Bug#681985: qemu-system: "-usbdevice tablet" causes bus error

Package: qemu-system
Version: 1.1.0+dfsg-1
Severity: normal

$ qemu-system-x86_64 -usbdevice tablet
Bus error (core dumped)

There seems to be no package with debug symbols so the following
backtrace is probably useless..

$ gdb /usr/bin/qemu-system-x86_64 core_qemu-system-x86_1342617637_11200 -q -ex 'set pagination 0' -ex 'thread apply all bt' -ex quit
Reading symbols from /usr/bin/qemu-system-x86_64...(no debugging symbols found)...done.

warning: core file may not match specified executable file.
[New LWP 11200]
[New LWP 11201]
[New LWP 11202]

warning: Can't read pathname for load map: Input/output error.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/qemu-system-x86_64 -usbdevice tablet'.
Program terminated with signal 7, Bus error.
#0 0x00007f7000698c88 in ?? ()

Thread 3 (Thread 0x7f6fe8dad700 (LWP 11202)):
#0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1 0x00007f70006b9609 in ?? ()
#2 0x00007f6ffbfe2b50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#3 0x00007f6ffbd2d6dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f6ff17af700 (LWP 11201)):
#0 __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:136
#1 0x00007f6ffbfecbde in _L_cond_lock_1001 () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f6ffbfeca0b in __pthread_mutex_cond_lock (mutex=0x7f70013ecec0) at ../nptl/pthread_mutex_lock.c:61
#3 0x00007f6ffbfe7368 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:236
#4 0x00007f70006d6429 in ?? ()
#5 0x00007f7000732d4f in ?? ()
#6 0x00007f6ffbfe2b50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#7 0x00007f6ffbd2d6dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7000514900 (LWP 11200)):
#0 0x00007f7000698c88 in ?? ()
#1 0x00007f70006992d6 in ?? ()
#2 0x00007f70006d74ab in ?? ()
#3 0x00007f70006d76fe in ?? ()
#4 0x00007f70006ab05f in ?? ()
#5 0x00007f70005ca473 in main ()

Debian Release: 6.0.5
APT prefers stable
APT policy: (990, 'stable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-3-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages qemu-system depends on:
ii ipx 1.0.0+git-20120202.f6840ba-3 PXE boot firmware - ROM images for
ii lib 0.3.109-3 Linux kernel AIO access library -
ii lib 1.0.25-3 shared library for ALSA applicatio
ii lib 4.99-2 Library to use the BlueZ Linux Blu
ii lib 4.4-4 braille display access via BRLTTY
ii lib 2.13-33 Embedded GNU C Library: Shared lib
ii lib 7.26.0-1 easy-to-use client-side URL transf
ii lib 1.3.0-2 Flat Device Trees manipulation lib
ii lib 8.0.3-1 free implementation of the OpenGL
ii lib 2.32.3-1 GLib library of C routines
ii lib 2.12.20-1 GNU TLS library - runtime library
ii lib 1.4.0-3 iSCSI client shared library
ii lib 5.9-10 shared libraries for terminal hand
ii lib 2.0-3 PulseAudio client libraries
ii lib 0.43-1 RADOS distributed object store cli
ii lib 0.43-1 RADOS block device client library
ii lib 2.1.25.dfsg1-4+b1 Cyrus SASL - authentication abstra
ii lib 1.2.15-5 Simple DirectMedia Layer
ii lib 0.10.1-2 Implements the server side of the
ii lib 5.9-10 shared low-level terminfo library
ii lib 0.4.3-2 Parser for the usbredir protocol (
ii lib 2.20.1-5.1 Universally Unique ID library
ii lib 2.3.2-4 Virtual Distributed Ethernet - Plu
ii lib 2:1.5.0-1 X11 client-side library
ii lib 4.1.3~rc1+hg-20120614.a9c0a89c08f2-4 Public libs for Xen
ii lib 4.1.3~rc1+hg-20120614.a9c0a89c08f2-4 Xenstore communications library fo
ii ope 1.0+svn1060-1 PowerPC Open Firmware
ii ope 1.0+svn1060-1 SPARC Open Firmware
ii ope 0.4.1-6 OpenFirmware emulator for PowerPC
ii qem 1.1.0+dfsg-1 QEMU keyboard maps
ii sea 1.7.0-1 Legacy BIOS implementation
ii vga 0.7a-3 VGA BIOS software for the Bochs an
ii zli 1:1.2.7.dfsg-13 compression library - runtime

Versions of packages qemu-system recommends:
ii qemu-utils 1.1.0+dfsg-1 QEMU utilities
pn vde2 <none> (no description available)

Versions of packages qemu-system suggests:
pn samba <none> (no description available)



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