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charset=utf-8 Content-Transfer-Encoding: 7bit X-Mailer: Zimbra 8.5.0_GA_3042 (ZimbraWebClient - GC151 (Linux)/8.5.0_GA_3042) Thread-Index: RhW/9HGclNG0p4Lc6WJv/0xagH2V7A== Thread-Topic: Continuously increasing spurious interrupts inside pSeries guest on PowerNV host With kernel 6.12 (Debian stable) we see a continuously increasing spurious interrupt count inside a pSeries guest running on a PowerNV host: cat /proc/interrupts CPU0 16: 0 XIVE-IPI 0 Edge IPI-0 17: 0 XIVE-IRQ 4096 Edge RAS_EPOW 21: 2 XIVE-IRQ 4353 Edge hvc_console 23: 0 XIVE-IRQ 4097 Edge RAS_HOTPLUG 24: 0 pSeries-PCI-MSI 0 Edge virtio0-config 25: 50995 pSeries-PCI-MSI 1 Edge virtio0-input.0 26: 45569 pSeries-PCI-MSI 2 Edge virtio0-output.0 27: 0 pSeries-PCI-MSI 16384 Edge virtio1-config 28: 6 pSeries-PCI-MSI 16385 Edge virtio1-input LOC: 5781 Local timer interrupts for timer event device BCT: 0 Broadcast timer interrupts for timer event device LOC: 2 Local timer interrupts for others SPU: 449927 Spurious interrupts PMI: 0 Performance monitoring interrupts MCE: 0 Machine check exceptions NMI: 0 System Reset interrupts WDG: 0 Watchdog soft-NMI interrupts DBL: 0 Doorbell interrupts The spurious interrupts are apparently from the virtio0-[input|output] devices.