What does BSOD 31 (SHARED_RESOURCE_CONV_ERROR) mean?

 
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SHARED_RESOURCE_CONV_ERROR

Executive resource conversion failure for SHARED_RESOURCE_CONV_ERROR

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 for SHARED_RESOURCE_CONV_ERROR

  • 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 for SHARED_RESOURCE_CONV_ERROR

  • 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 for SHARED_RESOURCE_CONV_ERROR

Dump evidence for SHARED_RESOURCE_CONV_ERROR

For SHARED_RESOURCE_CONV_ERROR, preserve the complete dump, the four bug-check parameters, the exact Windows build, loaded-module list, and the event timeline immediately before the stop. AllStat summarizes the condition as “SHARED_RESOURCE_CONV_ERROR”; that sentence identifies the failure class, while the parameters and stack determine which object, driver, processor, or subsystem instance was involved.

Analysis order for SHARED_RESOURCE_CONV_ERROR

  • Run WinDbg !analyze -v, then inspect the documented meaning of each SHARED_RESOURCE_CONV_ERROR parameter instead of relying only on the probably-caused-by line.
  • For SHARED_RESOURCE_CONV_ERROR, find the earliest abnormal event: driver update, firmware change, device reset, storage error, verifier report, resource exhaustion, or application hang connected with shared / resource / conv.
  • For SHARED_RESOURCE_CONV_ERROR, keep third-party filter, security, storage, graphics, and virtualization drivers in the module inventory; removing evidence before dump analysis can obscure the responsible path.

Do not repeatedly reboot a machine affected by SHARED_RESOURCE_CONV_ERROR before collecting the dump and event logs. For SHARED_RESOURCE_CONV_ERROR, recovery actions should follow the component identified by the stack and parameters, not merely the symbolic stop-code name.

Dump evidence for SHARED_RESOURCE_CONV_ERROR

For SHARED_RESOURCE_CONV_ERROR, preserve the complete dump, the four bug-check parameters, the exact Windows build, loaded-module list, and the event timeline immediately before the stop. AllStat summarizes the condition as “SHARED_RESOURCE_CONV_ERROR”; that sentence identifies the failure class, while the parameters and stack determine which object, driver, processor, or subsystem instance was involved.

Analysis order for SHARED_RESOURCE_CONV_ERROR

  • Run WinDbg !analyze -v, then inspect the documented meaning of each SHARED_RESOURCE_CONV_ERROR parameter instead of relying only on the probably-caused-by line.
  • For SHARED_RESOURCE_CONV_ERROR, find the earliest abnormal event: driver update, firmware change, device reset, storage error, verifier report, resource exhaustion, or application hang connected with shared / resource / conv.
  • For SHARED_RESOURCE_CONV_ERROR, keep third-party filter, security, storage, graphics, and virtualization drivers in the module inventory; removing evidence before dump analysis can obscure the responsible path.

Do not repeatedly reboot a machine affected by SHARED_RESOURCE_CONV_ERROR before collecting the dump and event logs. For SHARED_RESOURCE_CONV_ERROR, recovery actions should follow the component identified by the stack and parameters, not merely the symbolic stop-code name.


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