Bug 219774

Summary:	Interrupt Affinity Inquiry
Product:	Drivers	Reporter:	yuboyang (553216989)
Component:	Platform_x86	Assignee:	drivers_platform_x86 (drivers_platform_x86)
Status:	NEW ---
Severity:	normal
Priority:	P3
Hardware:	All
OS:	Linux
Kernel Version:		Subsystem:
Regression:	No	Bisected commit-id:

Description yuboyang 2025-02-12 03:10:22 UTC

Hello, I have a technical question I’d like to ask. I noticed that when an interrupt uses both smp_affinity and effective_affinity, it is forced to bind to the CPU specified by effective_affinity. May I ask which part of the code makes effective_affinity override and take effect over smp_affinity? I would be very grateful if you could help me with this. Thank you very much in advance.

Comment 1 yuboyang 2025-02-12 06:15:16 UTC

The effective affinity configuration I would like to inquire about is related to MSI interrupts.