Trying to get started- "Exception Access Violation"

[md365]

I've downloaded the client for the first time and I have a WU but it just sits on "Ready" and "Waiting on FahCore Update." In the log I have been getting "03:20:27:ERROR:WU00:FS00:Exception: Win32: 0xc0000005: Exception access violation." I've tried restarting, uninstalling/reinstalling, ensuring the app has in my firewall, and even turning off my firewall. Thanks in advance for any advice.

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*********************** Log Started 2021-09-02T03:10:40Z ***********************
03:10:40:******************************* libFAH ********************************
03:10:40:           Date: Oct 20 2020
03:10:40:           Time: 13:36:55
03:10:40:       Revision: 5ca109d295a6245e2a2f590b3d0085ad5e567aeb
03:10:40:         Branch: master
03:10:40:       Compiler: Visual C++ 2015
03:10:40:        Options: /TP /nologo /EHa /wd4297 /wd4103 /O2 /Zc:throwingNew /MT
03:10:40:       Platform: win32 10
03:10:40:           Bits: 32
03:10:40:           Mode: Release
03:10:40:****************************** FAHClient ******************************
03:10:40:        Version: 7.6.21
03:10:40:         Author: Joseph Coffland <[email protected]>
03:10:40:      Copyright: 2020 foldingathome.org
03:10:40:       Homepage: https://foldingathome.org/
03:10:40:           Date: Oct 20 2020
03:10:40:           Time: 13:41:04
03:10:40:       Revision: 6efbf0e138e22d3963e6a291f78dcb9c6422a278
03:10:40:         Branch: master
03:10:40:       Compiler: Visual C++ 2015
03:10:40:        Options: /TP /nologo /EHa /wd4297 /wd4103 /O2 /Zc:throwingNew /MT
03:10:40:       Platform: win32 10
03:10:40:           Bits: 32
03:10:40:           Mode: Release
03:10:40:         Config: C:\ProgramData\FAHClient\config.xml
03:10:40:******************************** CBang ********************************
03:10:40:           Date: Oct 20 2020
03:10:40:           Time: 11:36:18
03:10:40:       Revision: 7e4ce85225d7eaeb775e87c31740181ca603de60
03:10:40:         Branch: master
03:10:40:       Compiler: Visual C++ 2015
03:10:40:        Options: /TP /nologo /EHa /wd4297 /wd4103 /O2 /Zc:throwingNew /MT
03:10:40:       Platform: win32 10
03:10:40:           Bits: 32
03:10:40:           Mode: Release
03:10:40:******************************* System ********************************
03:10:40:            CPU: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
03:10:40:         CPU ID: GenuineIntel Family 6 Model 140 Stepping 1
03:10:40:           CPUs: 8
03:10:40:         Memory: 15.80GiB
03:10:40:    Free Memory: 11.66GiB
03:10:40:        Threads: WINDOWS_THREADS
03:10:40:     OS Version: 6.2
03:10:40:    Has Battery: true
03:10:40:     On Battery: false
03:10:40:     UTC Offset: -5
03:10:40:            PID: 10792
03:10:40:            CWD: C:\ProgramData\FAHClient
03:10:40:  Win32 Service: false
03:10:40:             OS: Windows 10 Home
03:10:40:        OS Arch: AMD64
03:10:40:           GPUs: 1
03:10:40:          GPU 0: Bus:0 Slot:2 Func:0 INTEL:1 TGL GT2 [Iris(R) Iris Xe Graphics]
03:10:40:           CUDA: Not detected: Failed to open dynamic library 'nvcuda.dll': The
03:10:40:                 specified module could not be found.
03:10:40:
03:10:40:OpenCL Device 0: Platform:0 Device:0 Bus:NA Slot:NA Compute:3.0 Driver:27.20
03:10:40:***********************************************************************
03:10:40:<config>
03:10:40:  <!-- Slot Control -->
03:10:40:  <power v='FULL'/>
03:10:40:
03:10:40:  <!-- User Information -->
03:10:40:  <passkey v='*****'/>
03:10:40:  <team v='234980'/>
03:10:40:  <user v='osbwkxwgnocl'/>
03:10:40:
03:10:40:  <!-- Folding Slots -->
03:10:40:  <slot id='0' type='CPU'/>
03:10:40:  <slot id='1' type='GPU'>
03:10:40:    <pci-bus v='0'/>
03:10:40:    <pci-slot v='2'/>
03:10:40:  </slot>
03:10:40:</config>
03:10:40:Trying to access database...
03:10:40:Successfully acquired database lock
03:10:40:FS00:Initialized folding slot 00: cpu:7
03:10:40:WARNING:FS01:Guessing ambiguous GPU to OpenCL device mapping for 01: gpu:0:2 TGL GT2 [Iris(R) Iris Xe Graphics].  Consider upgrading your graphics driver or manually setting ``opencl-index`` in this slot's configuration.
03:10:40:WARNING:FS01:Disabling beta GPU slot 01: gpu:0:2 TGL GT2 [Iris(R) Iris Xe Graphics].  Beta GPUs can be tested for no points by setting ``gpu-beta=true`` in the configuration.
03:10:40:WU00:FS00:Downloading core from http://cores.foldingathome.org/win/64bit-avx2-256/a8-0.0.12/Core_a8.fah
03:10:40:WU00:FS00:Connecting to cores.foldingathome.org:80
03:10:41:WU00:FS00:FahCore a8: Downloading 7.72MiB
03:10:47:WU00:FS00:FahCore a8: 25.09%
03:10:53:WU00:FS00:FahCore a8: 55.03%
03:10:59:WU00:FS00:FahCore a8: 84.97%
03:11:00:3:127.0.0.1:New Web session
03:11:02:WU00:FS00:FahCore a8: Download complete
03:11:02:ERROR:WU00:FS00:unknown exception
03:11:40:WU00:FS00:Downloading core from http://cores.foldingathome.org/win/64bit-avx2-256/a8-0.0.12/Core_a8.fah
03:11:40:WU00:FS00:Connecting to cores.foldingathome.org:80
03:11:40:WU00:FS00:FahCore a8: Downloading 7.72MiB
03:11:46:WU00:FS00:FahCore a8: 25.90%
03:11:52:WU00:FS00:FahCore a8: 63.12%
03:11:58:WU00:FS00:FahCore a8: 92.25%
03:12:00:WU00:FS00:FahCore a8: Download complete
03:12:00:ERROR:WU00:FS00:Exception: Win32: 0xc0000005: Exception access violation
03:13:17:WU00:FS00:Downloading core from http://cores.foldingathome.org/win/64bit-avx2-256/a8-0.0.12/Core_a8.fah
03:13:17:WU00:FS00:Connecting to cores.foldingathome.org:80
03:13:17:WU00:FS00:FahCore a8: Downloading 7.72MiB
03:13:23:WU00:FS00:FahCore a8: 28.32%
03:13:29:WU00:FS00:FahCore a8: 60.69%
03:13:35:WU00:FS00:FahCore a8: 80.92%
03:13:40:WU00:FS00:FahCore a8: Download complete
03:13:40:ERROR:WU00:FS00:Exception: Win32: 0xc0000005: Exception access violation
03:15:54:WU00:FS00:Downloading core from http://cores.foldingathome.org/win/64bit-avx2-256/a8-0.0.12/Core_a8.fah
03:15:54:WU00:FS00:Connecting to cores.foldingathome.org:80
03:15:55:WU00:FS00:FahCore a8: Downloading 7.72MiB
03:16:01:WU00:FS00:FahCore a8: 25.90%
03:16:07:WU00:FS00:FahCore a8: 46.94%
03:16:13:WU00:FS00:FahCore a8: 63.93%
03:16:19:WU00:FS00:FahCore a8: 83.35%
03:16:23:WU00:FS00:FahCore a8: Download complete
03:16:23:ERROR:WU00:FS00:Exception: Win32: 0xc0000005: Exception access violation
03:20:09:WU00:FS00:Downloading core from http://cores.foldingathome.org/win/64bit-avx2-256/a8-0.0.12/Core_a8.fah
03:20:09:WU00:FS00:Connecting to cores.foldingathome.org:80
03:20:09:WU00:FS00:FahCore a8: Downloading 7.72MiB
03:20:15:WU00:FS00:FahCore a8: 40.46%
03:20:21:WU00:FS00:FahCore a8: 73.64%
03:20:27:WU00:FS00:FahCore a8: 97.11%
03:20:27:WU00:FS00:FahCore a8: Download complete
03:20:27:ERROR:WU00:FS00:Exception: Win32: 0xc0000005: Exception access violation

[psaam0001]

I do not know if this will resolve your issue, but here is a link to a thread that may give you a few ideas that may help: viewtopic.php?f=19&t=35767

Should that not help, then please feel free to let us know, and one of the more experienced members will chime in to offer assistance.

Paul

[PaulTV]

Welcome to the forum!

Your folding client shows a crash on the point right after downloading the core, when it tries to unpack it - the core is the piece of software that actually runs the folding job. Your virus scanner may be the culprit here, putting the core download in quarantine. In virtually all virus scanners, you can exclude directories from being checked by the scanner. Could you please exclude c:\ProgramData\FAHClient?

[md365]

Welcome to the forum!

Your folding client shows a crash on the point right after downloading the core, when it tries to unpack it - the core is the piece of software that actually runs the folding job. Your virus scanner may be the culprit here, putting the core download in quarantine. In virtually all virus scanners, you can exclude directories from being checked by the scanner. Could you please exclude c:\ProgramData\FAHClient?

I excluded the FAHClient directory, which didn't work. I even turned off my virus scanner entirely and got the exception again. I'm definitely a bit baffled.

[PaulTV]

Uh, yeah. This is what I'd expect:

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20:24:31:WU00:FS00:Downloading core from http://cores.foldingathome.org/win/64bit-avx2-256/a8-0.0.12/Core_a8.fah
20:24:31:WU00:FS00:Connecting to cores.foldingathome.org:80
20:24:32:WU00:FS00:FahCore a8: Downloading 7.72MiB
20:24:37:WU00:FS00:FahCore a8: Download complete
20:24:37:WU00:FS00:Valid core signature
20:24:37:WU00:FS00:Unpacked 20.93MiB to cores/cores.foldingathome.org/win/64bit-avx2-256/a8-0.0.12/Core_a8.fah/FahCore_a8.exe
20:24:37:WU00:FS00:Unpacked 2.64MiB to cores/cores.foldingathome.org/win/64bit-avx2-256/a8-0.0.12/Core_a8.fah/libfftw3f-3.dll
20:24:37:WU00:FS00:Unpacked 172.88KiB to cores/cores.foldingathome.org/win/64bit-avx2-256/a8-0.0.12/Core_a8.fah/vcomp140.dll
20:24:37:WU00:FS00:Starting

So at the point of validating the signature, your client barfs. It does not report a failure in the download, it looks like it can't access the downloaded file. EDIT: or maybe it downloaded in memory (it's only 8MB), and can't actually write it to the location where it wants to unpack (C:\ProgramData\FAHClient\cores\cores.foldingathome.org\win\64bit-avx2-256).

Getting more exotic in the suggestions: do you have checks like IPS/IDS or virus checks active in your router? No, I don't understand either, just repeating what I read before on the forum, regarding connection/download issues

[psaam0001]

One thing that I did see, is that you may need to upgrade the drivers for your CPU/iGPU (Which I saw was an Intel 11th Generation Core i7). The latest non-beta drivers for that CPU can be downloaded here: https://www.intel.com/content/www/us/en ... ivers.html

And here is why (quoted from md365's original post):

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03:10:40:WARNING:FS01:Guessing ambiguous GPU to OpenCL device mapping for 01: gpu:0:2 TGL GT2 [Iris(R) Iris Xe Graphics].  Consider upgrading your graphics driver or manually setting ``opencl-index`` in this slot's configuration.
03:10:40:WARNING:FS01:Disabling beta GPU slot 01: gpu:0:2 TGL GT2 [Iris(R) Iris Xe Graphics].  Beta GPUs can be tested for no points by setting ``gpu-beta=true`` in the configuration.

Paul

[PaulTV]

It seems there was a more generic error with the core files on server, which should have been fixed. Do you still see this problem?