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Bug#502320: marked as forwarded (libopenusb0: race condition)

Subject: Bug#502320: marked as forwarded libopenusb0: race condition
From: Debian Bug Tracking System
Date: Wed, 15 Oct 2008 16:51:08 +0000
Your message dated Thu, 16 Oct 2008 01:19:27 +0200
with message-id <[email protected]>
has caused the   report #502320,
regarding libopenusb0: race condition
to be marked as having been forwarded to the upstream software
author(s) Frits van der Linden <[email protected]>, Sophia Li 
<[email protected]>

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502320: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=502320
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Subject: Debian Bug#502320: libopenusb0: race condition
From: Simon Richter
Date: Thu, 16 Oct 2008 01:19:27 +0200

it appears to me that there is some sort of a race condition there. I
haven't investigated yet, though, but wanted to run it by you.


----- Forwarded message -----

Package: libopenusb0
Version: 1.0.1-5
Severity: important


There appears to be a race condition inside the Linux plugin for libopenusb.

The message

 The last reference on a connection was dropped without closing the
 connection. This is a bug in an application. See dbus_connection_unref()
 documentation for details.

 Most likely, the application was supposed to call dbus_connection_close(),
 since this is a private connection.

is output on amd64 a varying number of times, occasionally followed by a
segmentation fault. On powerpc, it appears to work fine, but the race can
be triggered by attaching a debugger to the "main" thread.


-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=ja_JP.UTF-8, LC_CTYPE=ja_JP.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages libopenusb0 depends on:
ii  libc6                         2.7-15     GNU C Library: Shared libraries
ii  libdbus-1-3                   1.2.1-3    simple interprocess messaging syst
ii  libdbus-glib-1-2              0.76-1     simple interprocess messaging syst
ii  libglib2.0-0                  2.16.6-1   The GLib library of C routines
ii  libhal1                       0.5.11-5   Hardware Abstraction Layer - share

libopenusb0 recommends no packages.

libopenusb0 suggests no packages.

-- no debconf information

----- End forwarded message -----

--- End Message ---
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