[no Bug] BSOD IRQL_GT_ZERO_AT_SYSTEM_SERVICE during HD QAM channel scan (1 Viewer)

GuyPaddock

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MediaPortal Version: 1.0.5.25080 (1.1.0 RC1)
MediaPortal Skin: N/A (Happens in TV Server Config)
Windows Version: Vista 7 Home Premium RTM 64-bit (Windows 6.1, build 7600) with latest updates
CPU Type: Intel Core 2 Quad Core Q8200 2.33 GHz
HDD: Samsung HD642JJ 600 GB (360 GB Free)
Memory: 8 GB
Motherboard: HP Pavilion a6857c NC829AAR-ABA (ASUS OEM)
Video Card: Galaxy NVIDIA GeForce GT220
Video Card Driver: NVIDIA 196.34 (8.17.11.9634)
Sound Card: Realtek On-board HD Audio (Realtek ALC 888S chipset)
Sound Card AC3: Realtek On-board HD Audio (Realtek ALC 888S chipset)
Sound Card Driver: Realtek High Definition Audio (6.0.1.5910)
1. TV Card: ATI Theater 600 PCI-E
1. TV Card Type: Hybrid ClearQAM/Analog (ATSC and QAM)
1. TV Card Driver: ATI Unified AVStream Driver (6.14.10.394)
2. TV Card: N/A
2. TV Card Type: N/A
2. TV Card Driver: N/A
3. TV Card: N/A
3. TV Card Type: N/A
3. TV Card Driver: N/A
4. TV Card: N/A
4. TV Card Type: N/A
4. TV Card Driver: N/A
MPEG2 Video Codec: N/A
MPEG2 Audio Codec: N/A
h.264 Video Codec: N/A
Satelite/CableTV Provider: Time Warner Cable, Rochester, NY
HTPC Case: HP Pavilion a6857c OEM case
Cooling: 1 CPU fan, 1 system fan, 1 PSU fan
Power Supply: Antec Earthwatts 650 Watt 80PLUS (EA-650)
Remote: N/A
TV: Optoma HD7100 Projector
TV - HTPC Connection: HDMI

As mentioned above, we have an ATI Theater 500 PCI-E hybrid tuner (ClearQAM / Analog). When having MediaPortal RC1 perform a scan for ClearQAM channels on Time Warner Cable, we consistently receive a Windows BSOD with stop code 4A (IRQL_GT_ZERO_AT_SYSTEM_SERVICE). Typically, the error shows up as the seventh channel in the QAM HRC-3 frequency table is being tested. No BSOD occurs when doing a scan for analog channels on the same tuner (70 analog channels are successfully identified without issue).

I will attach the crash dump, and the analysis from WinDBG.
 

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  • 040410-29374-01.zip
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GuyPaddock

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Re: BSOD IRQL_GT_ZERO_AT_SYSTEM_SERVICE during ATSC HD channel scan

Logs attached, though I don't know if they will help.
 

tourettes

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  • January 7, 2005
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    Check if there are newer drivers available for the tuner card (software cannot itself cause BSOD, instead it requires buggy drivers to be used).
     

    GuyPaddock

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    I am using the latest ATI Theater drivers. BeyondTV 4.9.2 was able to scan for HD channels without a BSOD.

    Additionally, software *can* cause a BSOD. Both drivers and system services (including the MediaPortal TVService.exe, which is the faulting process in this report) can cause a BSOD, and they are certainly not hardware.
     

    tourettes

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  • Premium Supporter
  • January 7, 2005
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    Additionally, software *can* cause a BSOD. Both drivers and system services (including the MediaPortal TVService.exe, which is the faulting process in this report) can cause a BSOD, and they are certainly not hardware.

    TV service is not running in kernel conext -> not possible for it to cause a BSOD. Only if drivers are broken and TV service triggers that bug with its own behavior the BSOD is possible.
     

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