gnome-control-center segfaults on startup

[Brian Connolly]

Just upgrade to ubuntu-gnome 16.10. It appears this bug is back: https://bugs.launchpad.net/ubuntu-gnome/+bug/1309419 . On startup of of printers in the gnome-control-center, it crashes/ logs say: gnome-control-c[2936]: segfault at b0323c ip 00007f6065da2f06 sp 00007ffd35fbc138 error 4 in libc-2.24.so[7f6065d16000+1bd000] .
---
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
CurrentDesktop: GNOME
DistroRelease: Ubuntu 16.10
InstallationDate: Installed on 2016-05-15 (137 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Release amd64 (20160421)
Package: gnome-control-center 1:3.20.1-2ubuntu1
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 4.8.0-17.19-generic 4.8.0-rc7
Tags: third-party-packages yakkety
Uname: Linux 4.8.0-17-generic x86_64
UpgradeStatus: Upgraded to yakkety on 2016-09-27 (1 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True

[Jeremy Bícha (jbicha)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:
apport-collect 1628343

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Brian Connolly (bconnolly)]

apport information

[Brian Connolly (bconnolly)]

apport information

[Brian Connolly (bconnolly)]

apport information

[Brian Connolly (bconnolly)]

Done.

Thank you.

On 09/29/2016 10:27 AM, Jeremy Bicha wrote:
> Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:
> apport-collect 1628343
>
> When reporting bugs in the future please use apport by using 'ubuntu-
> bug' and the name of the package affected. You can learn more about this
> functionality at https://wiki.ubuntu.com/ReportingBugs.
>

[Jeremy Bícha (jbicha)]

Please run this command in your terminal:

sudo apt install gnome-control-center-data/yakkety

In the future, please ppa-purge all of your PPAs before upgrading to a new Ubuntu release.

This was in the attached Dependencies.txt:
gnome-control-center 1:3.20.1-2ubuntu1
gnome-control-center-data 1:3.20.1-2ubuntu2~xenial1 [origin: unknown]

I should upload a newer version of gnome-control-center to yakkety anyway.

[Brian Connolly (bconnolly)]

Ran sudo apt install gnome-control-center-data/yakkety as directed.

Still "printers" is crashing.

gnome-control-c[1741]: segfault at ffffffffa761390c ip 00007f5e7d38df06 sp 00007ffd1ffcc6c8 error 5 in libc-2.24.so[7f5e7d301000+1bd000]

[Jeremy Bícha (jbicha)]

Please verify what version of gnome-control-center and gnome-control-center-data you have installed now.

[Brian Connolly (bconnolly)]

Both are 1:3.20.1-2ubuntu1 (yakkety)

[Jeremy Bícha (jbicha)]

Ok, when gnome-control-center crashes, there should be a popup window asking you if you'd like to report a bug. Could you please do that so that crash information is submitted?

I am going to go ahead and close this bug then.

[Brian Connolly (bconnolly)]

Okay, from the top: I open gnome control center. And when I hit "printers," control center crashes.

As to popup, there is none.

[Brian Connolly (bconnolly)]

Jeremy, how is that "invalid"? It is still broken.

[Jeremy Bícha (jbicha)]

It's invalid because I'm having you file a new bug instead because there is not enough information here for us to diagnose the crash.

Do you see anything in /var/crash/ related to gnome-control-center?

From a terminal, you can run apport-cli /var/crash/_usr_bin_gnome-control-center.1000.crash (or whatever the file is named) to report the crash bug.

[Brian Connolly (bconnolly)]

Arrrrgh. Says "This is not an official Ubuntu package. Please remove any third party package and try again."

See attached.

Could it be the Brother Printer installed?

[Brian Connolly (bconnolly)]

Stripped out cups pdf related. Now working.

[Brian Connolly (bconnolly)]

Reinstalled and now again crashes.

Seems to be related to ​#1565170 cups-pk-helper-mechanism crashed with signal 5 in g_variant_new_va()

[Jeremy Bícha (jbicha)]

I fixed the .crash and filed it for you as bug 1629375.

Let's move the conversation there.

What exactly did you uninstall that enabled the Printers panel to work and what did you install that made it start crashing again?