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PROFILER_CONFIGURATION_ILLEGAL
Illegal kernel profiler configuration for PROFILER_CONFIGURATION_ILLEGAL
PROFILER_CONFIGURATION_ILLEGAL is bug check code 0x0000017B. This bug check points at kernel profiling or tracing configuration that the system rejected as unsafe or inconsistent. It should be read as a configuration and instrumentation problem, not as a normal application performance issue.
How to read it in a dump
- Identify active kernel profilers, ETW sessions, sampling sources, and performance counter configuration.
- The failure can be caused by unsupported sampling mode, bad buffer setup, or incompatible profiling flags.
- Third-party profilers and security tools can be involved if they program low-level counters.
What to check
- Disable or update the profiler or monitoring driver that is active in the dump.
- Check ETW/perf counter configuration and recent tracing changes.
- Reproduce with symbols and verifier if a driver programs processor performance facilities directly.
References
Dump evidence
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 “this result”; that sentence identifies the failure class, while the parameters and stack determine which object, driver, processor, or subsystem instance was involved.
Analysis order
- Run WinDbg
!analyze -v, then inspect the documented meaning of each parameter instead of relying only on the probably-caused-by line. - find the earliest abnormal event: driver update, firmware change, device reset, storage error, verifier report, resource exhaustion, or application hang connected with profiler / configuration / illegal.
- 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 this result before collecting the dump and event logs. Recovery actions should follow the component identified by the stack and parameters, not merely the symbolic stop-code name.
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