce in g_closure_invoke () at /lib/s390x-linux-gnu/libgobject-2.0.so.0
#15 0x000003fffdb4653a in () at /lib/s390x-linux-gnu/libgobject-2.0.so.0
#16 0x000003fffdb34b18 in g_signal_emit_valist () at /lib/s390x-linux-gnu/libgobject-2.0.so.0
#17 0x000003fffdb34dda in g_signal_emit () at /lib/s390x-linux-gnu/libgobject-2.0.so.0
#18 0x000003fffdb1d5e6 in () at /lib/s390x-linux-gnu/libgobject-2.0.so.0
#19 0x000003fffdb1fe94 in g_object_thaw_notify () at /lib/s390x-linux-gnu/libgobject-2.0.so.0
#20 0x000003fffdeebe70 in gegl_node_set_valist (self=0x2aa00129cc0, first_property_name=<optimized out>, var_args=<optimized out>) at ../gegl/graph/gegl-node.c:1572
#21 0x000003fffdeec2ae in gegl_node_set (self=0x2aa00129cc0, first_property_name=first_property_name@entry=0x3fff818eb58 "path") at ../gegl/graph/gegl-node.c:1468
#22 0x000003fff818d4e6 in do_setup (operation=operation@entry=0x2aa001e3cb0, path=0x2aa001187d0 "/root/gegl-0.4.30/tests/compositions/reference/rgb-params.gegl", uri=0x2aa00225440 "")
    at ../operations/core/load.c:271
#23 0x000003fff818dd26 in attach (operation=0x2aa001e3cb0) at ../operations/core/load.c:301
#24 0x000003fffdf011e0 in gegl_operation_attach (self=0x2aa001e3cb0, node=0x2aa00129980) at ../gegl/operation/gegl-operation.c:321
#25 0x000003fffdeeb904 in gegl_node_set_operation_object (self=self@entry=0x2aa00129980, operation=operation@entry=0x2aa001e3cb0) at ../gegl/graph/g...

The very same on x86 shows a valid header:

(gdb) p info->header.bytes_per_pixel
$1 = 16

Also reported to Debian since they are affected the same way
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=991300

Depending on an upstream response we can then consider
a) waiting for a fix as 0.4.30 is broken (real regression) and we
   don't want it to migrate
b) it was always broken, just now the test shows it (=no regression).
   In this case we might consider skipping the tests for now.

This bug was fixed in the package gegl - 1:0.4.32-1

---------------
gegl (1:0.4.32-1) unstable; urgency=medium

  * Team upload
  * New upstream release
  * d/p/tests-Use-endiannness-dependent-reference-GEGL-buffers.patch,
    d/rules, d/clean:
    Avoid trying to load little-endian GEGL buffers on BE architectures
    (Closes: #991300)
  * d/lbgegl-0.4-0.docs: Adjust name of NEWS.adoc
  * d/rules: Enable gtk-doc if necessary
  * d/control.in: Don't depend on gtk-doc-tools under nodoc profile
  * d/libgegl-0.4-0.symbols: Mark private symbols as optional
  * d/p/docs-Don-t-scan-ctx.h-with-gtk-doc.patch:
    Add proposed patch fixing FTBFS with current gtk-doc
  * d/libgegl-doc.docs: Install asciidoc source instead of HTML.
    HTML is no longer provided in the tarball release.

 -- Simon McVittie <email address hidden> Thu, 09 Sep 2021 13:10:11 +0100