BSOD error " DRIVER CORRUPTED EXPOOL, BAD POOL CALLER, SYSTEM THREAD EXCEPTION NOT HANDLED, and IRQL NOT LESS OR EQUAL."

Question

Original Title: BSOD and Audio Issues.

Hello,

I updated to Windows 8.1 a little over a week ago and it has been giving me nothing but issues. Last weekend, I ran into a BSOD every time I restarted my computer. It would give me error messages like, DRIVER CORRUPTED EXPOOL, BAD POOL CALLER, SYSTEM THREAD EXCEPTION NOT HANDLED, and IRQL NOT LESS OR EQUAL. After countless attempts of restarting in Safe Mode and such, I finally got back into my laptop. There was an issue with the Bluetooth driver, so I updated it and the issue seemed to be solved. Then a few days ago, I restarted my laptop and I got two more BSODs. After that, I realized that when I plugged in my laptop into my HDTV with an HDMI cable, it would not recognize the TV as a playback device. I finally found that my Intel audio driver as having issues, so I updated it and it worked for the time being. Then today, I tried connecting it to the TV again and ran into the same issue. The driver from before was already updated, so I restarted my laptop and the BSOD happened again. The errors were the BAD POOL CALLER and DRIVER CORRUPTED EXPOOL. I've attached the DMP files for the crashes today, but unfortunately the others weren't in the folder. Any help would be appreciated. 

DMP Files:

https://onedrive.live.com/redir?resid=5FD56EBBEB275447!597&authkey=!AOHONxrNXrifpQY&ithint=file%2c.zip

Answer 1

Hi,

Two dumps, but one was corrupt.

The attached DMP file is of the BAD_POOL_CALLER (c2) bug check.

This indicates that the current thread is making a bad pool request.

BugCheck C2, {7, 1200, 0, ffffe0001ebf1290}

6: kd> !pool ffffe0001ebf1290

Pool page ffffe0001ebf1290 region is Unknown

 ffffe0001ebf1000 size:  250 previous size:    0  (Allocated)  @GM2

 ffffe0001ebf1250 size:   10 previous size:  250  (Free)       Free

 ffffe0001ebf1260 size:   20 previous size:   10  (Allocated)  NGLG

6: kd> !poolval ffffe0001ebf1290

Pool page ffffe0001ebf1290 region is Unknown

Validating Pool headers for pool page: ffffe0001ebf1290

Pool page [ ffffe0001ebf1000 ] is __inVALID.

Analyzing linked list...

[ ffffe0001ebf1260 --> ffffe0001ebf1470 (size = 0x210 bytes)]: Corrupt region

^^ Looks like we have a driver causing corruption.

6: kd> k

Child-SP          RetAddr           Call Site

ffffd000259ad6e8 fffff8011f8b442a nt!KeBugCheckEx

ffffd000259ad6f0 fffff801c2a82129 nt!ExFreePoolWithTag+0x114a

ffffd000259ad7c0 0000000000000004 ngvpn+0xc129

ffffd000259ad7c8 fffff801c2a83de8 0x4

ffffd000259ad7d0 ffffe0001ebf1398 ngvpn+0xdde8

ffffd000259ad7d8 fffff801c2a82c17 0xffffe000`1ebf1398

ffffd000259ad7e0 ffffe0001ef93cb0 ngvpn+0xcc17

ffffd000259ad7e8 fffff801c2a821a8 0xffffe000`1ef93cb0

ffffd000259ad7f0 00000000c00000e5 ngvpn+0xc1a8

ffffd000259ad7f8 0000000000000000 0xc00000e5

^^ Aventail VPN Adapter driver seems to be the culprit here, so please remove this software ASAP.

Regards,

Patrick

Answer 2

Glad to hear the BSOD's aren't a problem as of this time.

If and when you are comfortable and feel your issue has been solved, I'd recommend marking any posts of mine that answered your question as answered so this thread no longer shows up as requiring an answer.

Regarding your audio issues, I'd make a new thread as that's at this point unrelated to your BSOD's, and we don't want to have 2 problems in 1 thread. It creates confusion.

Regards,

Patrick

Answer 3

Thank you Patrick. The BSOD issue seems to be fixed so far. However, do you have any idea what is causing the audio issues? I've made sure all of the drivers are updated, and I've tried both different cables and TVs, but nothing is giving me sound. Thanks again!