[Pkg-utopia-maintainers] Bug#1070019: Bug#1070019: udisks2: autopkgtest failure: fsconfig system call failed: /dev/sr1: Can't open blockdev

[Chris Hofstaedtler]

* Chris Hofstaedtler <zeha at debian.org> [240429 15:24]:
> > udisks2's autopkgtest fails when tried together with util-linux 2.40. An
> > example can be seen here:
> > https://ci.debian.net/packages/u/udisks2/testing/amd64/46012968/
> > 
> > 537s ======================================================================
> > 537s FAIL: test_ext4 (__main__.FS.test_ext4)
> > 537s fs: ext4
> > 537s ----------------------------------------------------------------------
> > 537s Traceback (most recent call last):
> > 537s   File "/tmp/autopkgtest.btnhgm/build.cz4/src/src/tests/integration-test", line 1107, in _do_udisks_check
> > 537s     cd_fs.call_mount_sync(ro_options, None)
> > 537s gi.repository.GLib.GError: udisks-error-quark: GDBus.Error:org.freedesktop.UDisks2.Error.Failed: Error mounting /dev/sr1 at /media/root/41b1acb1-744c-422a-9071-2dba5368a683: fsconfig system call failed: /dev/sr1: Can't open blockdev (0)
> > 537s
> > 537s During handling of the above exception, another exception occurred:
> > 537s
> > 537s Traceback (most recent call last):
> > 537s   File "/tmp/autopkgtest.btnhgm/build.cz4/src/src/tests/integration-test", line 725, in test_ext4
> > 537s     self._do_fs_check('ext4')
> > 537s   File "/tmp/autopkgtest.btnhgm/build.cz4/src/src/tests/integration-test", line 894, in _do_fs_check
> > 537s     self._do_udisks_check(fs_type)
> > 537s   File "/tmp/autopkgtest.btnhgm/build.cz4/src/src/tests/integration-test", line 1112, in _do_udisks_check
> > 537s     self.fail('Mounting read-only device with \'rw\' option failed'
> > 537s AssertionError: Mounting read-only device with 'rw' option failedwith an unexpected error.
> > 537s Got: udisks-error-quark: GDBus.Error:org.freedesktop.UDisks2.Error.Failed: Error mounting /dev/sr1 at /media/root/41b1acb1-744c-422a-9071-2dba5368a683: fsconfig system call failed: /dev/sr1: Can't open blockdev (0)
> > 537s Expected: 'is write-protected but explicit read-write mode requested' or 'is write-protected but `rw' option given'
 

> I won't get to it this week (also re: stable v2.40.1), but maybe
> someone else has seen this failure already?

Having said that, it seems likely the test was broken by this
change in util-linux:
  libmount: report kernel message from new API
  https://github.com/util-linux/util-linux/commit/9da5644e414cdc318f0311260dabc6035c85b58e

I don't know if the error messages are supposed to be stable or not,
but it looks like a very intentional change :-)

Orthogonally, "/dev/sr1: Can't open blockdev" seems not very
informative if it's supposed to mean "write-protected but `rw'
option given".

Chris