BSOD Memory_Management

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  1. Arc
    Posts : 35,373
    Microsoft Windows 10 Pro Insider Preview 64-bit
       #11

    Code:
    *******************************************************************************
    *                                                                             *
    *                        Bugcheck Analysis                                    *
    *                                                                             *
    *******************************************************************************
    
    BAD_POOL_HEADER (19)
    The pool is already corrupt at the time of the current request.
    This may or may not be due to the caller.
    The internal pool links must be walked to figure out a possible cause of
    the problem, and then special pool applied to the suspect tags or the driver
    verifier to a suspect driver.
    Arguments:
    Arg1: 0000000000000020, a pool block header size is corrupt.
    Arg2: fffff8800c98d5b8, The pool entry we were looking for within the page.
    Arg3: fffff8800c98da78, The next pool entry.
    Arg4: 000000000d4c49b0, (reserved)
    
    Debugging Details:
    ------------------
    So you need to enable Driver Verifier to monitor the drivers at this stage. Run Driver Verifier for 24 hours or the occurrence of the next crash, whichever is earlier.

       Information
    Why Driver Verifier:
    It puts a stress on the drivers, ans so it makes the unstable drivers crash. Hopefully the driver that crashes is recorded in the memory dump.

    How Can we know that DV is enabled:
    It will make the system bit of slow, laggy.

       Warning
    Before enabling DV, make it sure that you have earlier System restore points made in your computer. You can check it easily by using CCleaner looking at Tools > System Restore.

    If there is no points, make a System Restore Point manually before enabling DV.

       Tip



    Let us know the results, with the subsequent crash dumps, if any.
      My Computer


  2. Posts : 9
    Windows 7 Home Premium
    Thread Starter
       #12

    Special Pool Detected Memory Corruption


    Arc,

    I haven't used the computer much in the last couple of days but after setting up the verifier it ran for about 30 mins before BSOD with Special Pool Detected Memory Corruption. File attached. I think both the previous and new minidump files were included in the file. Regards.
      My Computer


  3. Arc
    Posts : 35,373
    Microsoft Windows 10 Pro Insider Preview 64-bit
       #13

    Driver verifier detects memory corruption.
    Code:
    BugCheck C1, {fffff980102f2fe0, fffff980102f2274, 910018, 32}
    
    Probably caused by : memory_corruption ( nt!MiCheckSpecialPoolSlop+83 )
    
    Followup: MachineOwner
    ---------
    Code:
    SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION (c1)
    Special pool has detected memory corruption.  Typically the current thread's
    stack backtrace will reveal the guilty party.
    Arguments:
    Arg1: fffff980102f2fe0, address trying to free
    Arg2: fffff980102f2274, address where one bit is corrupted
    Arg3: 0000000000910018, (reserved)
    Arg4: 0000000000000032, caller is freeing an address where nearby bytes within the same page have a single bit error
    No guilty party is revealed, nothing in the raw stacks, too.

    So it may not be a driver caused BSOD. Let us look at the RAM now. Test your RAM modules for possible errors. Run memtest86+ for at least 8 consecutive passes.

    If it start showing errors/red lines, stop testing. A single error is enough to determine that something is going bad there.

    Let us know how it goes. It would be the best reporting if you can take a camera snap of the memtest86+ screen before closing it and upload the picture here.
      My Computer


  4. Posts : 9
    Windows 7 Home Premium
    Thread Starter
       #14

    Arc,

    I've just managed to get the opportunity to carry out a series of memory tests. No faults were reported. Picture attached.
      My Computer


  5. Arc
    Posts : 35,373
    Microsoft Windows 10 Pro Insider Preview 64-bit
       #15

    It is a memory error, as the dumps are reporting.

    Driver verifier is not finding any driver causing it.

    Memtest is not causing any memory failure.

    So, another possibility is .... mismatch RAM.

    Your 10 GB RAM consists of two sticks; one 8 GB and one 2 GB.
    Code:
      Physical Memory Array Handle  000bh
      Memory Error Info Handle      [Not Provided]
      Total Width                   64 bits
      Data Width                    64 bits
      Size                          8192MB
      Form Factor                   0dh - SODIMM
      Device Set                    [None]
      Device Locator                ChannelA-DIMM0
      Bank Locator                  BANK 0
      Memory Type                   18h - Specification Reserved
      Type Detail                   0080h - Synchronous
      Speed                         1600MHz
      Manufacturer                  8502
    Code:
      Physical Memory Array Handle  000bh
      Memory Error Info Handle      [Not Provided]
      Total Width                   64 bits
      Data Width                    64 bits
      Size                          2048MB
      Form Factor                   0dh - SODIMM
      Device Set                    [None]
      Device Locator                ChannelB-DIMM0
      Bank Locator                  BANK 2
      Memory Type                   18h - Specification Reserved
      Type Detail                   0080h - Synchronous
      Speed                         1600MHz
      Manufacturer                  Hynix/Hyundai
    As those sticks are from different manufacturer, there remains a chance that they may not work properly with each other. RAM should be bought in a KIT, a couple or more sticks tested to work together.

    Remove either one, see how the computer is running with the remaining one.
      My Computer


  6. Posts : 9
    Windows 7 Home Premium
    Thread Starter
       #16

    Sorted!


    Arc,

    thanks for all the assistance. I removed the suspect RAM and ran it in another laptop which transferred the intermittent BSOD. This laptop has been good ever since. I'd say case closed.

    Thanks again,

    Paul
      My Computer


  7. Arc
    Posts : 35,373
    Microsoft Windows 10 Pro Insider Preview 64-bit
       #17

    You are welcome, Paul. Let us know for any further issue.
      My Computer


 
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