BSOD 31 (SHARED_RESOURCE_CONV_ERROR): causes and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: An executive shared-resource conversion failed or found inconsistent state.

Could be also:
Constant	Type	OS
ERROR_GEN_FAILURE	Win32 error	Windows
KERN_DEFAULT_SET	Kern return	Mac
ippStsSmallerCodebook	Intel Ipp Status	Any
EMLINK	errno	Any

SHARED_RESOURCE_CONV_ERROR

Executive resource conversion failure

SHARED_RESOURCE_CONV_ERROR is bug check code 0x0000001F. Executive resources are reader/writer-style synchronization objects used by file systems and other kernel components. This code points at a failure while converting or managing shared/exclusive ownership.

How to read it in a dump

The stack should show whether a file system, file-system filter, cache manager, or memory manager path owns the resource.
Look for conversion between shared and exclusive acquisition, recursive acquisition, or release on the wrong path.
This is a synchronization contract failure, not simply a busy file.

What to check

Enable verifier deadlock checks for filters and storage/file-system drivers.
Review paths that upgrade or downgrade resource ownership.
Check for memory corruption of ERESOURCE or adjacent pool allocations.

References

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