Bug 711490

Description of problem:
Complete system Halt of Kernel 2.6.38.7


Version-Release number of selected component (if applicable):
2.6.38.7-30.fc15.x86_64

How reproducible:
Login to KDE, set the screen saver in the settings panel to Euphoria, a opengl screen saver.

Add Lock Screen saver Icon to your KDE desktop, Lock the screen.

Eurphoria will run.   Type in your password to unlock the screen.

Attempt to lock the screen again, kernel will crash.

Steps to Reproduce:
1.Login to KDE desktop, lock the screen with a screen saver Euphoria
2.Unlock the Screen
3. Immediately Lock it again, kernel crashes
  
Actual results:
Crashes the kernel

Expected results:
Should not crash the kernel.

Additional info:
Hardware:

00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 03)
00:1f.2 IDE interface: Intel Corporation ICH9M/M-E 2 port SATA IDE Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
00:1f.5 IDE interface: Intel Corporation ICH9M/M-E 2 port SATA IDE Controller (rev 03)
01:00.0 PCI bridge: PLX Technology, Inc. PEX 8624 24-lane, 6-Port PCI Express Gen 2 (5.0 GT/s) Switch [ExpressLane] (rev ab)
02:00.0 PCI bridge: PLX Technology, Inc. PEX 8624 24-lane, 6-Port PCI Express Gen 2 (5.0 GT/s) Switch [ExpressLane] (rev ab)
02:04.0 PCI bridge: PLX Technology, Inc. PEX 8624 24-lane, 6-Port PCI Express Gen 2 (5.0 GT/s) Switch [ExpressLane] (rev ab)
02:05.0 PCI bridge: PLX Technology, Inc. PEX 8624 24-lane, 6-Port PCI Express Gen 2 (5.0 GT/s) Switch [ExpressLane] (rev ab)
03:00.0 VGA compatible controller: ATI Technologies Inc Device 9509
06:00.0 VGA compatible controller: ATI Technologies Inc Device 9509
06:00.1 Audio device: ATI Technologies Inc Radeon HD 3870 Audio device
08:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8055 PCI-E Gigabit Ethernet Controller (rev 12)
0b:00.0 Network controller: Intel Corporation Ultimate N WiFi Link 5300
0c:00.0 SATA controller: JMicron Technology Corp. JMB360 AHCI Controller (rev 02)
0e:07.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
0e:07.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
0e:07.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12)

Video Adapter:

OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD RV670
OpenGL version string: 2.1 Mesa 7.11-devel
OpenGL shading language version string: 1.20
OpenGL extensions:

(ATI 3870x2)

Quad Core Qx9300

Fedora 15 distro.