simple-scan crashed with SIGSEGV in g_closure_invoke()

[T Loften]

When you press the button to start scanning ( simple scan ) 50/50 will clash with Gemtek WUBR-177G [Ralink RT2571W]... both usb devices will crash and stop working ... .... Need to re-start before the will start working again .

below is - ls usb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 045e:075d Microsoft Corp. LifeCam Cinema
Bus 001 Device 004: ID 04a9:1717 Canon, Inc. MP510 <----- Scanner
Bus 001 Device 005: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer
Bus 001 Device 006: ID 15a9:0004 Gemtek WUBR-177G [Ralink RT2571W] <----- Wifi Card
Bus 003 Device 002: ID 045e:0707 Microsoft Corp. Wireless Laser Mouse 8000
Bus 003 Device 003: ID 045e:0717 Microsoft Corp.
Bus 003 Device 004: ID 045e:0714 Microsoft Corp.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: simple-scan 3.2.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-10.17-generic 3.2.1
Uname: Linux 3.2.0-10-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Mon Jan 23 12:43:08 2012
DriverPackageVersions:
 libsane 1.0.22-7ubuntu1
 libsane-extras N/A
 hplip 3.11.12-2
 hpoj N/A
ExecutablePath: /usr/bin/simple-scan
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: HP Pavilion 061 EX259AA-ABA s7520n
ProcCmdline: simple-scan
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-10-generic root=UUID=8bfe9424-39f2-40ab-802d-f39fbf07a15a ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x415a8a: movl $0x1,0x18(%rax)
 PC (0x00415a8a) ok
 source "$0x1" ok
 destination "0x18(%rax)" (0xaaaaaaaaaaaaaac2) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: simple-scan
StacktraceTop:
 ?? ()
 g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: simple-scan crashed with SIGSEGV in g_closure_invoke()
UpgradeStatus: Upgraded to precise on 2012-01-19 (3 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 03/14/2006
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 3.04
dmi.board.name: Opal
dmi.board.vendor: ASUSTek Computer INC.
dmi.board.version: 1.02
dmi.chassis.type: 3
dmi.chassis.version: 1111
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr3.04:bd03/14/2006:svnHPPavilion061:pnEX259AA-ABAs7520n:pvr0nx1104RE101OPAL00:rvnASUSTekComputerINC.:rnOpal:rvr1.02:cvn:ct3:cvr1111:
dmi.product.name: EX259AA-ABA s7520n
dmi.product.version: 0nx1104RE101OPAL 00
dmi.sys.vendor: HP Pavilion 061

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #843361, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.