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Fatal Error Solutions
     
 

BAD_POOL_CALLER

STOP: 0x000000C2

 
  Description  
     
 

An application or driver made a invalid memory request and likely has a bug.

This is a fatal Windows error, typically called a Stop message, Bug Check, or more commonly the Blue Screen of Death (BSoD). The system is in a forced reboot state. Any unsaved work is likely lost.

 
   
  Sample Screen  
     
 

A problem has been detected and Windows has been shut down to prevent damage to your computer.

BAD_POOL_CALLER

If this is the first time you've seen this Stop error screen, restart your computer. If this screen appears again, follow these steps:

Check to make sure any new hardware or software is properly installed. If this is a new installation, ask your hardware or software manufacturer for any Windows updates you might need.

If problems continue, disable or remove any newly installed hardware or software. Disable BIOS memory options such as caching or shadowing. If you need to use Safe Mode to remove or disable components, restart your computer, press F8 to select Advanced Startup Options, and then select Safe Mode.

Technical Information:

*** STOP: 0x000000C2

Beginning dump of physical memory
Physical memory dump complete.

Contact your system administrator or technical support group for further
assistance.

 
 
Text may appear differently depending on where the error occurs.
Additional technical information (hex values) specific to a machine are not shown.
 
   
  Key Facts  
     
 
Full Title
  BAD_POOL_CALLER 

Stop Code
  0x000000C2 

Type
  Fatal 

occurance meter
Windows
  2000, XP, Vista, 2008, 7, 8

Vendor
  Microsoft Corporation
 
   
  Solutions and Fixes  
     
 
  date Votes Ratings
Reinstall Windows
8
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Reinstall a clean version of Windows using the installation CD/DVD. This may erase all your data, so be sure to have a valid backup before starting.

 
   
 
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  FaultVVire SuperUser
Posted: 7-Apr-2010
Solutions Created: 1
 
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Fix Software Bugs
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Check if this software bug applies to your system:

During an upgrade from 2000 to XP, this error occurs when the computer has a Winnov Videum AVI video capture adapter with the Videum software version 2.9.2. This is commonly found on the Compaq Professional Workstation AP550 computer. Fix instructions are available from Microsoft article 310527.

Using the ATI Fury Maxx Video Adapter with XP can cause this problem. Upgrade to the latest ATI video driver (Microsoft article 307151).

 
   
 
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  FaultWire Staff
Posted: 5-Oct-2008
 
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Check Memory
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You may have a defective memory. This is even more likely if it only occurs when the system is cold or hot, but not all the time. Use a memory tester to confirm if it is defective or if you have spare memory, try replacement.

Windows 7 and Vista include a Memory Test program when booting from the Windows Installation DVD. Step-by-step instructions with screen shots are available at Using System Restore on 7/Vista/2008 as part of System Recovery.

Several software products that also provide memory and video diagnostics includes Fix-It Utilities Professional and SystemSuite Professional. Other diagnostic products include Eurosoft's PC Check and Iolo's System Mechanic.

Additional Memory Solutions:

  • Confirm all the memory is of the same type and speed. Many motherboards only work correctly when the memory is installed with matched sets and matched speeds.
  • If you added or changed your memory just before this problem occurred, try reverting to the prior memory configuration to confirm it's the source of the problem.
  • Check that the memory is fully seated in the sockets. Memory sockets often have side latches that need to be upright to indicate the memory is correctly locked in place.
  • Confirm the memory resides in the correct slots on the motherboard. You'll need to refer to the motherboard manual to confirm this. There is little consistency, even within a single vendor. Some systems require that memory is installed as matched pairs, but not always adjacent to each other!
  • It's also possible the memory problem is on the video card, as they often contain additional memory. The video card should be tested and/or try a different video card to see if the problem goes away.
 
   
 
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  FaultWire Staff
Posted: 5-Oct-2008
 
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Get the Latest Drivers
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Check if you are using the latest hardware drivers, especially the chipset and video drivers. Older drivers are a common contributor to BSoD issues.

You can use a product like Driver Genius or Radar Sync to verify you have the latest drivers and help keep all your drivers up-to-date. If you're comfortable with driver installations, you can individually find and install current drivers.

A some of the most popular driver download sites:

 
   
 
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  FaultWire Staff
Posted: 5-Oct-2008
 
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Get the Latest Updates
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Install the latest Windows software updates. Don't forget to check for non-critical updates too!

To manually get updates, open Internet Explorer (you can't use a non-Microsoft browser for updates).

For IE 8 and later: Click on Safety, then Windows Update. Follow the instructions.


 

For IE 7 and older: Click on Tools, then Windows Update. Follow the instructions.


 
   
 
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  FaultWire Staff
Posted: 5-Oct-2008
 
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Also see our list of common Fatal Error Solutions.

 
 
 
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Check out what others say about this issue and review or add your own comments and solutions!

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  Technical Details  
     
 
  technical details

The current thread is making a bad pool request.

After the Stop code will be 4 hex values: {Parameter 1, Parameter 2, Parameter 3, Parameter 4}.

Parameter 1 specifies the cause of the issue.

0x00000000 The current thread requested a zero-byte pool allocation.
0x00000001 The pool header has been corrupted.
0x00000002 The pool header has been corrupted.
0x00000004 The pool header has been corrupted.
0x00000006 The current thread attempted to free the pool, which was already freed.
0x00000007 The current thread attempted to free the pool, which was already freed.
0x00000008 The current thread attempted to allocate the pool at an invalid IRQL (Interrupt Request Level).
0x00000009 The current thread attempted to free the pool at an invalid IRQL.
0x0000000A The current thread attempted to free pool memory by using the wrong tag. (The memory might belong to another component.)
0x0000000B The current thread attempted to release a quota on a corrupted pool allocation.
0x0000000C The current thread attempted to release a quota on a corrupted pool allocation.
0x0000000D The current thread attempted to release a quota on a corrupted pool allocation.
0x00000040 The current thread attempted to free the kernel pool at a user-mode address.
0x00000041 The current thread attempted to free a non-allocated nonpaged pool address.
0x00000042 The current thread attempted to free a virtual address that was never in any pool.
0x00000043 The current thread attempted to free a virtual address that was never in any pool.
0x00000044 The current thread attempted to free a non-allocated nonpaged pool address.
0x00000046 The current thread attempted to free an invalid pool address.
0x00000047 The current thread attempted to free a non-allocated nonpaged pool address.
0x00000048 The current thread attempted to free a non-allocated paged pool address.
0x00000050 The current thread attempted to free a non-allocated paged pool address.
0x00000060 The current thread attempted to free an invalid contiguous memory address (The caller of MmFreeContiguousMemory is passing a bad pointer.)
0x00000099 The current thread attempted to free pool with an invalid address (This code can also indicate corruption in the pool header.)
0x0000009A The current thread marked an allocation request MUST_SUCCEED (This pool type is no longer supported.)
0x0000009B The current thread attempted to allocate a pool with a tag of 0 (This would be untrackable, and possibly corrupt the existing tag tables.)
0x0000009C The current thread attempted to allocate a pool with a tag of "BIG" (This would be untrackable and could possibly corrupt the existing tag tables.)
0x0000009D The current thread attempted to allocate a pool with a tag that does not contain any letters or digits. Using such tags makes tracking pool issues difficult.
0x00041286 The current thread attempted to free a paged pool address in the middle of an allocation.

Parameter 2 depends on the value of Parameter 1.

Parameter 3 depends on the value of Parameter 1.

Parameter 4 depends on the value of Parameter 1.

 
   
  Vendor Summary  
     
 
Vendor
  Microsoft Corporation (more info...)

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    While BSoD fatal stop errors are identified by Microsoft Windows, they are often caused by non-Microsoft applications, drivers and hardware issues.  
   
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