BSOD ntoskrnl.exe PFN_LIST_CORRUPT & IRQL_GT_ZERO_AT_SYSTEM_SERVICE

[dailyplix]

BSOD ntoskrnl.exe PFN_LIST_CORRUPT & IRQL_GT_ZERO_AT_SYSTEM_SERVICE

Hello,

I just received two BSOD in a row and I'm wondering what caused these and how to prevent these errors. The only thing I recall doing recently is installing the latest NVIDIA drivers (353.62) for my GTX 670.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1033

Additional information about the problem:
BCCode: 4a
BCP1: 00000000770EDC2A
BCP2: 0000000000000002
BCP3: 0000000000000000
BCP4: FFFFF8800930BB60
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\080115-18486-01.dmp
C:\Users\Fate\AppData\Local\Temp\WER-28688-0.sysdata.xml

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[FONT=Segoe UI, Arial]On Sat 8/1/2015 4:18:24 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\080115-18486-01.dmp
This was probably caused by the following module: [FONT=Segoe UI, Arial]ntoskrnl.exe[/FONT] (nt+0x748C0)
Bugcheck code: 0x4A (0x770EDC2A, 0x2, 0x0, 0xFFFFF8800930BB60)
Error: [FONT=Segoe UI, Arial]IRQL_GT_ZERO_AT_SYSTEM_SERVICE[/FONT]
file path: C:\Windows\system32\ntoskrnl.exe
product: [FONT=Segoe UI, Arial]Microsoft® Windows® Operating System[/FONT]
company: [FONT=Segoe UI, Arial]Microsoft Corporation[/FONT]
description: NT Kernel & System
Bug check description: This indicates that a thread is returning to user mode from a system call when its IRQL is still above PASSIVE_LEVEL.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.


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[FONT=Segoe UI, Arial]On Sat 8/1/2015 4:15:25 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\080115-16021-01.dmp
This was probably caused by the following module: [FONT=Segoe UI, Arial]ntoskrnl.exe[/FONT] (nt+0x748C0)
Bugcheck code: 0x4E (0x99, 0x2AD1AD, 0x2, 0xC2F02)
Error: [FONT=Segoe UI, Arial]PFN_LIST_CORRUPT[/FONT]
file path: C:\Windows\system32\ntoskrnl.exe
product: [FONT=Segoe UI, Arial]Microsoft® Windows® Operating System[/FONT]
company: [FONT=Segoe UI, Arial]Microsoft Corporation[/FONT]
description: NT Kernel & System
Bug check description: This indicates that the page frame number (PFN) list is corrupted.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This might be a case of memory corruption. More often memory corruption happens because of software errors in buggy drivers, not because of faulty RAM modules.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
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[dailyplix]

[FONT=Segoe UI, Arial]Anyone know[FONT=Segoe UI, Arial] what's going on? I tried switchin[FONT=Segoe UI, Arial]g to an older [FONT=Segoe UI, Arial]grap[FONT=Segoe UI, Arial]hic card and[FONT=Segoe UI, Arial] ram and go[FONT=Segoe UI, Arial]t this recently. I dunno if it's a driver or what?[/FONT][/FONT][/FONT][/FONT][/FONT][/FONT]

On Mon 8/3/2015 6:52:48 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\080315-16988-01.dmp
This was probably caused by the following module: [FONT=Segoe UI, Arial]ntoskrnl.exe[/FONT] (nt+0x748C0)
Bugcheck code: 0x4A (0x77C9DC2A, 0x2, 0x0, 0xFFFFF880220DCB60)
Error: [FONT=Segoe UI, Arial]IRQL_GT_ZERO_AT_SYSTEM_SERVICE[/FONT]
file path: C:\Windows\system32\ntoskrnl.exe
product: [FONT=Segoe UI, Arial]Microsoft® Windows® Operating System[/FONT]
company: [FONT=Segoe UI, Arial]Microsoft Corporation[/FONT]
description: NT Kernel & System
Bug check description: This indicates that a thread is returning to user mode from a system call when its IRQL is still above PASSIVE_LEVEL.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.

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