BSOD 131 (OFS_FILE_SYSTEM): causes and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The historical OFS file-system path detected a fatal condition.

Could be also:
Constant	Type	OS
ERROR_NEGATIVE_SEEK	Win32 error	Windows
ECONNRESET	errno	Solaris
EOTHER	errno	Windows

OFS_FILE_SYSTEM

Legacy OFS file-system failure

OFS_FILE_SYSTEM is bug check code 0x00000083. This is a historical Windows file-system bug check name. It should be interpreted through the actual stack and loaded file-system/filter drivers; the name alone is not enough to diagnose a modern NTFS, ReFS, or exFAT volume.

How to read it in a dump

Look for file-system, filter-manager, legacy filter, or storage components on the stack.
The code name is legacy; modern systems may only expose it as a defined bug-check value.
Do not assume the failed volume uses OFS unless the dump proves it.

What to check

Identify the crashing file-system module and volume type.
Check file-system filters, antivirus/encryption/backup drivers, and storage errors.
Use a full dump if filter interactions or object lifetime are suspected.

References

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