Question BSOD - - - "Unexpected Kernel Mode Trap" ?

[Phenom16]

Please help me find the cause of my recent BSOD.



MemTest86, sfc and chkdsk did not find any issues.



Link to the minidump file: https://drive.google.com/drive/folders/1n5BZ_Q0DqiL5aPfvmk8xwYYJKebgPj2K?usp=sharing



Thank you!

 

[ubuysa]

Please make the file public in Google Drive (anyone with the link).

A description of what was happening at the time would help. Also please upload all dumps in C:\Windows\Minidumps that are less than a month old.

 

[Phenom16]

Done all of it. Please check again.

Crashes are random.

 

[ubuysa]

I've replied to your issue on another forum. Those of us who can analyse BSOD dumps are present on almost all of these types of forum, so cross-posting doesn't really help.

 

[bicy]

The last BSoD seems to have been caused by 'bit defender'. It is also obvious that there are calls related to CPU's power management in general.

0xfffff98f8eb8efa8 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8efd8 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f008 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f038 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f068 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f098 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f0c8 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f0f8 : 0xfffff80622c6b380 : nt!CcGetVirtualAddress+0x1c0
Unable to load image \SystemRoot\system32\DRIVERS\atc.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for atc.sys

 

[Phenom16]

The last BSoD seems to have been caused by 'bit defender'. It is also obvious that there are calls related to CPU's power management in general.

0xfffff98f8eb8efa8 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8efd8 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f008 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f038 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f068 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f098 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f0c8 : 0xfffff80622e0d240 : nt!KiPageFault
0xfffff98f8eb8f0f8 : 0xfffff80622c6b380 : nt!CcGetVirtualAddress+0x1c0
Unable to load image \SystemRoot\system32\DRIVERS\atc.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for atc.sys

Thank you for your insight.

I have already uninstalled BitDefender. What do I do about the CPU's power management?

 

[ubuysa]

CPU power management is a good call, two of the dumps fail coming out of the idle loop, the third probably does too. Since this is a laptop your BIOS probably doesn't let you disable processor C-States, so instead in your Windows power option profile change the Processor Power Management values so that the minimum AND maximum values are 99% and see whether that stops the BSODs. What this does is stop the processors entering a lower power state at idle, the cost is increased power use and increased heat output - not good things in a laptop.

Why 99% and not 100%? I know that for most people 99% stops the processors entering lower power states, I'm not so sure whether 100% does. If setting both to 99% does stop the BSODs then you can try 100%.

 

[Phenom16]

CPU power management is a good call, two of the dumps fail coming out of the idle loop, the third probably does too. Since this is a laptop your BIOS probably doesn't let you disable processor C-States, so instead in your Windows power option profile change the Processor Power Management values so that the minimum AND maximum values are 99% and see whether that stops the BSODs. What this does is stop the processors entering a lower power state at idle, the cost is increased power use and increased heat output - not good things in a laptop.

Why 99% and not 100%? I know that for most people 99% stops the processors entering lower power states, I'm not so sure whether 100% does. If setting both to 99% does stop the BSODs then you can try 100%.

Just checked my settings and both are at 100% by default. Do you think I should change it to 99%?

 

[ubuysa]

It's worth a try.

Why were both at 100%? That's not a default setting.

 

[Phenom16]

It's worth a try.

Why were both at 100%? That's not a default setting.

It is, under the "Ultimate Performance" plan.