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Old 11-23-2011, 09:59 PM   #1
rpark31
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Join Date: Nov 2011
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Default WebEx meeting center client crashes when DL device plugged in

I have a late 2011 MacBook Pro running OS X 10.7.2. I installed the Mac 1.7 beta 5 driver.

I've found that when my USB-DVI adapter is plugged in and I join a WebEx meeting, the meeting client crashes shortly after it starts up.

To avoid the crash, I unplug the adapter, join the WebEx meeting, and then plug the adapter back in.

I've been able to replicate the crashing behavior when I initiate the WebEx client either from Chrome or Firefox.

Here is part of the crash report, if it's helpful:

Process: Meeting Center [1867]
Path: /Users/USER/Library/Application Support/WebEx Folder/*/Meeting Center.app/Contents/MacOS/Meeting Center
Identifier: com.webex.meetingmanager
Version: ??? (10.24.31.0)
Code Type: X86 (Native)
Parent Process: Google Chrome Helper EH [1866]

Date/Time: 2011-11-23 16:46:57.815 -0500
OS Version: Mac OS X 10.7.2 (11C74)
Report Version: 9
Sleep/Wake UUID: 108E11BF-9CFF-498B-A299-31AC87618F62

Interval Since Last Report: 14019 sec
Crashes Since Last Report: 2
Per-App Interval Since Last Report: 118 sec
Per-App Crashes Since Last Report: 2
Anonymous UUID: A8DD371E-4B43-4CA0-9316-C43C84D0BD51

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000

VM Regions Near 0:
--> __PAGEZERO 0000000000000000-0000000000001000 [ 4K] ---/--- SM=NUL /Users/USER/Library/Application Support/WebEx Folder/*/Meeting Center.app/Contents/MacOS/Meeting Center
__TEXT 0000000000001000-00000000000ac000 [ 684K] r-x/rwx SM=COW /Users/USER/Library/Application Support/WebEx Folder/*/Meeting Center.app/Contents/MacOS/Meeting Center

Application Specific Information:
objc[1867]: garbage collection is OFF

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 com.apple.CoreFoundation 0x99395891 CFDataGetBytePtr + 17
1 com.webex.wseclient 0x054e3fe9 CWseMacPerformanceController::GetGPUDeviceInfo(Wse GPUDeviceInfo&) + 423
2 com.webex.svideo 0x0541dadf CMmSVideoClient::UpdateQualityRecord(USERINFO*, MMT_VIDEO_QUALITY_TYPE, void*) + 2253
3 com.webex.svideo 0x054288c4 CMmSVideoClient::RostersAdded(CMmRosterInfo const*, unsigned long) + 2186
4 com.webex.svideo 0x054296e2 CMmSVideoClient::OnRosterChanged(unsigned char, CMmRosterInfo const*, unsigned long) + 48
5 com.webex.msess 0x055eef42 _NEWCS_::CMmSessionThreadProxy::OnRosterChanged_m( unsigned char, CMmRosterInfo const*, unsigned long) + 340
6 com.webex.msess 0x055f7eb1 _NEWCS_::OnRosterChangeEvent::OnEventFire() + 563
7 com.webex.msess 0x0567a520 CCmEventQueueBase::ProcessOneEvent(ICmEvent*) + 240
8 com.webex.msess 0x0567a6cb CCmEventQueueBase::ProcessEvents(std::list<ICmEven t*, std::allocator<ICmEvent*> > const&) + 33
9 com.webex.msess 0x05694902 CCmThreadMacEventPatch::ProcessEventQueue() + 128
10 com.webex.msess 0x05694a1b CCmThreadMacEventPatch::ProcessTimer() + 41
11 com.apple.CoreFoundation 0x993db996 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUN CTION__ + 22
12 com.apple.CoreFoundation 0x993db327 __CFRunLoopDoTimer + 743
13 com.apple.CoreFoundation 0x993ba3e0 __CFRunLoopRun + 1888
14 com.apple.CoreFoundation 0x993b98ec CFRunLoopRunSpecific + 332
15 com.apple.CoreFoundation 0x993b9798 CFRunLoopRunInMode + 120
16 com.apple.HIToolbox 0x92be2a7f RunCurrentEventLoopInMode + 318
17 com.apple.HIToolbox 0x92be9d9b ReceiveNextEventCommon + 381
18 com.apple.HIToolbox 0x92be9c0a BlockUntilNextEventMatchingListInMode + 88
19 com.apple.AppKit 0x91b66040 _DPSNextEvent + 678

Thread 6:
0 libsystem_kernel.dylib 0x93d9fb42 __select + 10
1 com.webex.msess 0x05693548 CCmReactorSelect::RunEventLoop() + 520
2 com.webex.msess 0x056953ee CCmThreadReactor::OnThreadRun() + 382
3 com.webex.msess 0x05693cf1 ACmThread::ThreadProc(void*) + 257
4 libsystem_c.dylib 0x9c545ed9 _pthread_start + 335
5 libsystem_c.dylib 0x9c5496de thread_start + 34


Thread 13:: CVDisplayLink
0 libsystem_kernel.dylib 0x93d9f83e __psynch_cvwait + 10
1 libsystem_c.dylib 0x9c549e78 _pthread_cond_wait + 914
2 libsystem_c.dylib 0x9c549f7b pthread_cond_timedwait_relative_np + 47
3 com.apple.CoreVideo 0x9ac1c2e8 CVDisplayLink::waitUntil(unsigned long long) + 306
4 com.apple.CoreVideo 0x9ac1b43a CVDisplayLink::runIOThread() + 706
5 com.apple.CoreVideo 0x9ac1b161 _ZL13startIOThreadPv + 160
6 libsystem_c.dylib 0x9c545ed9 _pthread_start + 335
7 libsystem_c.dylib 0x9c5496de thread_start + 34

Thread 14:: CVDisplayLink
0 libsystem_kernel.dylib 0x93d9f83e __psynch_cvwait + 10
1 libsystem_c.dylib 0x9c549e78 _pthread_cond_wait + 914
2 libsystem_c.dylib 0x9c549f7b pthread_cond_timedwait_relative_np + 47
3 com.apple.CoreVideo 0x9ac1c2e8 CVDisplayLink::waitUntil(unsigned long long) + 306
4 com.apple.CoreVideo 0x9ac1b43a CVDisplayLink::runIOThread() + 706
5 com.apple.CoreVideo 0x9ac1b161 _ZL13startIOThreadPv + 160
6 libsystem_c.dylib 0x9c545ed9 _pthread_start + 335
7 libsystem_c.dylib 0x9c5496de thread_start + 34

Thread 0 crashed with X86 Thread State (32-bit):
eax: 0x00000000 ebx: 0x054e3e4d ecx: 0x00000000 edx: 0x00000000
edi: 0x00000000 esi: 0x9939588d ebp: 0xbfffb8b8 esp: 0xbfffb8a0
ss: 0x00000023 efl: 0x00010286 eip: 0x99395891 cs: 0x0000001b
ds: 0x00000023 es: 0x00000023 fs: 0x00000000 gs: 0x0000000f
cr2: 0x00000000
Logical CPU: 2

External Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 16
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 8908697
thread_create: 0
thread_set_state: 0

VM Region Summary:
ReadOnly portion of Libraries: Total=226.7M resident=143.7M(63%) swapped_out_or_unallocated=83.0M(37%)
Writable regions: Total=125.1M written=13.7M(11%) resident=33.4M(27%) swapped_out=0K(0%) unallocated=91.8M(73%)

REGION TYPE VIRTUAL
=========== =======
ATS (font support) 31.9M
ATS (font support) (reserved) 4K reserved VM address space (unallocated)
CG backing stores 3324K
CG image 128K
CG raster data 192K
CG shared images 3440K
CoreGraphics 8K
CoreImage 72K
CoreServices 1320K
IOKit 2076K
MALLOC 52.5M
MALLOC guard page 32K
Memory tag=242 12K
Memory tag=243 8K
Memory tag=249 156K
OpenCL 20K
Stack 70.7M
VM_ALLOCATE 16.2M
__CI_BITMAP 80K
__DATA 12.4M
__DATA/__OBJC 260K
__IMAGE 1256K
__IMPORT 4K
__LINKEDIT 50.6M
__OBJC 2772K
__OBJC/__DATA 20K
__PAGEZERO 4K
__TEXT 176.1M
__UNICODE 544K
mapped file 90.1M
shared memory 5456K
shared pmap 5484K
=========== =======
TOTAL 526.4M
TOTAL, minus reserved VM space 526.4M

Model: MacBookPro8,1, BootROM MBP81.0047.B24, 2 processors, Intel Core i7, 2.8 GHz, 8 GB, SMC 1.68f98
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x857F, 0x483634353155363446393333334700000000
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x857F, 0x483634353155363446393333334700000000
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.100.98.75.18)
Bluetooth: Version 4.0.1f4, 2 service, 18 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: TOSHIBA MK7559GSXF, 750.16 GB
Serial ATA Device: HL-DT-ST DVDRW GS31N
USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfa100000 / 3
USB Device: BVU195, 0x17e9 (DisplayLink (UK) Ltd.), 0x0268, 0xfa130000 / 6
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 5
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 8
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0252, 0xfa120000 / 4
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 2
USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfd100000 / 2
USB Device: hub_device, 0x0451 (Texas Instruments), 0x2046, 0xfd120000 / 4
USB Device: USB Receiver, 0x046d (Logitech Inc.), 0xc50e, 0xfd121000 / 6
USB Device: Natural® Ergonomic Keyboard 4000, 0x045e (Microsoft Corporation), 0x00db, 0xfd122000 / 5
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3
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Old 11-25-2011, 02:56 PM   #2
ChristianP
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Posts: 280
Default

Thanks for your report. From the crash log it seems that the WebEx Meeting Center application is using CoreVideo. It's not sure but most likely it's trying to use OpenGL acceleration on the DisplayLink screen, even though is not supported.
We will do a further analysis on this.
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Old 12-03-2011, 06:37 PM   #3
ILS
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Join Date: Dec 2011
Posts: 2
Default Similar Issue - OpenGL/Quartz

We have a similar issue were our web cam software, CamTwist, crashes when DL-195 is selected as the primary desktop, or full screen output is sent to the DL-195.

The only option we have is to set the primary desktop to the attached HDMI monitor and send full screen output to that same screen. Then there is no way to work since the menu bar and dock are covered by full screen.

As stated in the release notes, OpenGL/Quartz may cause problems, which is what most likely is the problem here. Please register my vote for OpenGL/Quartz support in a future release. Thanks!
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