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Bug#413249: marked as done ("wrong returnvalue logic in config script")

Your message dated Sat, 12 Jul 2008 12:59:16 +0200
with message-id <20080712105843.GA18851@patate.is-a-geek.org>
and subject line Re: Bug#413249: "wrong returnvalue logic in config script"
has caused the Debian Bug report #413249,
regarding "wrong returnvalue logic in config script"
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
413249: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=413249
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: x11-common
Version: 1:7.1.0-13
Severity: serious

Today I upgraded x11-common from -12 to -13 on my etch system.  It
displayed a debconf note "incorrect nice value" (btw. the wording is poor,
there's no indication we're dealing with x11-common).  I pressed "next"
and expected some new dialog where I could enter the nice value, but
nothing happened, the script hangs.

After pressing "Cancel", the pre-configuring stops, and I see the
following output on the terminal:

DESTROY created new reference to dead object ' Qt::VBoxLayout', <> line 14 during global destruction.
Preconfiguring packages ...
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN10> line 4.
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN10> line 9.
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN10> line 17.
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN10> line 25.
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN10> line 33.
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN10> line 41.
DESTROY created new reference to dead object ' Qt::VBoxLayout' during global destruction.

Received signal.  Aborting x11-common package config script.

The installation continues, this is the following screen output, at this
time the frontend (KDE) displays the question again:

(Reading database ... 195590 files and directories currently installed.)
Preparing to replace libvolume-id0 0.103-2 (using .../libvolume-id0_0.105-2_i386.deb) ...
Unpacking replacement libvolume-id0 ...
Preparing to replace udev 0.103-2 (using .../archives/udev_0.105-2_i386.deb) ...
Unpacking replacement udev ...
Preparing to replace x11-common 1:7.1.0-12 (using .../x11-common_1%3a7.1.0-13_i386.deb) ...
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 4.
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 9.

pressing "next" gives:

Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 17.

"next" once more gives:

Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 25.

further "next" give:

Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 33.
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 41. 

after that it's line 49, then I stopped the game and pressed "cancel".  

dpkg: error processing /var/cache/apt/archives/x11-common_1%3a7.1.0-13_i386.deb (--unpack):
 subprocess pre-installation script killed by signal (Segmentation fault)
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 4.
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 9.
DESTROY created new reference to dead object ' Qt::VBoxLayout', <GEN1> line 15 during global destruction.
dpkg: error while cleaning up:
 subprocess post-installation script returned error exit status 255


After that it shows the screen again, this time I don't know the first
lines of output, because I get more than a screenful of

/usr/share/debconf/confmodule: line 42: printf: write error: Broken pipe

and stopped with Ctrl-c:

dpkg: error processing udev (--configure):
 subprocess post-installation script killed by signal (Interrupt)
dpkg: dependency problems prevent configuration of xserver-xorg-core:
 xserver-xorg-core depends on x11-common (>= 1:7.0.0); however:
  Package x11-common is not configured yet.
dpkg: error processing xserver-xorg-core (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of xserver-xorg-video-neomagic:
 xserver-xorg-video-neomagic depends on xserver-xorg-core (>= 2:1.1.1-11); however:
  Package xserver-xorg-core is not configured yet.
dpkg: error processing xserver-xorg-video-neomagic (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of xserver-xorg-video-all:
 xserver-xorg-video-all depends on xserver-xorg-video-neomagic; however:
  Package xserver-xorg-video-neomagic is not configured yet.
dpkg: error processing xserver-xorg-video-all (--configure):
 dependency problems - leaving unconfigured

Received signal.  Aborting x11-common package config script.

Errors were encountered while processing:
 x11-common
 udev
 xserver-xorg-core
 xserver-xorg-video-neomagic
 xserver-xorg-video-all

# export DEBCONF_DEBUG=developer
# dpkg --configure -a 2>&1 | tee error.log

This time, I pressed "Next" only once, then cancel, and didn't need to
stop with Ctrl-c.  error.lg is attached, but it seems this could be the
problem:

Setting up x11-common (7.1.0-12) ...
debconf (developer): frontend started
debconf (developer): frontend running, package name is x11-common
debconf (developer): starting /var/lib/dpkg/info/x11-common.config configure 1:7.1.0-12
debconf (developer): <-- SET x11-common/xwrapper/allowed_users Console Users Only
debconf (developer): --> 0 value set
debconf (developer): <-- SET x11-common/xwrapper/nice_value 0
debconf (developer): --> 0 value set
debconf (developer): <-- INPUT low x11-common/xwrapper/allowed_users
debconf (developer): --> 30 question skipped
debconf (developer): <-- GO 
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 4.
debconf (developer): --> 0 ok
debconf (developer): <-- GET x11-common/xwrapper/allowed_users

Regards, Frank




-- System Information:
Debian Release: 4.0
  APT prefers testing
  APT policy: (500, 'testing'), (99, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-4-686
Locale: LANG=de_DE@euro, LC_CTYPE=de_DE@euro (charmap=ISO-8859-15)

Versions of packages x11-common depends on:
ii  debconf [debconf-2.0]         1.5.11     Debian configuration management sy
ii  debianutils                   2.17       Miscellaneous utilities specific t
ii  lsb-base                      3.1-23     Linux Standard Base 3.1 init scrip

x11-common recommends no packages.

-- debconf information:
  x11-common/xwrapper/nice_value: 0
  x11-common/xwrapper/allowed_users: Console Users Only
  x11-common/xwrapper/actual_allowed_users: console
  x11-common/xwrapper/nice_value/error:
  x11-common/x11r6_bin_not_empty:
  x11-common/upgrade_issues:

-- 
Dr. Frank Küster
Single Molecule Spectroscopy, Protein Folding @ Inst. f. Biochemie, Univ. Zürich
Debian Developer (teTeX/TeXLive)


Setting up x11-common (7.1.0-12) ...
debconf (developer): frontend started
debconf (developer): frontend running, package name is x11-common
debconf (developer): starting /var/lib/dpkg/info/x11-common.config configure 1:7.1.0-12
debconf (developer): <-- SET x11-common/xwrapper/allowed_users Console Users Only
debconf (developer): --> 0 value set
debconf (developer): <-- SET x11-common/xwrapper/nice_value 0
debconf (developer): --> 0 value set
debconf (developer): <-- INPUT low x11-common/xwrapper/allowed_users
debconf (developer): --> 30 question skipped
debconf (developer): <-- GO 
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 4.
debconf (developer): --> 0 ok
debconf (developer): <-- GET x11-common/xwrapper/allowed_users
debconf (developer): --> 0 Console Users Only
debconf (developer): <-- SET x11-common/xwrapper/actual_allowed_users console
debconf (developer): --> 0 value set
debconf (developer): <-- GET x11-common/xwrapper/nice_value
debconf (developer): --> 0 0
debconf (developer): <-- INPUT low x11-common/xwrapper/nice_value
debconf (developer): --> 30 question skipped
debconf (developer): <-- GO 
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 9.
debconf (developer): --> 0 ok
debconf (developer): <-- GET x11-common/xwrapper/nice_value
debconf (developer): --> 0 
debconf (developer): <-- SET x11-common/xwrapper/nice_value 0
debconf (developer): --> 0 value set
debconf (developer): <-- FSET x11-common/xwrapper/nice_value seen false
debconf (developer): --> 0 false
debconf (developer): <-- FSET x11-common/xwrapper/nice_value/error seen false
debconf (developer): --> 0 false
debconf (developer): <-- INPUT critical x11-common/xwrapper/nice_value/error
debconf (developer): --> 0 question will be asked
debconf (developer): <-- GO 
debconf (developer): --> 0 ok
debconf (developer): <-- INPUT low x11-common/xwrapper/nice_value
debconf (developer): --> 30 question skipped
debconf (developer): <-- GO 
Use of uninitialized value in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 104, <GEN1> line 17.
debconf (developer): --> 0 ok
debconf (developer): <-- GET x11-common/xwrapper/nice_value
debconf (developer): --> 0 
debconf (developer): <-- SET x11-common/xwrapper/nice_value 0
debconf (developer): --> 0 value set
debconf (developer): <-- FSET x11-common/xwrapper/nice_value seen false
debconf (developer): --> 0 false
debconf (developer): <-- FSET x11-common/xwrapper/nice_value/error seen false
debconf (developer): --> 0 false
debconf (developer): <-- INPUT critical x11-common/xwrapper/nice_value/error
debconf (developer): --> 0 question will be asked
debconf (developer): <-- GO 
debconf (developer): QTF: -- LEAVE EVENTLOOP --------
dpkg: error processing x11-common (--configure):
 subprocess post-installation script killed by signal (Segmentation fault)
Setting up udev (0.105-2) ...
/boot/initrd.img-2.6.18-4-686 has been altered. Cannot update.

dpkg: dependency problems prevent configuration of xserver-xorg-core:
 xserver-xorg-core depends on x11-common (>= 1:7.0.0); however:
  Package x11-common is not configured yet.
dpkg: error processing xserver-xorg-core (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of xserver-xorg-video-neomagic:
 xserver-xorg-video-neomagic depends on xserver-xorg-core (>= 2:1.1.1-11); however:
  Package xserver-xorg-core is not configured yet.
dpkg: error processing xserver-xorg-video-neomagic (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of xserver-xorg-video-all:
 xserver-xorg-video-all depends on xserver-xorg-video-neomagic; however:
  Package xserver-xorg-video-neomagic is not configured yet.
dpkg: error processing xserver-xorg-video-all (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 x11-common
 xserver-xorg-core
 xserver-xorg-video-neomagic
 xserver-xorg-video-all

--- End Message ---
--- Begin Message --- 
Version: 1:7.2-2

On Fri, Jun 15, 2007 at 16:56:34 +0200, Frank Küster wrote:

> Brice Goglin <Brice.Goglin@ens-lyon.org> wrote:
> 
> > Hi Frank,
> >
> > What's the status of this x11-common bug today? (after fixing or
> > ignoring your debconf problems).
> 
> It seems no one has addressed it.
> 
> > It's kind of hard to understand which
> > fixes are needed in x11-common in the end. Do you still need your fix
> > from [1]?
> 
> What do you mean with "need"?  The fix in that message didn't solve the
> underlying problem which originated in debconf (and has since been
> solved in etch).  Instead, it fixed the "wrong returnvalue logic in
> the config script".
> 
> Nobody has anywhere in the bug stated that the logic is not wrong.  So
> either you just apply my fix, or you investigate further why it still
> works.  I suspect that it works just because if the question is not
> shown, it fails to break, but then validates the value in SAFE, which is
> 0 in this case.
> 
I think this was fixed by Colin Watson a while ago.

Quoting from the changelog entry:
xorg (1:7.2-2) experimental; urgency=low
[...]
  [ Colin Watson ]
  * debian/xserver-xorg.config.in: Improve expr return code handling in
    validate_nice_value; don't use run function when we need to check
    db_input's return value (LP: #68267).
[...]
 -- David Nusinow <dnusinow@debian.org>  Sun, 15 Apr 2007 11:44:28 -0400

Closing the bug, thanks for your report.

Cheers,
Julien

--- End Message ---
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