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"0x0000004E" Stop error when shadow copying fails on a computer that is running Windows Server 2012

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Symptoms
Assume that Snapshot Protection mode is enabled on a computer that is running Windows Server 2012. When shadow copying fails, the computer crashes. Additionally, you receive the following Stop error message:
STOP: 0x0000004E (parameter1, parameter2 , parameter3 , parameter4 )
PFN_LIST_CORRUPT

Note
Not all "0x0000004E" Stop errors are caused by this problem.

For example, assume that you use Microsoft System Center 2012 Data Protect Manager to perform a backup operation. When the snapshot volume runs out of memory or disk space, you encounter this issue.
Cause
This issue occurs because the Volume Shadow Copy driver (Volsnap.sys) does not clean up I/O Request Packets (IRPs) correctly when a "Device not connected" error occurs in the I/O operation.
Resolution

Update information

To resolve this issue, install the Windows 8 and Windows Server 2012 update rollup 2855336. For more information about how to obtain this update rollup package, click the following article number to go to the article in the Microsoft Knowledge Base:
2855336 Windows RT, Windows 8, and Windows Server 2012 update rollup: July 2013
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More information
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
Properties

Article ID: 2853579 - Last Review: 10/09/2014 12:23:00 - Revision: 3.0

Windows Server 2012 Datacenter, Windows Server 2012 Essentials, Windows Server 2012 Foundation, Windows Server 2012 Standard

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