GNU bug report logs - #51369
intermittent dbus-test04-register-method failure

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Message #3 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: submit <at> debbugs.gnu.org
Subject: intermittent dbus-test04-register-method failure
Date: Sun, 24 Oct 2021 05:04:52 -0400

Package: emacs
Version: 28.0.60
Severity: minor

I do a daily build of the emacs-28 branch (before merging it to master).
3 of the past 4 days, dbus-test04-register-method has failed.
This failure is not repeatable. This is on CentOS 8.4.

(In general, I find the Emacs test suite continues to be frustratingly
unstable. Yesterday there was a non-repeatable files-tests failure.
So 4/4 days when make check failed non-repeatably.)


Running 16 tests (2021-10-24 01:51:00-0700, selector `(not (or (tag :expensive-test) (tag :unstable) (tag :nativecomp)))')
   passed   1/16  dbus-test00-availability-session (0.006923 sec)
   passed   2/16  dbus-test00-availability-system (0.009815 sec)
dbus[304869]: arguments to dbus_message_iter_append_basic() were incorrect, assertion "signature_validity == DBUS_VALID" failed in file ../../dbus/dbus-message.c line 2772.
This is normally a bug in some application using the D-Bus library.

   passed   3/16  dbus-test01-basic-types (0.000554 sec)
   passed   4/16  dbus-test01-compound-types (0.000304 sec)
   passed   5/16  dbus-test01-type-conversion (0.000184 sec)
   passed   6/16  dbus-test02-register-service-own-bus (0.473175 sec)
   passed   7/16  dbus-test02-register-service-session (0.016950 sec)
  skipped   8/16  dbus-test02-register-service-system (0.001274 sec)
   passed   9/16  dbus-test03-peer-interface (0.116033 sec)
Test dbus-test04-register-method backtrace:
  signal(ert-test-failed (((should (equal (should-error (dbus-call-met
  ert-fail(((should (equal (should-error (dbus-call-method :session db
  #f(compiled-function () #<bytecode -0x7a1d5334197ebdd>)()
  ert--run-test-internal(#s(ert--test-execution-info :test #s(ert-test
  ert-run-test(#s(ert-test :name dbus-test04-register-method :document
  ert-run-or-rerun-test(#s(ert--stats :selector ... :tests ... :test-m
  ert-run-tests((not (or (tag :expensive-test) (tag :unstable) (tag :n
  ert-run-tests-batch((not (or (tag :expensive-test) (tag :unstable) (
  ert-run-tests-batch-and-exit((not (or (tag :expensive-test) (tag :un
  eval((ert-run-tests-batch-and-exit '(not (or (tag :expensive-test) (
  command-line-1(("-L" ":." "-l" "ert" "-l" "lisp/net/dbus-tests" "--e
  command-line()
  normal-top-level()
Test dbus-test04-register-method condition:
    (ert-test-failed
     ((should
       (equal
	(should-error ...)
	`...))
      :form
      (equal
       (dbus-error "D-Bus signal" "foo" "bar" "baz")
       (dbus-error "org.freedesktop.DBus.Error.Failed" "D-Bus error: \"D-Bus signal\", \"foo\", \"bar\", \"baz\""))
      :value nil :explanation
      (proper-lists-of-different-length 5 3
					(dbus-error "D-Bus signal" "foo" "bar" "baz")
					(dbus-error "org.freedesktop.DBus.Error.Failed" "D-Bus error: \"D-Bus signal\", \"foo\", \"bar\", \"baz\"")
					first-mismatch-at 1)))
   FAILED  10/16  dbus-test04-register-method (0.028452 sec)
   passed  11/16  dbus-test05-register-signal (0.219088 sec)
   passed  12/16  dbus-test06-property-types (0.368912 sec)
   passed  13/16  dbus-test06-register-property (0.107013 sec)
   passed  14/16  dbus-test06-register-property-emits-signal (0.136756 sec)
   passed  15/16  dbus-test06-register-property-several-paths (0.038262 sec)
   passed  16/16  dbus-test07-introspection (0.213032 sec)

Ran 16 tests, 14 results as expected, 1 unexpected, 1 skipped (2021-10-24 01:51:02-0700, 1.923455 sec)

1 unexpected results:
   FAILED  dbus-test04-register-method

1 skipped results:
  SKIPPED  dbus-test02-register-service-system

Message #6 received at 51369 <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 51369 <at> debbugs.gnu.org
Subject: Re: bug#51369: intermittent dbus-test04-register-method failure
Date: Mon, 01 Nov 2021 13:27:33 +0100

Glenn Morris <rgm <at> gnu.org> writes:

Hi Glenn,

> Test dbus-test04-register-method condition:
>     (ert-test-failed
>      ((should
>        (equal
> 	(should-error ...)
> 	`...))
>       :form
>       (equal
>        (dbus-error "D-Bus signal" "foo" "bar" "baz")
>        (dbus-error "org.freedesktop.DBus.Error.Failed" "D-Bus error: \"D-Bus signal\", \"foo\", \"bar\", \"baz\""))
>       :value nil :explanation
>       (proper-lists-of-different-length 5 3
> 					(dbus-error "D-Bus signal" "foo" "bar" "baz")
> 					(dbus-error "org.freedesktop.DBus.Error.Failed" "D-Bus error: \"D-Bus signal\", \"foo\", \"bar\", \"baz\"")
> 					first-mismatch-at 1)))
>    FAILED  10/16  dbus-test04-register-method (0.028452 sec)

The error message to be captured can arrive in two different
flavors. Only on hydra the other flavor appears sometimes.

So I skip this check on hydra. Pushed to emacs-28 and merged to master.

Best regards, Michael.

Message #9 received at 51369 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 51369 <at> debbugs.gnu.org
Subject: Re: bug#51369: intermittent dbus-test04-register-method failure
Date: Mon, 01 Nov 2021 10:17:03 -0400

Michael Albinus wrote:

> The error message to be captured can arrive in two different
> flavors. Only on hydra the other flavor appears sometimes.
>
> So I skip this check on hydra. Pushed to emacs-28 and merged to master.

But my report was about a CentOS 8.4 desktop, not hydra.nixos.org.
The Emacs test-suite needs to be reliable everywhere.

Message #12 received at 51369 <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 51369 <at> debbugs.gnu.org
Subject: Re: bug#51369: intermittent dbus-test04-register-method failure
Date: Mon, 01 Nov 2021 19:23:52 +0100

Glenn Morris <rgm <at> gnu.org> writes:

Hi Glenn,

>> The error message to be captured can arrive in two different
>> flavors. Only on hydra the other flavor appears sometimes.
>>
>> So I skip this check on hydra. Pushed to emacs-28 and merged to master.
>
> But my report was about a CentOS 8.4 desktop, not hydra.nixos.org.
> The Emacs test-suite needs to be reliable everywhere.

I see.

I've installed a CentOS 8 VM, and compiled Emacs 29 there. Running
dbus-tests in batch.

In 4 of 10 runs, the reported error happened. Good, so I have a chance
to debug it.

(Next days I'm short in time, but let's see how it goes.)

Best regards, Michael.

Message #15 received at 51369 <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 51369 <at> debbugs.gnu.org
Subject: Re: bug#51369: intermittent dbus-test04-register-method failure
Date: Sat, 06 Nov 2021 17:34:01 +0100

Michael Albinus <michael.albinus <at> gmx.de> writes:

Hi Glenn,

>>> The error message to be captured can arrive in two different
>>> flavors. Only on hydra the other flavor appears sometimes.
>>>
>>> So I skip this check on hydra. Pushed to emacs-28 and merged to master.
>>
>> But my report was about a CentOS 8.4 desktop, not hydra.nixos.org.
>> The Emacs test-suite needs to be reliable everywhere.
>
> I see.
>
> I've installed a CentOS 8 VM, and compiled Emacs 29 there. Running
> dbus-tests in batch.
>
> In 4 of 10 runs, the reported error happened. Good, so I have a chance
> to debug it.

I've pushed a corrected version of dbus-tests.el to the emacs-28 branch,
which passes all tests on my CentOS VM reliably. Merged with master.

Best regards, Michael.

Message #22 received at 51369-done <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 51369-done <at> debbugs.gnu.org
Subject: Re: bug#51369: intermittent dbus-test04-register-method failure
Date: Tue, 16 Nov 2021 14:00:27 +0100

Version: 28.1

Michael Albinus <michael.albinus <at> gmx.de> writes:

Hi Glenn,

> I've pushed a corrected version of dbus-tests.el to the emacs-28 branch,
> which passes all tests on my CentOS VM reliably. Merged with master.

No further comments, so I'm closing this bug.

Best regards, Michael.

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