#1114143 gst-plugins-base1.0: FTBFS: test_appsrc_blocked_on_caps:0: (after this point) Test timeout expired

#1114143#5
Date:
2025-09-05 18:18:18 UTC
From:
To:
Dear maintainer:

During a rebuild of all packages in unstable, your package failed to build.

Below you will find how the build ends (probably the most relevant part,
but not necessarily). If required, the full build log is available here:

https://people.debian.org/~sanvila/build-logs/202509/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you could not reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:gst-plugins-base1.0, so that this is still
visible in the BTS web page for this package.

Thanks.
--------------------------------------------------------------------------------
[...]
 debian/rules clean
dh clean
   debian/rules execute_before_dh_auto_clean
make[1]: Entering directory '/<<PKGBUILDDIR>>'
rm -rf /<<PKGBUILDDIR>>/fake-home
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   dh_clean
 debian/rules binary
dh binary
   dh_update_autotools_config
   dh_autoreconf
   debian/rules override_dh_auto_configure
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dh_auto_configure -- -Dpackage-name="GStreamer Base Plugins (Debian)" -Dpackage-origin="https://tracker.debian.org/pkg/gst-plugins-base1.0" -Dinstall_plugins_helper="/usr/bin/gstreamer-codec-install" -Dauto_features=enabled -Dexamples=disabled -Dtremor=disabled -Ddoc=disabled

[... snipped ...]


================================== 121/141 ===================================
test:         validate.videorate.reverse_slow.30fps
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] ps.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 122/141 ===================================
test:         validate.videorate.reverse.variable_to_10fps
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] ps.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 123/141 ===================================
test:         validate.videorate.reverse_fast.variable_to_10fps
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      MALLOC_PERTURB_=2 UBSAN_OPTIONS=halt_on_error= [too-long-redacted] ps.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 124/141 ===================================
test:         validate.videorate.reverse_slow.variable_to_10fps
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] ps.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 125/141 ===================================
test:         validate.videorate.change_rate_while_playing
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] ng.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 126/141 ===================================
test:         validate.videorate.change_rate_reverse_playback
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] ck.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 127/141 ===================================
test:         validate.videorate.rate_0_5
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      MALLOC_PERTURB_=136 UBSAN_OPTIONS=halt_on_erro [too-long-redacted] _5.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 128/141 ===================================
test:         validate.videorate.rate_0_5_with_decoder
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      GST_VALIDATE_LOGSDIR=/<<PKGBUILDDIR>>/obj-x86_ [too-long-redacted] er.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 129/141 ===================================
test:         validate.videorate.rate_2_0
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] _0.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 130/141 ===================================
test:         validate.videorate.rate_2_0_with_decoder
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] er.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 131/141 ===================================
test:         validate.videorate.duplicate_on_eos
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      GST_VALIDATE_LOGSDIR=/<<PKGBUILDDIR>>/obj-x86_ [too-long-redacted] os.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 132/141 ===================================
test:         validate.videorate.duplicate_on_eos_disbaled
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] ed.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 133/141 ===================================
test:         validate.videorate.duplicate_on_eos_half_sec
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] ec.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 134/141 ===================================
test:         validate.videorate.fill_segment_after_caps_changed_before_eos
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] os.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 135/141 ===================================
test:         validate.videorate.drop_out_of_segment
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] nt.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 136/141 ===================================
test:         validate.compositor.renogotiate_failing_unsupported_src_format
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] at.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 137/141 ===================================
test:         validate.giosrc.read-growing-file
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] le.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 138/141 ===================================
test:         validate.encodebin.set-encoder-properties
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] es.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 139/141 ===================================
test:         validate.uridecodebin.expose_raw_pad_caps
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] ps.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 140/141 ===================================
test:         validate.fakevideodec.encoded
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      MALLOC_PERTURB_=165 UBSAN_OPTIONS=halt_on_erro [too-long-redacted] ed.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 141/141 ===================================
test:         validate.fakevideodec.simple
start time:   20:11:58
duration:     0.01s
result:       exit status 0
command:      UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1 [too-long-redacted] le.validatetest --use-fakesinks
----------------------------------- stdout -----------------------------------
1..0 # Skipped: `gst-validate-1.0` not available
----------------------------------- stderr -----------------------------------
gst-validate-1.0 Failed to execute child process ?gst-validate-1.0? (No such file or directory)
==============================================================================

================================== 100/141 ===================================
test:         elements-videoscale-6
start time:   20:11:57
duration:     2.11s
result:       exit status 0
command:      MALLOC_PERTURB_=89 GST_TAG_LICENSE_TRANSLATION [too-long-redacted] sts/check/elements-videoscale-6
----------------------------------- stdout -----------------------------------
Running suite(s): videoscale
100%: Checks: 7, Failures: 0, Errors: 0
Check suite videoscale ran in 2.058s (tests failed: 0)
----------------------------------- stderr -----------------------------------
FIXME: skipping test test_downscale_640x480_1x240_method_3 because it's broken
==============================================================================


Summary of Failures:

 32/141 elements_appsrc                                                FAIL            28.74s   exit status 1

Ok:                106
Fail:              1
Skipped:           34
dh_auto_test: error: cd obj-x86_64-linux-gnu && DEB_PYTHON_INSTALL_LAYOUT=deb LC_ALL=C.UTF-8 MESON_TESTTHREADS=2 meson test --verbose returned exit code 1
make[1]: *** [debian/rules:54: override_dh_auto_test] Error 25
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:43: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
--------------------------------------------------------------------------------

#1114143#14
Date:
2025-09-28 17:43:04 UTC
From:
To:
Control: retitle -1 gst-plugins-base1.0: FTBFS: test_appsrc_blocked_on_caps:0: (after this point) Test timeout expired

Unlike #1114141, I didn't reproduce this when I tried building this
package today. The relevant part of the log Santiago linked seems to be:

so perhaps this is just a timeout that is too short, or perhaps
Santiago's build machine has fewer CPU cores available than official
buildds and that is leading to this build failure?

     smcv

#1114143#21
Date:
2025-09-28 20:19:50 UTC
From:
To:
I did see the same failure on a subsequent rebuild, so it's probably an
intermittent problem.

     smcv

#1114143#26
Date:
2026-01-27 12:02:08 UTC
From:
To:
I'll keep an eye out for it with the 1.28.x

I do not have it disabled locally, nor on my bookworm backports, so
probably. not seen yet. Some tests are indeed a bit dodgy on some
environments :-(

#1114143#31
Date:
2026-04-29 09:27:45 UTC
From:
To:
Santiago,

Just checking in. Is this still a problem? I have never seen this one myself.

#1114143#36
Date:
2026-08-14 15:02:21 UTC
From:
To:
tags 1114143 + wontfix
close 1114143 1.28.6-1
thanks

While I've seen other timeout bugs in the tests (e.g. with the input
selector), I have not seen this one. Since it has been a year since
this one is open and there have been numerous builds since, I can only
assume the issue is no longer there.

If it pops back up, I can disable the test.

#1114143#49
Date:
2026-08-17 08:28:13 UTC
From:
To:
reopen 1114143
tags 1114143 -wontfix
thanks

After some further consulting with Santiago, the additional
information that the build problem occurs in a reproducible way on
machines with 1 CPU helped.

I set up a QEMU VM with 1 CPU and reproduced the problem.

I am reopening the bug, an upload with a fix is pending.

#1114143#60
Date:
2026-08-17 09:04:40 UTC
From:
To:
We believe that the bug you reported is fixed in the latest version of
gst-plugins-base1.0, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1114143@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Marc Leeman <marc.leeman@gmail.com> (supplier of updated gst-plugins-base1.0 package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 17 Aug 2026 10:14:59 +0200
Source: gst-plugins-base1.0
Architecture: source
Version: 1.28.6-2
Distribution: unstable
Urgency: medium
Maintainer: Maintainers of GStreamer packages <gst-plugins-base1.0@packages.debian.org>
Changed-By: Marc Leeman <marc.leeman@gmail.com>
Closes: 1114143
Changes:
 gst-plugins-base1.0 (1.28.6-2) unstable; urgency=medium
 .
   * d/patches: disable appsrc test (Closes: #1114143)
   * d/patches: disable compositor test
   * d/patches: disable videoscale test
Checksums-Sha1:
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 0743372c61fcbef708897f8cdcefe7340af65ba2 58776 gst-plugins-base1.0_1.28.6-2.debian.tar.xz
 723b27421004b2b61b9bb73f5bcc7c060537386b 14153 gst-plugins-base1.0_1.28.6-2_source.buildinfo
Checksums-Sha256:
 f37ff3f3ba20df63e1d83cce6a8fccb20fecb4c0b63e331979d45389bddd40f3 4136 gst-plugins-base1.0_1.28.6-2.dsc
 56e996b54b70b11d437aa0dbc69ff140200203bbd347eec3689dcaaea81c5b4e 58776 gst-plugins-base1.0_1.28.6-2.debian.tar.xz
 95fce2abd69b51c459b5f7b9bb48842e365b8c9e8fe2996ed84b940130f01c65 14153 gst-plugins-base1.0_1.28.6-2_source.buildinfo
Files:
 bfcd04f4596c0284b2df0cd1ef2f1c81 4136 libs optional gst-plugins-base1.0_1.28.6-2.dsc
 08274378e8f5a1c79993d6b980ba049b 58776 libs optional gst-plugins-base1.0_1.28.6-2.debian.tar.xz
 8615681e3dd8fbf418d1eb029d3fdf18 14153 libs optional gst-plugins-base1.0_1.28.6-2_source.buildinfo
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