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Windows 7: Randomly occuring "Memory Management" BSODs?

26 Jun 2013   #31
NoelDP

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
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26 Jun 2013   #32
PelleK63

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
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26 Jun 2013   #34
PelleK63

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
PelleK63

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

 

Code:
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.

Code:
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
PelleK63

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
muhahaa

Windows 7 x64
 
 

Code:
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
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 Randomly occuring "Memory Management" BSODs?




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