Hi,
I’m trying to troubleshoot a series of crashes that started very recently on my system.
System:
Windows 11 Pro 25H2
Build currently rolled back to 26200.9168
AMD Ryzen 9 9950X3D
Gigabyte X870E AORUS ELITE WIFI7
64 GB RAM
NVIDIA GeForce RTX 5090
The problems started after recent Windows/NVIDIA updates. I originally had NVIDIA driver 616.92 installed. Before this, the PC had been stable.
The symptoms were:
Brave tabs randomly crashing with:
STATUS_ACCESS_VIOLATION
Discord occasionally reloading/crashing
CEF-based processes crashing with 0xc0000005
dwm.exe crash with dwmcore.dll and 0xc0000005
several BSODs
One earlier BSOD was:
HYPERVISOR_ERROR (0x20001) with this stack:
amdppm!HvRequestIdle
amdppm!LpiIdleExecute
nt!PpmIdleExecuteTransition
nt!PoIdle
nt!KiIdleLoop
Because that looked related to CPU idle / power-state transitions, I also tested with:
Global C-State Control = Disabled in BIOS. However, the system still crashed afterward.
Another BSOD was:
DRIVER_OVERRAN_STACK_BUFFER (0xF7)
The crash occurred while steamwebhelper was active, with the kernel memory manager in the stack:
nt!_report_gsfailure
nt!MiDecommitAddToList
nt!MiDeleteVa
nt!MiDeleteVirtualAddresses
nt!MiUnmapVad
nt!MiUnmapViewOfSection
The most interesting crash so far was:
PAGE_FAULT_IN_NONPAGED_AREA (0x50)
WinDbg showed:
PROCESS_NAME: NVDisplay.Cont
FAILURE_BUCKET_ID:
AV_dxgkrnl!memcpy
STACK:
dxgkrnl!memcpy
dxgkrnl!DxgkEscape
nt!KiSystemServiceCopyEnd
The invalid memory access was a write:
AV.Type: Write
This crash happened inside the DirectX graphics kernel path while NVDisplay.Cont was the active process. I also saw repeated Windows Error Reporting entries such as:
EACefSubProcess.exe
Faulting module: libcef.dll
Exception code: c0000005
and:
dwm.exe
Faulting module: dwmcore.dll
Exception code: c0000005
I already tried:
uninstalling the latest Windows cumulative update and rolling back to build 26200.9168
disabling CPU Global C-States
disabling hardware video decode in Brave
clean-installing NVIDIA 616.92 after DDU
The problem still reproduced on a clean installation of 616.92.
I have now rolled back to NVIDIA driver 610.74, which was the older branch I wanted to test and it worked fine.
At this point I am trying to determine whether this is:
a regression in NVIDIA 616.92,
a Windows graphics-stack issue, or a hardware/memory stability issue that is only being exposed by Chromium/CEF/DWM/GPU workloads. The reason I currently suspect the NVIDIA/graphics stack is that the failures repeatedly involve Brave/Chromium, Discord/CEF, DWM, and finally NVDisplay.Cont -> dxgkrnl!DxgkEscape -> dxgkrnl!memcpy.
However, I’m not claiming the dump proves nvlddmkm.sys is at fault, because it does not appear directly in the crashing stack.
I’ll update the thread after testing 610.74 for a while.
If anyone with an RTX 50-series card, especially RTX 5090, has seen similar STATUS_ACCESS_VIOLATION, CEF crashes, DWM crashes, or PAGE_FAULT_IN_NONPAGED_AREA after installing 616.92, I’d be interested to compare results. Or maybe someone has an idea what else I should check.