On 03/12/2025 16:02, Crystal Kolipe wrote: > On Wed, Dec 03, 2025 at 03:17:07PM +0200, Kapetanakis Giannis wrote: >> Is there a limit on number of vio devices? > Not exactly a limit on vio devices - in this case you seem to be exceeding the > number of available interrupt vectors.
Is this tunable (sysctl) or does it need a custom kernel? probably something bigger... the fail comes from intr.c: intr_allocate_slot() which (to my reading is limited by MAX_INTR_SOURCES) /* * Maximum # of interrupt sources per CPU. 64 to fit in one word. * ioapics can theoretically produce more, but it's not likely to * happen. For multiple ioapics, things can be routed to different * CPUs. */ #define MAX_INTR_SOURCES 64 #define NUM_LEGACY_IRQS 16 G
