What does BSOD 61699 (SAVER_MTBFIOERROR) mean?

 
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SAVER_MTBFPASSBUGCHECK SAVER_RENDERTHREADHANG

SAVER_MTBFIOERROR

SAVER MTBF I/O error bucket for SAVER_MTBFIOERROR

SAVER_MTBFIOERROR is bug check code 0x0000F103. This reliability-test bucket points at I/O failure during an MTBF path. It should be correlated with storage, filesystem, device, or network I/O logs depending on the stack recorded in the dump.

How to read it in a dump for SAVER_MTBFIOERROR

  • Treat this value as an internal diagnostic bucket from the Windows SAVER family, not as a classic blue-screen stop code with public parameter semantics.
  • For SAVER_MTBFIOERROR, the useful evidence is the dump type, WER bucket, triggering process, provider-specific data, and event-log context around the capture.
  • For SAVER_MTBFIOERROR, the symbolic name narrows the subsystem that requested capture; it does not by itself identify a defective driver or application.

What to check for SAVER_MTBFIOERROR

  • Check disk, storage controller, filesystem, and device events around the capture.
  • Identify the I/O target and request type from the dump stack.
  • Do not assume physical disk failure without matching error records.

References for SAVER_MTBFIOERROR

Dump evidence for SAVER_MTBFIOERROR

For SAVER_MTBFIOERROR, 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 “SAVER_MTBFIOERROR”; that sentence identifies the failure class, while the parameters and stack determine which object, driver, processor, or subsystem instance was involved.

Analysis order for SAVER_MTBFIOERROR

  • Run WinDbg !analyze -v, then inspect the documented meaning of each SAVER_MTBFIOERROR parameter instead of relying only on the probably-caused-by line.
  • For SAVER_MTBFIOERROR, find the earliest abnormal event: driver update, firmware change, device reset, storage error, verifier report, resource exhaustion, or application hang connected with saver / mtbfioerror.
  • For SAVER_MTBFIOERROR, 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 SAVER_MTBFIOERROR before collecting the dump and event logs. For SAVER_MTBFIOERROR, recovery actions should follow the component identified by the stack and parameters, not merely the symbolic stop-code name.

Dump evidence for SAVER_MTBFIOERROR

For SAVER_MTBFIOERROR, 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 “SAVER_MTBFIOERROR”; that sentence identifies the failure class, while the parameters and stack determine which object, driver, processor, or subsystem instance was involved.

Analysis order for SAVER_MTBFIOERROR

  • Run WinDbg !analyze -v, then inspect the documented meaning of each SAVER_MTBFIOERROR parameter instead of relying only on the probably-caused-by line.
  • For SAVER_MTBFIOERROR, find the earliest abnormal event: driver update, firmware change, device reset, storage error, verifier report, resource exhaustion, or application hang connected with saver / mtbfioerror.
  • For SAVER_MTBFIOERROR, 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 SAVER_MTBFIOERROR before collecting the dump and event logs. For SAVER_MTBFIOERROR, recovery actions should follow the component identified by the stack and parameters, not merely the symbolic stop-code name.

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