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Shows the number of different IRQs received by the kernel. High disk or network traffic can cause a high number of interrupts (with good hardware and drivers this will be less so). Sudden high interrupt activity with no associated higher system activity is not normal.

Field Internal name Type Warn Crit Info
3f00b880.mailbox [1] i2 derive     Interrupt 2, for device(s): 3f00b880.mailbox [1]
VCHIQ doorbell [2] i3 derive     Interrupt 3, for device(s): VCHIQ doorbell [2]
51 i51 derive     Interrupt 51, for device(s): 3f980000.usb, 3f980000.usb, dwc2_hsotg:usb1 [41]
bcm2708_fb DMA [48] i58 derive     Interrupt 58, for device(s): bcm2708_fb DMA [48]
DMA IRQ [50] i60 derive     Interrupt 60, for device(s): DMA IRQ [50]
DMA IRQ [52] i62 derive     Interrupt 62, for device(s): DMA IRQ [52]
DMA IRQ [53] i63 derive     Interrupt 63, for device(s): DMA IRQ [53]
ttyS0 [61] i71 derive     Interrupt 71, for device(s): ttyS0 [61]
3f804000.i2c [85] i95 derive     Interrupt 95, for device(s): 3f804000.i2c [85]
3f204000.spi [86] i96 derive     Interrupt 96, for device(s): 3f204000.spi [86]
mmc0 [88] i98 derive     Interrupt 98, for device(s): mmc0 [88]
uart-pl011 [89] i99 derive     Interrupt 99, for device(s): uart-pl011 [89]
mmc1 [94] i104 derive     Interrupt 104, for device(s): mmc1 [94]
arch_timer [1] i180 derive     Interrupt 180, for device(s): arch_timer [1]
kvm guest vtimer [3] i181 derive     Interrupt 181, for device(s): kvm guest vtimer [3]
arm-pmu [9] i183 derive     Interrupt 183, for device(s): arm-pmu [9]
-phy usb-001:003:01 [0] i184 derive     Interrupt 184, for device(s): -phy usb-001:003:01 [0]
Rescheduling interrupts iIPI0 derive     Interrupt IPI0, for device(s): Rescheduling interrupts
Function call interrupts iIPI1 derive     Interrupt IPI1, for device(s): Function call interrupts
CPU stop interrupts iIPI2 derive     Interrupt IPI2, for device(s): CPU stop interrupts
CPU stop NMIs iIPI3 derive     Interrupt IPI3, for device(s): CPU stop NMIs
Timer broadcast interrupts iIPI4 derive     Interrupt IPI4, for device(s): Timer broadcast interrupts
IRQ work interrupts iIPI5 derive     Interrupt IPI5, for device(s): IRQ work interrupts
CPU backtrace interrupts iIPI6 derive     Interrupt IPI6, for device(s): CPU backtrace interrupts
KGDB roundup interrupts iIPI7 derive     Interrupt IPI7, for device(s): KGDB roundup interrupts
Err iErr derive