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Windows 7: Randomly occuring "Memory Management" BSODs?

26 Jun 2013   #31

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10

Don't need Swedish - I speak Computer :)
Nothing drastically wrong there.
The most important thing is that there are no 'bad sectors' - skadade sektorer - which would indicate a failing drive.
The other errors there could account for the odd SFC/CBS results - so I'll bow out of the thread again and hand you back to the BSOD specialists.

My System SpecsSystem Spec
26 Jun 2013   #32

Windows 7 Home Premium x64

Ok and thank you for your help

// PelleK63
My System SpecsSystem Spec
26 Jun 2013   #33
x BlueRobot


Thanks Noel :)

PelleK63, have you had any other BSODs yet?
My System SpecsSystem Spec

26 Jun 2013   #34

Windows 7 Home Premium x64

Hello x Bluerobot,

No, the PC has been running with the driver verifier on for close to 18 hours now.

So far, it's been stable. I would be happy but at the same time mystified if I didn't get any more BSODs now.

I would always wonder what the h**l the problem was
My System SpecsSystem Spec
26 Jun 2013   #35
x BlueRobot


That's great to know, let's hope it stays without BSODs
My System SpecsSystem Spec
04 Jul 2013   #36

Windows 7 Home Premium x64

Hello again,

After running stable for nearly a week, I just got a BSOD again. Fortunately, this time I got a new crash dump file. New SF Diag File attached.

Regards // PelleK63
My System SpecsSystem Spec
04 Jul 2013   #37
x BlueRobot


BugCheck 1A, {41790, fffffa800538e8a0, ffff, 0}

Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+35084 )
It's the same BSOD we have had recently, the text is green is the page which is corrupted, using !poolval we can see that a allocation was most likely overwritten.

6: kd> !poolval fffffa800538e8a0
Pool page fffffa800538e8a0 region is Nonpaged pool

Validating Pool headers for pool page: fffffa800538e8a0

Pool page [ fffffa800538e000 ] is __inVALID.

Analyzing linked list...
[ fffffa800538e000 ]: invalid previous size [ 0x80 ] should be [ 0x0 ]
[ fffffa800538e000 --> fffffa800538e220 (size = 0x220 bytes)]: Corrupt region

Scanning for single bit errors...
[ fffffa800538e000 ]: previous size [ 0x80 ] should be [ 0x0 ]
I would run Driver Verifier again for around 36 hours instead, something is corrupting a page of pool within the page table.
My System SpecsSystem Spec
04 Jul 2013   #38

Windows 7 Home Premium x64

Ok, I'll turn driver verifier on again and will leave it on until the next BSOD occurs.

Would be nice to get to the bottom of this :)
My System SpecsSystem Spec
05 Jul 2013   #39
x BlueRobot


I know, at least we have some consistency with the types of BSODs going on here :)
My System SpecsSystem Spec
05 Jul 2013   #40

Windows 7 x64

2: kd> dt nt!_MMPFN fffffa80052e4bf0
   +0x000 u1               : <unnamed-tag>
   +0x008 u2               : <unnamed-tag>
   +0x010 PteAddress       : 0xfffff6fb`41ffbbb8 _MMPTE
   +0x010 VolatilePteAddress : 0xfffff6fb`41ffbbb8 Void
   +0x010 Lock             : 0n1107278776
   +0x010 PteLong          : 0xfffff6fb`41ffbbb8
   +0x018 u3               : <unnamed-tag>
   +0x01c UsedPageTableEntries : 0xffff
   +0x01e VaType           : 0 ''
   +0x01f ViewCount        : 0 ''
   +0x020 OriginalPte      : _MMPTE
   +0x020 AweReferenceCount : 0n128
   +0x028 u4               : <unnamed-tag>
The cause of the bugcheck "1A (41790)" is the PFN UsedPageTableEntries counter going below zero (see here). If Verifier doesn't detect the violator, it might simply not have a test for this kind of bug. It looks like a page table entry being deleted more than once.
My System SpecsSystem Spec

 Randomly occuring "Memory Management" BSODs?

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