apport falls into infinite loop

[Till Kamppeter]

Whenever apport gets triggered or when I manually invoke report to report a bug it goes into an infinite loop, not answwering, exiting, nor opening a window and it takes 100% CPU until I kill it. I do not get any files in /var/crash/, so there is also no way to manually investigate the problem.

This is a severe problem to fix the final bugs and to get testing feedback in the end of the Quantal cycle. Therefore I mark it as "Critical"...
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ApportLog:

ApportVersion: 2.6.1-0ubuntu1
Architecture: amd64
DistroRelease: Ubuntu 12.10
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120724.2)
Package: apport 2.6.1-0ubuntu1
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 3.5.0-17.27-generic 3.5.5
Tags: quantal running-unity
Uname: Linux 3.5.0-17-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo

[Till Kamppeter (till-kamppeter)]

For obvious reasons I could not use "apport-bug apport" for reporting this bug.

[Edward Donovan (edward.donovan)]

This isn't happening on my Quantal system. Any hints on how to reproduce? Thanks.

[Martin Pitt (pitti)]

How far do you get with this? I. e. if you run "apport-bug coreutils", do you see anything, or does it just go into the infinite loop straight away? Do you see anything on stdout/err? If no, can you please run

  strace -fvvs1024 -o /tmp/trace apport-bug coreutils

let it run for a few secs, then bzip2 /tmp/trace and attach /tmp/trace.bz2 here? Thanks!

[Till Kamppeter (till-kamppeter)]

Apport returned to work normally for me. I will reopen the bug if it hangs again.

[Till Kamppeter (till-kamppeter)]

Apport problem is appearing again. On each start of cupsd avahi-daemon goes to 100% CPU intil restarting avahi-daemon.

[Till Kamppeter (till-kamppeter)]

I mean that the Avahi problem is appearing again. Apport is behaving normally.

[Till Kamppeter (till-kamppeter)]

apport information

[Till Kamppeter (till-kamppeter)]

apport information

[Till Kamppeter (till-kamppeter)]

Apport info is from a system state with avahi-daemon taking 100% CPU.

[Till Kamppeter (till-kamppeter)]

Sorry, all wrong, I wanted to post on another bug.