Intel IPP status 43 (ippStsWaterfall): meaning and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: IPP could not load a required optimized library and continued through a waterfall fallback.

Could be also:
Constant	Type	OS
KERN_RPC_SERVER_TERMINATED	Kern return	Mac
EIDRM	errno	Linux
EPROTONOSUPPORT	errno	Mac
ENOCSI	errno	Solaris
PANIC_STACK_SWITCH	BugCheck Code	Windows

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ippStsI18nGetMessageFail	ippStsPrevLibraryUsed

ippStsWaterfall

In IPP terminology, this warning belongs to dynamic dispatch. The dispatcher attempted to load a required processor-specific library and fell through to another available implementation.

The result may be functionally usable but performance can change. This status is therefore important in benchmark logs and production telemetry even when no negative error follows.

Diagnostic focus

Record resolved IPP library paths and the selected dispatch layer.
Check installer packaging for missing optimized binaries.
Correlate this warning with sudden throughput regressions.

Intel IPP Error Reporting · Intel IPP CPU dispatching

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