Hi Matt,

-s 0,hostbridge


Things should work if you leave out the hostbridge. The PCIe capability that is tacked on to this will make Illumos use MSI/MSIx for the virtio adapter which apparently hits a bug in the driver. Without it, the virtio driver will fall back to legacy interrupts. This also means that the virtio adapter will be confined to slots 3/4/5/6.

[root@smartos ~]# echo ::interrupts | mdb -k
IRQ  Vect IPL Bus    Trg Type   CPU Share APIC/INT# ISR(s)
1    0x40 5   ISA    Edg Fixed  0   1     0x0/0x1   i8042_intr
3    0xb1 12  ISA    Edg Fixed  0   1     0x0/0x3   asyintr
4    0xb0 12  ISA    Edg Fixed  0   1     0x0/0x4   asyintr
9    0x81 9   PCI    Lvl Fixed  1   1     0x0/0x9   acpi_wrapper_isr
12   0x41 5   ISA    Edg Fixed  1   1     0x0/0xc   i8042_intr
16   0x42 5   PCI    Lvl Fixed  1   1     0x0/0x10  ahci_intr
17   0x43 5   PCI    Lvl Fixed  0   1     0x0/0x11  ahci_intr
18   0x60 6   PCI    Lvl Fixed  1   1     0x0/0x12  virtio_intx_dispatch
160  0xa0 0          Edg IPI    all 0     -         poke_cpu
208  0xd0 14         Edg IPI    all 1     -         kcpc_hw_overflow_intr
209  0xd1 14         Edg IPI    all 1     -         cbe_fire
210  0xd3 14         Edg IPI    all 1     -         cbe_fire
240  0xe0 15         Edg IPI    all 1     -         xc_serv
241  0xe1 15         Edg IPI    all 1     -         apic_error_intr


 (I believe Andriy Gapon (cc'd) has a fix for this in Illumos)

later,

Peter.

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